Publication Information

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87, 204], 'Zhang,': [19], 'Bo': [20, 101], 'Yuan': [22, 123, 3992], 'Liang,': [23], 'Yanpei': [24, 132], 'Wang,': [25], 'Sheng': [26, 154], 'Xie,': [27], 'Hoa': [28, 176], 'Phan,': [29], 'Tun': [30, 188], 'Seng': [31, 189], 'Herng,': [32], 'Ding,': [34], 'Jishan': [35, 219], 'Wu,': [36], 'Ben': [37, 231], 'Zhong': [38, 232], 'Tang': [39, 233, 4603], 'and': [40, 50, 55, 72, 77, 92, 108, 113, 139, 144, 161, 166, 195, 210, 249, 255, 268, 273, 287, 292, 342, 459, 461, 532, 567, 573, 592, 609, 639, 778, 857, 890, 904, 971, 1064, 1107, 1132, 1152, 1156, 1165, 1210, 1306, 1308, 1312, 1322, 1427, 1450, 1522, 1602, 1665, 1731, 1742, 1756, 1809, 1846, 1852, 1930, 1938, 1946, 1973, 2000, 2035, 2075, 2103, 2120, 2147, 2177, 2183, 2201, 2222, 2261, 2269, 2280, 2298, 2305, 2347, 2418, 2469, 2625, 2651, 2699, 2706, 2721, 2736, 2808, 2908, 2914, 2939, 2956, 2964, 2967, 2976, 3001, 3005, 3014, 3019, 3063, 3086, 3106, 3132, 3152, 3181, 3210, 3339, 3425, 3658, 3664, 3712, 3716, 3902, 3936, 3974, 4007, 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4084, 4168, 4176, 4560, 5003, 5164], 'Zhang': [88, 3096, 3451, 4729, 5178], 'School': [89], 'Materials': [91, 193, 208], 'Engineering,': [94, 196, 211], 'Anhui': [95], 'Jianzhu': [96], 'Hefei': [98], '230039': [99], 'Liang': [124], 'Jiurui': [125], 'Biotechnology': [126], 'Co.,': [127], 'Ltd.,': [128], 'Zhangjiajie': [129], '427000': [130], 'Wang': [133, 3074, 3076, 4277, 4389, 4558, 4599, 4911, 4946, 4950, 4952], 'Xie': [155, 4391, 4971, 5174], 'Phan': [177, 3530, 3729, 3834, 3880, 3915, 3955, 4024, 4253, 4289, 4361], 'Department': [178, 191, 206, 221, 234], 'Chemistry,': [180, 223, 236], 'National': [181, 197, 212, 224, 242, 2993, 5226], 'University': [182, 198, 213, 225, 265], 'Singapore,': [184, 200, 215, 227], 'Singapore': [185, 201, 216, 228], '117543': [186, 229], 'Herng': [190, 3502, 3534, 3731, 3785, 3839, 3884, 3917, 3957, 4028, 4257, 4286, 4363, 4436], 'Science': [194, 209, 267, 2995, 3004, 3018, 5228, 5237, 5251], '119260': [202, 217], 'Ding': [205, 3469, 3513, 3537, 3596, 3650, 3697, 3743, 3807, 3849, 3887, 3926, 3963, 4035, 4078, 4260, 4293, 4370, 4452], 'Wu': [220, 3121, 3148, 3179, 3408, 3423, 3473, 3515, 3541, 3602, 3656, 3705, 3745, 3765, 3811, 3857, 3895, 3928, 3969, 3998, 4039, 4097, 4262, 4301, 4366, 4372, 4419, 4456, 4552, 4570, 4591, 4921, 4982, 5017], 'Hong': [237, 263, 270, 3832, 3875, 5005], 'Kong': [238, 264, 271], 'Branch': [239], 'Chinese': [241, 5214], 'Engineering': [243], 'Center': [245], 'for': [246, 252, 436, 510, 576, 647, 703, 823, 1026, 1123, 1326, 2003, 2072, 2106, 2241, 2255, 2302, 2622, 2799, 2813, 2952, 3025, 3103, 4179, 4238, 5185, 5258], 'Tissue': [247], 'Restoration': [248], 'Reconstruction,': [250], 'Institute': [251], 'Advanced': [253], 'Study': [254], 'HKUST-Shenzhen': [256], 'SCUT-HKUST': [259], 'Joint': [260], 'Technology,': [269], '999077': [272], '*Corresponding': [276], 'author:': [277], 'E-mail': [278], 'Address:': [279], '[email': [280], 'protected]': [281], 'https://doi.org/10.31635/ccschem.021.202000658': [301], 'SectionsSupplemental': [302], 'MaterialAboutAbstractPDF': [303], 'ToolsAdd': [304], 'to': [305, 377, 398, 519, 563, 630, 671, 759, 771, 804, 827, 852, 859, 912, 956, 960, 1031, 1150, 1201, 1219, 1285, 1358, 1458, 1591, 1626, 1690, 1748, 1870, 1886, 1895, 1907, 1927, 1952, 1970, 2018, 2054, 2083, 2088, 2125, 2174, 2232, 2368, 2394, 2425, 2459, 2555, 2628, 2667, 2761, 2770, 2819, 2848, 2864, 2897, 3060, 3134, 3188, 3606, 4424, 5098], 'favoritesDownload': [306], 'CitationsTrack': [307], 'Citations': [308], 'ShareFacebookTwitterLinked': [309], 'InEmail': [310], 'We': [311, 2648], 'report': [312, 713], 'an': [313, 426, 487, 492, 520, 580, 805, 966, 1248, 1287, 1292, 1460, 1517, 1818, 2361, 2419, 2674, 2793, 3043, 4232, 4537, 4956], 'air-stable': [314], 'tetraradicaloid': [315, 2656], 'based': [316, 584, 896, 1223, 2043], 'on': [317, 456, 463, 585, 646, 897, 1188, 1224, 2044, 2211, 2891, 2905, 2911, 4464, 5055], 'a': [318, 332, 404, 421, 430, 468, 507, 512, 516, 538, 595, 666, 672, 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403, 479, 692, 1038, 1059, 1468, 1787, 1804, 1899, 2115, 2751, 2773, 4645, 5153], 'X-ray': [339, 1120, 1299, 2968], 'crystallographic': [340, 1134, 1300, 2969], 'analysis': [341, 1335], 'theoretical': [343, 2152, 2722], 'calculations,': [344], 'the': [345, 393, 434, 452, 586, 604, 610, 648, 662, 682, 704, 774, 792, 799, 811, 828, 833, 849, 853, 860, 866, 909, 913, 985, 1006, 1014, 1032, 1168, 1189, 1220, 1228, 1240, 1252, 1257, 1277, 1327, 1340, 1344, 1349, 1376, 1384, 1387, 1436, 1469, 1491, 1506, 1550, 1575, 1607, 1643, 1695, 1698, 1714, 1781, 1788, 1842, 1874, 1915, 1922, 1953, 1961, 1983, 1990, 2004, 2023, 2045, 2055, 2089, 2121, 2126, 2137, 2155, 2163, 2191, 2219, 2223, 2242, 2252, 2256, 2270, 2313, 2325, 2331, 2338, 2356, 2378, 2383, 2402, 2412, 2434, 2504, 2521, 2530, 2575, 2610, 2629, 2637, 2669, 2680, 2685, 2692, 2704, 2711, 2725, 2739, 2745, 2759, 2788, 2820, 2823, 2830, 2836, 2853, 2865, 2870, 2876, 2992, 3003, 3015, 3208, 3298, 3607, 4147, 4150, 4157, 4181, 4646, 4651, 4760, 4810, 5056, 5090, 5154, 5225, 5236, 5248], 'nonplanar': [346, 1385], 'TBCP': [347, 363, 835, 895, 987, 1055, 1124, 1158, 1192, 1525, 1579, 1623, 1648, 1732, 1763, 1800, 2107, 2143, 2160, 2260, 2263, 2314, 2329, 2465, 2473, 2657, 2690, 2784, 2804], 'possesses': [348], 'unique': [349], 'hybrid': [350, 1317, 1446], 'resonance': [351, 557, 875, 892, 1319, 1379, 1445, 1807], 'structures': [352, 868, 893, 1148, 1320, 2477], 'two': [354, 408, 675, 686, 788, 800, 839, 1145, 1161, 1653, 1666, 2013, 2445, 2592, 2638], 'open-shell': [355, 521, 582, 854, 1293, 1377, 2069, 2167], 'singlet': [356, 457, 2068, 2294, 2462], 'diradicaloids.': [357], 'Remarkably,': [358], 'magnetic': [359, 369, 384, 412, 438, 574, 621, 679, 708, 1797, 2025, 2063, 2140, 2195, 2243, 2607, 2623, 2633, 2714, 2877, 5218], 'measurements': [360, 1834, 2720, 2857], 'reveal': [361, 1573, 2354, 2573, 2688], 'that': [362, 635, 1019, 1044, 1239, 1276, 1401, 1435, 1560, 1574, 2028, 2208, 2355, 2377, 2395, 2574, 2689, 2710], 'in': [364, 451, 475, 524, 598, 665, 685, 722, 754, 782, 810, 872, 931, 982, 988, 1013, 1167, 1175, 1255, 1304, 1343, 1512, 1526, 1557, 1733, 1740, 1765, 1982, 2109, 2144, 2162, 2247, 2312, 2456, 2466, 2474, 2499, 2515, 2549, 2558, 2566, 2615, 2679, 2691, 2703, 2731, 2787, 3385, 3487, 3768, 3931, 4043, 4767, 4955], 'powder': [365, 1801, 2693], 'form': [366, 851, 862, 1439, 2694], 'shows': [367, 1652], 'unusual': [368, 2888], 'hysteresis': [370, 1839, 1932, 2701], 'upon': [371, 2264], 'heating': [372, 1905, 1937, 1991, 2074, 2146, 2265, 2705, 2869], 'followed': [373, 1898], 'cooling,': [375], 'corresponding': [376], 'interconversion': [378, 2257], 'structure': [380, 518, 786, 809, 1135, 1301, 1448, 2254, 2273, 2577, 2733, 2757], 'isomers': [381], 'different': [383, 874], 'properties.': [385, 622], 'Such': [386, 559], 'electronic': [387, 471, 565, 600, 1583, 2272, 2576, 2601, 2732], 'properties': [388, 575, 683, 2141], 'can': [389, 669, 837, 869, 1056, 1941, 2079], 'be': [390, 870, 1057, 1627, 1691, 1942, 2080, 2426], 'rationalized': [391], 'as': [392, 425, 491, 603, 1160, 1184, 1443, 1777, 1841, 1879, 2214, 2450, 2584, 4234], 'response': [394], 'structural': [396, 649, 2290, 2379, 2528], 'changes': [397, 560, 2730], 'external': [399, 693], 'thermal': [400, 2700, 2810], 'stimuli,': [401], 'accompanied': [402], 'subtle': [405], 'balance': [406], 'types': [409], 'intramolecular': [411, 437, 2056, 2309, 2752], 'interactions': [413, 2743, 2918], 'between': [414, 2258, 2591, 2636, 2900, 4107, 4759], 'four-site': [415], 'spin': [416, 1236, 1806, 2639, 2912], 'centers.': [417], 'The': [418, 535, 736, 1232, 1676, 1796, 1857, 1936, 1956, 1986, 2049, 2061, 2111, 2717, 2887, 2981, 2989, 4459], 'results': [419, 1274, 2572], 'provide': [420], 'novel': [422, 715], 'organic': [423, 476, 577, 707], 'polyradicaloid': [424], 'unprecedented': [427, 2696], 'example': [428, 2400], 'functional': [431, 1569], 'material': [432, 2712], 'potential': [435, 1783, 2271], 'switching.': [439], 'Download': [440, 442, 899, 901, 1116, 1118, 1329, 1331, 1792, 1794, 2128, 2130, 2316, 2318], 'figure': [441, 900, 1117, 1330, 1793, 2129, 2317], 'PowerPoint': [443, 902, 1119, 1332, 1795, 2131, 2319], 'Introduction': [444], 'Quinoidal-conjugated': [445], 'compounds': [446, 465, 1729, 2945], 'have': [447, 627, 1202, 2169, 2193, 2649], 'attracted': [448], 'considerable': [449], 'interest': [450], 'context': [453], 'research': [455, 462], 'diradicaloids': [458], 'polyradicaloids,': [460], 'these': [464, 480], 'elucidated': [467], 'wealth': [469], 'characteristics': [472], 'promisingly': [473], 'applicable': [474], 'electronics.1–4': [477], 'Motivated': [478], 'findings,': [481], 'incorporation': [482], 'quinoidal': [484, 504, 528, 552, 587, 653, 747, 888, 1278, 2671], 'substructures': [485, 553], 'into': [486, 554, 2136, 2673, 2805], 'π-system': [488], 'evolved': [490, 564], 'important': [493], 'strategy': [494, 505], 'toward': [495], 'molecules': [496], 'containing': [497], 'weakly': [498], 'paired': [499], 'or': [500, 655, 676, 687, 945, 2782, 3773], 'unpaired': [501, 2220, 2909], 'π-electrons.5–7': [502], 'This': [503, 1017, 1651, 2391, 2454, 2618], 'represents': [506, 2330], 'simple': [508], 'approach': [509], 'tuning': [511], 'typical': [513, 1366, 1962], 'molecule': [514, 673, 836], 'closed-shell': [517, 850, 2399], 'radicaloid,': [522], 'exemplified': [523], 'indenofluorenes,8–11': [525], 'bisphenalenyls,12,13': [526], 'zethrenes,14–18': [527], 'rylenes,19–22': [529], 'conjugated': [530, 590, 656, 2224], 'macrocycles,23–30': [531], 'other': [533], 'motifs.31–39': [534], 'generation': [536], 'radical': [539], 'character': [540, 606, 1206, 1214, 1392, 1519, 1646, 2482, 2925], 'involves': [541], 'spatial': [542, 2216], 'reorganization': [543], 'frontier': [545], 'π': [546, 5156], 'electrons,': [547, 2221], 'derived': [548], 'from': [549, 848, 1356, 1585, 1694, 1746, 1868, 1882, 1918, 1968, 2022, 2802], 're-aromatization': [550], 'aromatic': [555, 841, 881, 1288, 1378, 1461, 1518, 2676, 2924], 'diradical/polyradical': [556], 'structures.40': [558], 'are': [561, 616, 643, 700, 727, 769, 1361, 1465, 2015, 2113, 2205, 2748], 'referred': [562], 'structures,': [566], 'accordingly': [568], 'imparts': [569], 'particularly': [570], 'interesting': [571], 'optoelectronic': [572], 'materials.1–7': [578], 'For': [579, 2431], 'irreversible': [581], 'radicaloid': [583, 625], 'structure,': [588, 1191, 1386, 2662], 'its': [589, 760, 1133, 1637, 2084, 2755], 'length19–22': [591], 'topology41–48': [593], 'play': [594], 'significant': [596, 1373, 1838], 'role': [597], 'determining': [599], 'parameters': [601, 664, 2196], 'such': [602, 2212], 'diradical': [605, 855, 867, 1205, 1318, 1438], 'index': [607], '(y0)': [608], 'singlet-to-triplet': [611, 2050], 'energy': [612, 1199, 1686, 1707, 1717, 2091, 2363, 2795, 2812, 5221], 'gap': [613, 1708, 1718, 2051], '(ΔES-T),': [614], 'closely': [617], 'associated': [618, 1581], 'observable': [620], 'Previously': [623], 'reported': [624, 755], 'examples': [626], 'revealed': [628], 'approaches': [629], 'rational': [631], 'modulation': [632, 2624], 'parameters,': [634], 'is,': [636, 1402, 2029], 'tunable': [637], 'y': [638], 'ΔES-T': [640, 1995, 2019, 2030, 2036, 2122, 2198], 'values,49': [641], 'nevertheless': [644], 'relied': [645], 'alteration': [650], 'either': [652], 'cores5–7': [654], 'modes.50,51': [657], 'In': [658, 763, 790, 2249, 2683], 'addition,': [659, 791], 'fine-tuning': [660], 'above': [663, 2833], 'molecular': [667, 1141, 1345, 1397, 1588, 1594, 1679, 1683], 'species': [668], 'lead': [670], 'more': [677, 688, 840, 873, 2134, 2345, 2556], 'accessible': [678], 'states.': [680], 'Thus,': [681], 'exist': [684], 'interchangeable': [689], 'phases52–55': [690], 'modulated': [691], 'stimuli': [694], '(temperature,': [695], 'pressure,': [696], 'light,': [697], 'etc.),': [698], 'highly': [701], 'desirable': [702], 'development': [705], 'switching': [709, 2244, 2715], 'materials.': [710], 'Herein,': [711], 'we': [712, 2150], 'TBCP;': [719], 'Figure': [720, 883, 1051, 1173, 1271, 1296, 1488, 1600, 1633, 1721, 1829, 1855, 2010, 2093, 2188, 2283, 2285, 2389, 2467, 2475, 2931, 2949, 2962], '1),': [721], 'four': [724, 795, 1241, 1260, 1352], 'benzene': [725, 1262], 'rings': [726, 1263, 2893, 2920], 'diagonally': [728], 'fused': [729], 'onto': [730], 'unit.': [735], 'large': [737, 1204], 'π-core': [738], 'PQ': [739, 889, 1245, 1279, 1341, 1472], 'contains': [740], '24': [741, 1088], 'sp2-hybridized': [742], 'π-electrons': [743], 'fully': [746, 2267, 2670], 'character,': [748], 'been': [751], 'π-systems,': [756], 'probably': [757], 'due': [758, 2087, 2847, 2863, 2896], 'high': [761, 1283, 2809], 'reactivity.': [762], 'this': [764, 2250], 'regard,': [765, 2251], 'bulky': [766, 1039, 2348], 'aryl': [767, 938, 1091], 'groups': [768, 797, 2350], 'attached': [770], 'kinetically': [772], 'block': [773], 'most': [775, 2332], 'reactive': [776], 'sites,': [777], 'they': [779, 2209], 'also': [780, 817], 'result': [781], 'rigid': [784, 2346], '[4]helicene': [785], 'at': [787, 798, 843, 998, 1128, 1180, 1197, 1505, 1554, 1564, 1610, 1660, 1670, 1864, 1890, 1910, 2154, 2180, 2324, 2351, 2358, 2382, 2507, 2609, 2758, 2822, 2872, 4049, 4156], 'cove-regions.': [789, 2352], 'existence': [793], 'alkoxy': [796, 2906], 'bay-regions': [801, 2508, 2760], 'further': [802, 1466], 'leads': [803], 'ultimately': [806], 'resulting': [812, 2498], 'TBCP.': [813, 915, 1328], 'Molecular': [814, 3056, 4158, 4267], 'shape': [815], 'distortion': [816], 'creates': [818], 'favorable': [820], 'steric': [821, 1034, 2505], 'environment': [822], 'π-radical': [824], 'protection.43–45': [825], 'Due': [826], 'pro-aromatic': [829], 'nature': [830], 'PQ,': [832], 'desired': [834, 986], 'gain': [838, 2133], 'sextets': [842], 'each': [844], 'stage': [845], 'transition': [847, 2236, 2299, 2371, 2765], 'form,': [856], 'then': [858, 2276], 'tetraradical': [861, 1213], '(Figure': [863, 1399, 1452, 1541, 1649, 1850, 2041, 2278, 2645], '1).': [864], 'Besides,': [865], 'drawn': [871], 'forms': [876], 'but': [877, 3551], 'less': [879, 2339], 'localized': [880], 'sextets.': [882], '1': [884, 907, 1072, 2464, 2484, 2516, 2550, 2567], '|': [885, 1073, 1298, 1723, 2095, 2287], 'Structure': [886, 3901], 'representative': [891], 'PQ-core.': [898], 'Results': [903], 'Discussion': [905], 'Scheme': [906, 1071], 'depicts': [908], 'synthetic': [910], 'route': [911, 1075], 'compound': [914, 929, 1054, 1562], 'Suzuki': [916], 'coupling': [917, 2058], 'starting': [919], 'materials': [920], '156': [921], '4.8': [923], 'equiv': [924], '2-formylbenzeneboronic': [926], 'acid': [927], 'afforded': [928], '2': [930, 936, 1082, 1098, 1297], '87%': [932], 'yield.': [933, 990], 'Treatment': [934], 'magnesium': [939, 1092], 'bromide': [940], '[ArMgBr,': [941], 'Ar': [942], '=': [943, 1208, 1216, 1405, 1411, 1417, 1423, 1430, 1824, 2032, 2038, 2365, 2441, 2487, 2494, 2541], 'mesityl': [944, 1040], '3,5-bis(trifluoromethyl)phenyl],': [946], 'quantitatively': [947], 'gave': [948], 'tetraol': [949], '3a/': [950], '3b,': [951], 'was': [953, 1193, 1624, 1784, 1802, 1844, 2238, 2266, 2275, 2409, 2422, 2785, 2839], 'subsequently': [954], 'subjected': [955], 'BF3·Et2O-mediated': [957], 'Friedel–Crafts': [958], 'alkylation': [959], 'produce': [961], 'tetrahydro': [962, 1011], '4a/': [963], '4b': [964, 978, 1047, 1563, 1730], 'overall': [967], 'yield': [968], '71%': [970], '73%,': [972], 'respectively.': [973, 1186, 1675], 'Finally,': [974], 'oxidative': [975, 1027], 'dehydrogenation': [976], '2,3-dichloro-5,6-dicyano-1,4-benzoquinone': [980], '(DDQ)': [981], 'toluene': [983], 'provided': [984, 1037], '67%': [989], 'However,': [991, 1873], 'similar': [993, 2194, 2393], 'reaction': [994, 1015], '4a,': [996], 'even': [997], 'elevated': [999], 'temperature,': [1000], 'had': [1001, 1247], 'scarce': [1003], 'amount': [1004], 'product,': [1007], 'lots': [1009], '4a': [1012, 1020, 1851], 'mixture.': [1016], 'suggests': [1018, 2066], 'rather': [1023], 'low': [1024, 1865], 'reactivity': [1025], 'dehydrogenation,': [1028], 'likely': [1029, 2239, 2597], 'owing': [1030], 'larger': [1033], 'hindrance': [1035], 'effect': [1036], 'groups,': [1041], 'compared': [1042, 2343], '3,5-bis(trifluoromethyl)phenyl-substituted': [1046], 'Supporting': [1049, 1171, 1269, 1598, 1631, 1827, 1853, 1984, 2008, 2186, 2281, 2387, 2929, 2933, 2935, 2947, 2960, 2972], 'Information': [1050, 1172, 1270, 1599, 1632, 1828, 1854, 2009, 2187, 2282, 2388, 2930, 2934, 2936, 2948, 2961, 2973, 5209], 'S2).': [1052], 'Notably,': [1053, 2520], 'purified': [1058], 'routine': [1060], 'silica': [1061], 'gel': [1062], 'column': [1063], 'is': [1065, 1440, 1580, 1861, 1924, 1933, 1948, 2052, 2123, 2392, 2448, 2455, 2581, 2619, 2937], 'very': [1066, 1531, 2016], 'stable': [1067, 2654], 'under': [1068, 1616], 'ambient': [1069], 'conditions.': [1070], 'Synthetic': [1074], 'TBCP:': [1077, 2485, 2492], '(a)': [1078, 1305, 1724, 2102], '(2-formylphenyl)boronic': [1079], 'acid,': [1080], 'Pd(PPh3)4,': [1081], 'M': [1083, 1775], 'K2CO3,': [1084], 'toluene,': [1085, 1111], '80': [1086, 1112], '°C,': [1087, 1113], 'h;': [1089, 1099, 1106], '(b)': [1090, 1751, 2105], 'bromide,': [1093], 'dry': [1094, 1102, 1110], 'tetrahydrofuran': [1095], '(THF),': [1096], 'r.t.,': [1097, 1104], '(c)': [1100, 2301], 'BF3·Et2O,': [1101], 'DCM,': [1103, 1741], '3': [1105, 1722, 2472, 2491, 2518, 2552, 2569], '(d)': [1108, 2306], 'DDQ,': [1109], '18': [1114], 'h.': [1115], 'diffraction': [1121], 'data': [1122, 2112, 2942, 2970], 'crystals': [1125], 'were': [1126, 1182, 1688, 1771, 2778, 2858, 2879, 2894], 'collected': [1127], 'about': [1129, 2873], '150': [1130], 'K,': [1131, 1884, 1892, 1897, 1929, 1972, 2835, 2862, 2875], 'clearly': [1136, 1835], 'disclosed': [1137], 'backbone,': [1142, 1346], 'composed': [1143], 'double': [1146, 1368], 'helicene-like': [1147], 'relative': [1149, 1951, 2173], 'cove-': [1151], 'bay-areas': [1153], '(Figures': [1154, 1520], '2a': [1155], '2b).': [1157], 'existed': [1159], 'conformers': [1162], '(M,P,M,P)-': [1164, 2259, 2328, 2803], '(P,M,P,M)-enantiomersa': [1166], 'crystal': [1169, 1190], 'S1),': [1174], 'average': [1177], 'torsion': [1178, 2178, 2510, 2561], 'angles': [1179, 2179], 'bay-/cove-regions': [1181], 'estimated': [1183, 1625, 2424], '47.5°/34.9°,': [1185], 'Based': [1187, 3859], 'calculated': [1194, 1233, 1313, 1476], '(DFT': [1195], 'method': [1196], 'UCAM-B3LYP/6-31G(d,p)': [1198, 2156], 'level)': [1200], '(y0': [1207], '0.72)': [1209], 'moderate': [1212], '(y1': [1215], '0.11),': [1217], 'according': [1218, 2818], 'Yamaguchi': [1221], 'indices': [1222], 'occupation': [1225], 'numbers': [1226], 'unoccupied': [1229, 1593, 1682], 'natural': [1230], 'orbitals.57': [1231], 'Mulliken': [1234], 'atomic': [1235], 'densities': [1237], 'showed': [1238, 1836], 'exo-methylene': [1242, 1353], 'carbons': [1243], 'core': [1246, 1280, 1342, 2672], 'equivalent': [1249], 'distribution': [1250, 2217], 'largest': [1253, 1507], 'amplitudes;': [1254], 'contrast,': [1256], 'atoms': [1258], 'outer-annulated': [1261], 'exhibited': [1264, 1817], 'much': [1265], 'smaller': [1266], 'amplitudes': [1267], 'S3).': [1272, 2977], 'These': [1273, 1464, 2012, 2571], 'suggest': [1275], 'tendency': [1284, 1457, 2666], 'become': [1286, 1459], 'perylene': [1289, 1462, 2677], 'moiety': [1290, 1473, 2644, 2678], 'di-/tetraradical': [1294], 'character.': [1295, 2453], '(M,P,M,P)-TBCP': [1303], '(b),': [1307, 2297], 'selected': [1309], 'bond': [1310, 1388, 1403, 1409, 1415, 1421, 1428, 2175, 2437, 2533, 2539, 2889, 2904], 'length': [1311, 1334, 2438, 2534], 'HOMA': [1314], 'valuesd': [1315], '(c);': [1316], '(d);': [1321], 'ACID': [1323], 'plot': [1324], '(e)': [1325], 'Bond': [1333], 'reveals': [1336, 1642], 'remarkable': [1337], 'features': [1338], 'including:': [1347], '(1)': [1348], 'lengths': [1350, 1389, 2176, 2890], 'bonds,': [1354], 'ranging': [1355, 1745, 1867], '1.448': [1357], '1.476': [1359], 'Å,': [1360], 'longer': [1362, 2841], 'than': [1363], 'those': [1364, 2460], 'C(sp2)–C(sp2)': [1367], 'bonds': [1369], '(1.33–1.34': [1370], 'Å),': [1371, 1408, 1414, 1420, 1426, 1433, 2497], 'implying': [1372], 'contributions': [1374], 'forms;': [1380], '(2)': [1381], 'without': [1382], 'considering': [1383, 2207], 'exhibit': [1390, 1960], 'symmetric': [1391], 'along': [1393], 'central': [1396, 2532], 'axis': [1398], '2c),': [1400], 'a′': [1406], '(1.476': [1407], 'b': [1410, 2828], 'b′': [1412], '(1.359': [1413], 'c': [1416, 2855], 'c′': [1418], '(1.436': [1419], 'd': [1422, 2886], 'd′': [1424], '(1.362': [1425], 'e': [1429], 'e′': [1431], '(1.448': [1432], 'suggesting': [1434], 'ground-state': [1437], 'best': [1441], 'described': [1442, 2583], 'TBCP-FA': [1449], 'TBCP-FB': [1451], '2d),': [1453], 'greater': [1456], 'moiety.': [1463], 'supported': [1467], 'entirely': [1470, 2675], 'aromatized': [1471], 'harmonic': [1477], 'oscillator': [1478], 'model': [1479, 1979], 'aromaticity': [1481], '(HOMA)58,59': [1482], 'values': [1483, 2014, 2020], '0.61–0.63': [1485], '(rings': [1486], 'A/A′–B/B′,': [1487], '2c).': [1489], 'Interestingly,': [1490], 'anisotropy': [1492], 'induced': [1494, 2729], 'current': [1495, 1504], 'density': [1496, 1568], '(ACID)': [1497], 'plot60': [1498], 'discloses': [1499], 'clockwise': [1501], 'diatropic': [1502], 'ring': [1503, 1509, 1513], 'distorted': [1508], '(torsion': [1510], 'angle': [1511], 'C:': [1514], '∼34.2°),': [1515], 'indicating': [1516, 2376, 2709], '2b': [1521], '2e).': [1523], 'Compound': [1524], 'dichloromethane': [1527], '(DCM)': [1528], 'broad': [1532], 'absorption': [1533, 1547, 1552, 1576, 1608, 1726, 1744], 'band,': [1534], 'tail': [1537], 'extending': [1538], '1028': [1539], 'nm': [1540, 1612], '3a).': [1542], 'It': [1543, 1701, 1816], 'exhibits': [1544, 2695], 'red-shifted': [1546], 'pattern': [1548], 'long-wavelength': [1551], 'maximum': [1553, 1909], '686': [1555, 1611], 'nm,': [1556, 1618], 'comparison': [1558], '475': [1565], 'nm.': [1566], 'Time-dependent': [1567], 'theory': [1570], '(DFT)': [1571], 'calculations': [1572, 2153, 2723, 2821], 'behavior': [1577], 'transitions': [1584, 2698], 'singly': [1586, 1592], 'occupied': [1587, 1678], 'orbitals': [1589, 1595], '(SOMO)': [1590], '(SUMO)': [1596], 'S4': [1601], 'Table': [1603], 'S1).': [1604], 'By': [1605], 'plotting': [1606], 'intensity': [1609, 1860, 1876, 2838], 'light-irradiation': [1614], 'time': [1615, 2844, 2883], '365': [1617], 'half-life': [1620], '(t1/2)': [1621], '187': [1628], 'days': [1629], 'S5),': [1634], 'indicative': [1635], 'excellent': [1638], 'photostability.': [1639], 'Cyclic': [1640, 1752], 'voltammetry': [1641], 'amphoteric': [1644], 'redox': [1645, 1769, 1790], '3b).': [1650], 'reversible': [1654], 'reduction': [1655], 'waves': [1656, 1669], 'half-wave': [1658], 'potentials': [1659, 1770], '−1.06/−1.29': [1661], 'V': [1662, 1672], '(vs': [1663, 1673], 'Fc+/Fc),': [1664, 1674], 'reversible/quasi-reversible': [1667], 'oxidation': [1668], '0.52/0.92': [1671], 'highest': [1677], 'orbital': [1680, 1684], '(HOMO)/lowest': [1681], '(LUMO)': [1685], 'levels': [1687], 'determined': [1689, 1772, 2021], '−5.23/−3.85': [1692], 'eV,': [1693, 1711], 'onset': [1696, 1715], 'first': [1699], 'oxidation/reduction.': [1700], 'thus': [1702, 1974, 2737, 2915], 'small': [1705, 2090], 'electrochemical': [1706], '1.38': [1710], 'comparable': [1712], 'optical': [1716], '(1.44': [1719], 'eV).': [1720], 'Electronic': [1725, 3045, 3080, 5102], 'spectra': [1727], 'DCM': [1734, 1766], '(insert:': [1735], 'photographs': [1736], 'their': [1738], 'solutions': [1739], 'amplified': [1743], '850': [1747], '1050': [1749], 'nm).': [1750], 'voltammogram': [1753, 1759], '(black': [1754], 'curve)': [1755, 1761], 'differential': [1757], 'pulse': [1758], '(blue': [1760], 'solution': [1764], '(1.0': [1767], 'mM),': [1768], 'using': [1773], '0.1': [1774], 'n-Bu4N+PF6−': [1776], 'supporting': [1779], 'electrolyte;': [1780], 'electrode': [1782], 'externally': [1785], 'calibrated': [1786], 'ferrocene/ferrocenium': [1789], 'couple.': [1791], 'property': [1798], 'investigated': [1803], 'electron': [1805, 2589, 2901], '(ESR)': [1808], 'superconducting': [1810], 'quantum': [1811], 'interference': [1812], 'device': [1813], '(SQUID)': [1814], 'measurements.': [1815], 'intense': [1819], 'one-line': [1820], 'signal': [1821, 1875, 1954, 2837], 'ge': [1823], '2.0027': [1825], 'S6).': [1830], 'Variable-temperature': [1831], 'ESR': [1832, 1859, 1958, 2100], '(VT-ESR)': [1833], 'loop': [1840], 'sample': [1843, 2108, 2871], 'heated': [1845], 'cooled': [1847], 'back': [1848], 'down': [1849], 'S7–S11).': [1856], 'integrated': [1858, 2099], 'almost': [1862], 'unchanged': [1863], 'temperatures': [1866], '103': [1869, 1969], '243': [1871, 1883], 'K.': [1872, 3447, 4518, 5113, 5144], 'suddenly': [1877], 'increases': [1878], 'temperature': [1880, 1916, 2414, 2831], 'rise': [1881, 2627], 'up': [1885, 1906], 'steady': [1888], 'state': [1889, 1967, 2071, 2086, 2168, 2237, 2300, 2372], '323': [1891, 1928, 1971], 'becoming': [1893], 'persistent': [1894, 1926, 2606], '383': [1896], 'another': [1900, 2525], 'sharp': [1901, 2457], 'increase': [1902], 'continuous': [1904], '413': [1911, 1919], 'K.b': [1912], 'Strikingly,': [1913], 'when': [1914], 'decreases': [1917], 'K': [1920, 2614], 'back,': [1921], 'curve': [1923, 1987], 'thermally': [1925, 1963, 2081, 2728], 'observed': [1934, 2246, 2410, 2605], 'instead.': [1935], 'cooling': [1939, 2005, 2076, 2148, 2616, 2707], 'cycles': [1940], 'repeated': [1943], 'several': [1944], 'times,': [1945], 'there': [1947], 'little': [1949], 'change': [1950, 2274, 2380], 'loop.': [1955], 'experimental': [1957], 'intensities': [1959, 2101], 'populated': [1964], 'excited': [1965, 2082], 'triplet': [1966, 2085, 2296, 2470], 'fit': [1975], 'simplified': [1977, 2117], 'tetrameric': [1978, 2047, 2118], '(see': [1980], 'details': [1981, 2951, 2958], 'Information).61': [1985], 'fitting': [1988], 'process': [1992, 2006], 'yields': [1993], 'value': [1996], '−4.2': [1998], 'kcal/mol,': [1999], '−3.7': [2001], 'kcal/mol': [2002, 2034, 2040], 'S8).': [2011], 'close': [2017], 'temperature-dependent': [2024, 2718], 'susceptibility': [2026], 'measurements,c': [2027], '(heating)': [2031], '−4.1': [2033], '(cooling)': [2037], '−3.5': [2039], '4b)': [2042], 'same': [2046, 2403], 'model.': [2048], 'equal': [2053], 'exchange': [2057, 2310], 'constant': [2059, 2842], '(2Jex).62,63': [2060], 'negative': [2062], 'interaction': [2064, 2634], 'Jex': [2065], 'ground': [2070, 2681], 'both': [2073, 2181], 'phases,': [2077], 'gap.': [2092], '4': [2094], 'Temperature-dependent': [2096], 'plots': [2097], 'χMT': [2104], 'powders.': [2110], 'fitted': [2114], 'model,': [2119], 'correlated': [2124], '2J.': [2127], 'To': [2132], 'insight': [2135], 'factors': [2138, 2213], 'affecting': [2139], 'cycle,': [2149], 'performed': [2151], 'level': [2157, 2825], 'theory.': [2159, 2827], 'enantiomers': [2161, 2192, 2231, 2772], 'optimized': [2164, 2303], 'singlet/triplet': [2165], '(OS/OT)': [2166], 'scarcely': [2170], 'any': [2171], 'differences': [2172, 2291], 'bay-': [2182], 'cove-regions': [2184, 2559], 'S12).': [2189], 'Therefore,': [2190], '(−5.6': [2199], 'kcal/mol)': [2200, 2367, 2798], 'y0': [2202], '(∼0.59),': [2203], 'reasonable': [2206], 'depend': [2210], 'aromaticity,': [2215], 'pattern.23–30,50,51,61': [2225], 'After': [2226], 'heating,': [2227, 2735], 'mutual': [2228], 'conversion': [2229], 'achieve': [2233], 'metastable': [2235, 2764], 'responsible': [2240, 2621], 'performance': [2245], 'experiments.': [2248], 'transition-state': [2253], '(P,P,P,P)-': [2262, 2783, 2806], 'optimized,': [2268], 'examined': [2277], '5': [2279, 2286], 'S13).': [2284], 'Illustration': [2288], 'open-shelled': [2293], '(a),': [2295], '(M,P,M,P)-TBCP,': [2304], 'graph': [2307], 'couplings': [2311], 'π-backbone.': [2315], 'Thermal': [2320], 'isomerization': [2321, 2408, 2753], 'atropisomers': [2323], 'bay-region': [2326, 2359], 'plausible': [2333], 'inversion': [2334, 2357], 'pathway': [2335], 'because': [2336, 2791], 'congested': [2340], 'n-butoxy': [2341], 'substituents': [2342], '3,5-trifluoromethylphenyl': [2349], 'Calculations': [2353], 'requires': [2360], 'activation': [2362, 2811], '(ΔG#': [2364], '34.2': [2366], 'reach': [2369, 2762], 'TBCP-': [2374, 2432, 2522, 2579], 'TS),': [2375], 'occurs': [2381], 'high-temperature': [2384, 2611], 'phase': [2385, 2612, 2697], 'S14).': [2390], 'our': [2397], 'previous': [2398], 'bay-decorations,64': [2404], 'where': [2405], 'slow': [2407, 2600], 'below': [2411, 2860], 'coalescence': [2413], '(around': [2415], '343': [2416], 'K),': [2417], 'activated': [2420], 'enthalpy': [2421], 'experimentally': [2423], '34.6': [2427], '±': [2428], '0.4': [2429], 'kcal/mol.': [2430], 'TS,': [2433], 'prolonged': [2435], 'bridging': [2436], '(i.e.,': [2439, 2538], 'd/d′': [2440, 2486, 2493], '1.481/1.496': [2442], 'Å)': [2443], 'fluoreno[1,2-a]fluorene': [2446, 2536], 'moieties': [2447], 'considered': [2449], 'single-bond': [2452], 'contrast': [2458], '5a)': [2468], '5b)': [2476], 'partial': [2480], 'double-bond': [2481], '1.429': [2488], 'Å/1.428': [2489], 'Å;': [2490], '1.397': [2495], 'Å/1.446': [2496], 'great': [2501], 'release': [2502], 'strain': [2506], '(average': [2509, 2560], 'angle:': [2511, 2562], '16.1°': [2512], 'vs': [2513, 2545, 2564], '34.8°/34.8°': [2514], 'TBCP/': [2517, 2551, 2568], 'TBCP).': [2519, 2570], 'TS': [2523, 2580], 'encompasses': [2524], 'type': [2526], 'change:': [2529], 'compressed': [2531], 'unit': [2537], 'h/h′': [2540], '1.417': [2542], 'Å/1.427': [2543], 'Å': [2544, 2548], '1.431': [2546], 'Å/1.439∼1.440': [2547], 'leading': [2554], 'crowdedness': [2557], '44.6°': [2563], '42.1°/42.4°': [2565], 'better': [2582], 'bis(fluoreno[1,2-a]fluorene)': [2585], 'π-backbone': [2586], 'weakening': [2588], 'communication': [2590], 'fluoreno[1,2-a]': [2593, 2642], 'fluorene': [2594, 2643], 'units,': [2595], 'relaxation,': [2602], 'consistent': [2603], 'signals': [2608], '(413–323': [2613], 'phase).': [2617], 'mainly': [2620, 2749], 'gives': [2626], 'appearance': [2630], 'additional': [2632, 2965], '(J′ex)': [2635], 'centers': [2640], '5d).': [2646], 'Conclusion': [2647], 'synthesized': [2650], 'characterized': [2652], 'PQ-based': [2655], 'recover': [2668], 'state.': [2682, 2766], 'particular,': [2684], 'spectroscopy': [2686], 'studies': [2687], 'loops': [2702], 'cycles,': [2708], 'capability.': [2716], 'SQUID': [2719, 2856], 'disclose': [2724], 'presence': [2726], 'during': [2734], 'alter': [2738], 'mode': [2740], 'electron-exchange': [2742], 'within': [2744], 'molecule,': [2746], 'caused': [2750], 'Footnotes': [2767], 'Attempts': [2769], 'separate': [2771], 'various': [2774], 'chiral': [2775], 'HPLC': [2776], 'columns': [2777], 'not': [2779], 'successful.': [2780], '(M,M,M,M)-': [2781], 'absent': [2786], 'crystal,': [2789], 'possibly': [2790], 'intrinsic': [2794], 'barrier': [2796], '(∼5.20': [2797], 'diastereoisomer': [2800], 'transformation': [2801, 2815], 'TBCP,': [2807], 'free': [2814], 'diastereoisomers,': [2817], 'UCAMB3LYP/6-31G(d,p)': [2824], 'When': [2829, 2868], 'increased': [2832], '433': [2834], 'no': [2840, 2984], '(∼1': [2845], 'h),': [2846], 'slight': [2850], 'decomposition': [2851], 'sample.': [2854], 'conducted': [2859], '400': [2861], 'faculty': [2866], 'limit.': [2867], '385': [2874], 'susceptibilities': [2878], 'kept': [2880], 'increasing': [2881], '(∼0.5': [2884], 'h).': [2885], 'five-membered': [2892], 'observed,': [2895], 'electrostatic': [2898], 'attraction': [2899], 'positive': [2902], 'C–H': [2903], 'chain': [2907], 'electrons': [2910], 'centers,': [2913], 'intermolecular': [2916], '[C–H•••C]': [2917], 'render': [2919], 'A/A′': [2921], 'weak': [2923], '(HOMA:': [2926], '0.28)': [2927], 'S16).': [2932], 'available': [2938], 'includes': [2940], 'characterization': [2941], 'new': [2944], 'S17–S28),': [2950], 'all': [2953], 'physical': [2954], 'characterizations': [2955], 'computational': [2957], 'S12–S15),': [2963], 'spectroscopic': [2966], 'Tables': [2974], 'S2': [2975], 'Conflicts': [2978], 'Interest': [2980], 'authors': [2982, 2990, 5223], 'declare': [2983], 'conflict': [2985], 'interest.': [2987], 'Acknowledgments': [2988], 'thank': [2991, 5224], 'Natural': [2994, 5227], 'Foundation': [2996, 5229], 'China': [2998, 5231], '(nos.': [2999, 5232], '51922039': [3000, 5233], '21671003),': [3002, 5235], 'Technology': [3006, 3020, 5239, 5253], 'Innovation': [3007, 3021, 5240, 5254], 'Program': [3008, 5241], 'Province': [3011, 5244], '(no.': [3012, 5245], '2020RC5033),': [3013, 5246], 'Shenzhen': [3016, 5249], 'Outstanding': [3017, 5250], 'Talent': [3022, 5255], 'Cultivation': [3023, 5256], 'Project': [3024, 5257], 'financial': [3026, 5259], 'support.': [3027, 5260], 'References': [3028], '1.': [3029], 'Casado': [3030, 3177, 3598, 3652, 3699, 3805, 4095, 4226, 4803, 4850, 4890], 'J.;': [3031, 3178, 3274, 3470, 3514, 3538, 3597, 3599, 3651, 3653, 3698, 3700, 3744, 3806, 3808, 3850, 3888, 3927, 3964, 4036, 4079, 4096, 4218, 4227, 4261, 4294, 4300, 4319, 4326, 4335, 4371, 4453, 4508, 4510, 4602, 4673, 4690, 4783, 4800, 4804, 4827, 4844, 4851, 4876, 4882, 4889, 4922, 4968, 4981, 4983, 5008, 5014, 5018, 5048, 5173], 'Ortiz': [3032, 4213], 'R.': [3033, 3579, 3640, 4093, 4214, 5119], 'P.;': [3034, 3407, 3456, 3507, 3802, 4215, 4280, 4433, 4443, 4479, 4569, 4700, 4879, 5142], 'López': [3035, 3173, 3592, 3644, 3693, 4080], 'Navarrete': [3036, 3174, 3593, 3645, 3694, 4081], 'J.': [3037, 3175, 3273, 3278, 3412, 3569, 3594, 3629, 3646, 3695, 3789, 4071, 4082, 4199, 4206, 4325, 4682, 4779, 4782, 4826, 4884, 5147], 'T.Quinoidal': [3038], 'Oligothiophenes:': [3039], 'New': [3040, 4573], 'Properties': [3041, 4812], 'Behind': [3042], 'Unconventional': [3044], 'Structure.Chem.': [3046], 'Soc.': [3047, 3137, 3191, 5120], 'Rev.2012,': [3048, 3138], '41,': [3049, 3139], '5672–5686.': [3050], 'Google': [3051, 3069, 3093, 3112, 3141, 3164, 3195, 3218, 3234, 3269, 3312, 3353, 3403, 3416, 3439, 3495, 3522, 3561, 3621, 3673, 3724, 3754, 3780, 3825, 3867, 3907, 3945, 3980, 4016, 4056, 4119, 4165, 4192, 4245, 4274, 4310, 4353, 4384, 4409, 4429, 4475, 4504, 4547, 4586, 4626, 4669, 4722, 4748, 4775, 4822, 4867, 4904, 4937, 4964, 5000, 5027, 5044, 5063, 5078, 5107, 5126, 5134, 5161, 5198], 'Scholar': [3052, 3070, 3094, 3113, 3142, 3165, 3196, 3219, 3235, 3270, 3313, 3354, 3404, 3417, 3440, 3496, 3523, 3562, 3622, 3674, 3725, 3755, 3781, 3826, 3868, 3908, 3946, 3981, 4017, 4057, 4120, 4166, 4193, 4246, 4275, 4311, 4354, 4385, 4410, 4430, 4476, 4505, 4548, 4587, 4627, 4670, 4723, 4749, 4776, 4823, 4868, 4905, 4938, 4965, 5001, 5028, 5045, 5064, 5079, 5108, 5127, 5135, 5162, 5199], '2.': [3053], 'Nakano': [3054, 3241, 3289, 3325, 3364, 3701, 4134, 4222, 4801, 4848, 5032], 'M.Open-Shell-Character-Based': [3055], 'Design': [3057, 4236], 'Principles:': [3058], 'Applications': [3059, 3081], 'Nonlinear': [3061], 'Optics': [3062], 'Singlet': [3064, 3156, 3345, 3392, 3430, 3488, 4422, 4539, 4614, 4815, 5037], 'Fission.Chem.': [3065], 'Rec.2017,': [3066], '17,': [3067], '27–62.': [3068], '3.': [3071], 'Hu': [3072, 3406, 3455, 3801, 4279, 4432, 4751, 5176], 'X.;': [3073, 3170, 3450, 3572, 3634, 3688, 3762, 3829, 3911, 4249, 4394, 4418, 4447, 4600, 4726, 4752, 4912, 4914, 4951, 5010], 'W.;': [3075, 3452, 3499, 3526, 3587, 3728, 3848, 3995, 4087, 4292, 4416, 4596, 5167], 'D.;': [3077, 3203, 3244, 3328, 3367, 3472, 3580, 3601, 3641, 3655, 3704, 3810, 3852, 3856, 3892, 3894, 3968, 3997, 4038, 4067, 4089, 4094, 4455, 4485, 4634, 4680, 4730, 4887, 4941, 5082], 'Zheng': [3078, 3453, 4757], 'Y.The': [3079], 'Stable': [3083, 3426, 3609, 4184, 4239, 4532, 4574, 4768, 4814], 'Diradicaloids:': [3084, 4402], 'Present': [3085], 'Future.J.': [3087], 'Mater.': [3088, 4770], 'Chem.': [3089, 3160, 3214, 3229, 3264, 3307, 3348, 3399, 3435, 3491, 3517, 3557, 3617, 3668, 3720, 3776, 3821, 3863, 3940, 4012, 4115, 4161, 4269, 4349, 4379, 4471, 4499, 4542, 4582, 4621, 4665, 4718, 4771, 4818, 4899, 4959, 5040], 'C2018,': [3090], '6,': [3091, 4865], '11232–11242.': [3092], '4.': [3095], 'C.;': [3097, 3120, 3172, 3464, 3591, 3649, 3758, 3871, 3923, 4298, 4390, 4553, 4557, 4559, 4561, 4567, 4604, 4696, 4786, 4830, 4908, 4943, 4970, 5171], 'Zhu': [3098, 3449, 3571, 3633, 3687], 'X.n-Type': [3099], 'Quinoidal': [3100, 3212], 'Oligothiophene-Based': [3101], 'Semiconductors': [3102, 3133], 'Thin-Film': [3104], 'Transistors': [3105], 'Thermoelectrics.Adv.': [3107], 'Funct.': [3108], 'Mater.2020,': [3109, 4997], '30,': [3110], '2000765.': [3111], '5.': [3114], 'Sun': [3115, 3144, 3419, 3442, 3500, 3635, 4978], 'Z.;': [3116, 3145, 3147, 3168, 3276, 3285, 3420, 3443, 3458, 3501, 3565, 3625, 3636, 3677, 3740, 3984, 4060, 4171, 4916, 4979], 'Ye': [3117], 'Q.;': [3118, 3690, 3921, 4278, 4445, 4734, 4947], 'Chi': [3119, 3171, 3463, 3590, 3648, 4297], 'J.Low': [3122], 'Band': [3123], 'Gap': [3124], 'Polycyclic': [3125, 4534, 4737], 'Hydrocarbons:': [3126, 4100, 4925], 'From': [3127], 'Closed-Shell': [3128, 4109], 'Near': [3129], 'Infrared': [3130], 'Dyes': [3131], 'Open-Shell': [3135, 3431, 3544, 4008, 4111, 4421, 4538, 4613], 'Radicals.Chem.': [3136], '7857–7889.': [3140], '6.': [3143], 'J.Zethrenes,': [3149], 'Extended': [3150, 3604], 'p-Quinodimethanes,': [3151], 'Periacenes': [3153], 'Biradical': [3157, 3346, 3393, 3478, 4579], 'Ground': [3158, 3432, 3614, 3662, 3714, 4102, 4540, 4615], 'State.Acc.': [3159], 'Res.2014,': [3161], '47,': [3162], '2582–2591.': [3163], '7.': [3166], 'Shi': [3169, 4446, 4605], 'T.;': [3176, 3248, 3316, 3332, 3359, 3371, 3533, 3595, 3647, 3696, 3843, 3954, 4027, 4034, 4083, 4282, 4481, 4638, 4791, 5016, 5031], 'J.Pro-Aromatic': [3180], 'Anti-Aromatic': [3182], 'π-Conjugated': [3183, 4265, 4303], 'Molecules:': [3184], 'An': [3185, 3225, 3480, 3543, 4000], 'Irresistible': [3186], 'Wish': [3187], 'Be': [3189], 'Diradicals.Chem.': [3190], 'Rev.2015,': [3192], '44,': [3193, 3351], '6578–6596.': [3194], '8.': [3197], 'Frederickson': [3198], 'C.': [3199, 4217, 4677, 4799, 4843, 4881, 5141], 'K.;': [3200, 3246, 3324, 3330, 3363, 3369, 3375, 3468, 3683, 4091, 4127, 4137, 4139, 4202, 4204, 4337, 4529, 4632, 4636, 4702, 5084, 5145], 'Rose': [3201], 'B.': [3202, 3582, 4074, 4840], 'Haley': [3204, 3294, 4228, 4805, 4852], 'M.': [3205, 3292, 3295, 3845, 3873, 3951, 4229, 4314, 4806, 4853, 4878, 5070], 'M.Explorations': [3206], 'Indenofluorenes': [3209], 'Expanded': [3211], 'Analogues.Acc.': [3213], 'Res.2017,': [3215], '50,': [3216, 3232], '977–987.': [3217], '9.': [3220], 'Shimizu': [3221, 3237, 3317, 3356], 'A.;': [3222, 3238, 3293, 3318, 3357, 3540, 3804, 3854, 3966, 4123, 4296, 4328, 4331, 4630, 4678, 4685, 5139], 'Tobe': [3223, 3253], 'Y.Indeno[2,1-a]fluorene:': [3224], 'Air-Stable': [3226], 'ortho-Quinodimethane': [3227], 'Derivative.Angew.': [3228], 'Int.': [3230, 3265, 3308, 3349, 3518, 3669, 3941, 4270, 4380, 4500, 4543, 4622, 4900, 4960], 'Ed.2011,': [3231], '6906–6910.': [3233], '10.': [3236], 'Kishi': [3239, 3280, 4130, 4787, 4831], 'R.;': [3240, 3281, 3466, 3585, 3643, 3692, 4069, 4131, 4315, 4333, 4527, 4590, 4698, 4788, 4832], 'M.;': [3242, 3252, 3290, 3320, 3322, 3326, 3361, 3365, 3567, 3575, 3632, 3681, 3686, 3702, 3793, 3795, 3797, 4063, 4077, 4135, 4223, 4483, 4487, 4489, 4512, 4565, 4694, 4802, 4838, 4849, 4871, 4874, 4885, 5068], 'Shiomi': [3243, 3327, 3366, 4633], 'Sato': [3245, 3329, 3368, 4635], 'Takui': [3247, 3331, 3370, 4637], 'Hisaki': [3249], 'I.;': [3250, 4209, 4683], 'Miyata': [3251], 'Y.Indeno[2,1-b]fluorene:': [3254], 'A': [3255, 4492, 4572], '20-π-Electron': [3256], 'Hydrocarbon': [3257, 4535, 4739, 4987], 'Very': [3259], 'Low': [3260], 'Energy': [3261, 4863], 'Light': [3262], 'Absorption.Angew.': [3263, 3667], 'Ed.2013,': [3266, 3670], '52,': [3267, 3671, 3778], '6076–6079.': [3268], '11.': [3271], 'Dressler': [3272, 4781, 4825], 'Zhou': [3275, 4969, 5013], 'Marshall': [3277, 4205], 'L.;': [3279, 3570, 3630, 3790, 3993, 4072, 4200, 4207, 4212, 4396, 4563, 4594], 'Takamuku': [3282], 'S.;': [3283, 3445, 3460, 3504, 3536, 3583, 3627, 3679, 3733, 3784, 3787, 3831, 3841, 3886, 3919, 3959, 4030, 4075, 4173, 4259, 4288, 4365, 4367, 4388, 4392, 4435, 4438, 4519, 4592, 4675, 4920, 4972, 4974, 5175], 'Wei': [3284, 4917, 5011], 'Spisak': [3286], 'S.': [3287, 4796], 'N.;': [3288, 3577, 3738, 3883, 4065, 4221, 4440, 4794, 4797, 4847], 'Petrukhina': [3291], 'M.Synthesis': [3296], 'Unknown': [3299], 'Indeno[1,2-a]fluorene': [3300], 'Regioisomer:': [3301], 'Crystallographic': [3302], 'Characterization': [3303, 4143, 4657], 'Its': [3305, 3937, 4345], 'Dianion.Angew.': [3306], 'Ed.2017,': [3309, 4271, 4544, 4901], '56,': [3310, 4272, 4545, 4902], '15363–15367.': [3311], '12.': [3314], 'Kubo': [3315, 3358, 4140], 'Sakamoto': [3319], 'Uruichi': [3321], 'Yakushi': [3323, 3362], 'Morita': [3333, 3378], 'Y.;': [3334, 3373, 3379, 3462, 3510, 3529, 3589, 3638, 3736, 3760, 3800, 3833, 3838, 3876, 3879, 3914, 3949, 3962, 3987, 3989, 3991, 4020, 4023, 4032, 4085, 4125, 4133, 4169, 4252, 4256, 4285, 4317, 4357, 4360, 4369, 4398, 4414, 4514, 4516, 4551, 4555, 4910, 4949, 4977, 5004, 5006, 5177, 5179], 'Nakasuji': [3335], 'K.Synthesis,': [3336], 'Intermolecular': [3337], 'Interaction,': [3338], 'Semiconductive': [3340], 'Behavior': [3341], 'Delocalized': [3344], 'Hydrocarbon.Angew.': [3347], 'Ed.2005,': [3350], '6564–6568.': [3352], '13.': [3355], 'Uruchi': [3360], 'Hirao': [3372, 4124], 'Matsumoto': [3374, 4126], 'Kurata': [3376, 4128], 'H.;': [3377, 3448, 3531, 3730, 3742, 3835, 3881, 3890, 3916, 3956, 4025, 4129, 4175, 4225, 4254, 4290, 4323, 4362, 4449, 4525, 4598, 4606, 4692, 4728, 4732, 4754, 4918, 4945, 5012], 'Nakatsuji': [3380], 'K.Alternating': [3381], 'Covalent': [3382], 'Bonding': [3383], 'Interactions': [3384, 4766], 'One-Dimensional': [3387], 'Chain': [3388, 3710], 'Phenalenyl-Based': [3391], 'Molecule': [3394, 3546], 'Having': [3395], 'Kekulé': [3396], 'Structures.J.': [3397], 'Am.': [3398, 3434, 3490, 3556, 3616, 3719, 3820, 3862, 4011, 4114, 4160, 4348, 4470, 4581, 4664, 4717, 4817], 'Soc.2010,': [3400], '132,': [3401], '14421–14428.': [3402], '14.': [3405], 'J.Modern': [3409], 'Zethrene': [3410], 'Chemistry.Can.': [3411], 'Chem.2017,': [3413], '95,': [3414], '223–233.': [3415], '15.': [3418], 'Huang': [3421, 3467, 3511, 4090, 4393, 4450, 5009], 'K-W.;': [3422, 4451], 'J.Soluble': [3424], 'Heptazethrenebis(dicarboximide)': [3427], 'State.J.': [3433], 'Soc.2011,': [3436], '133,': [3437], '11896–11899.': [3438], '16.': [3441], 'Lee': [3444, 3581, 3626, 3678, 3830, 4068, 4073, 4434], 'Park': [3446], 'B.;': [3454, 5111, 5165], 'Das': [3459, 3783], 'Kim': [3471, 3600, 3654, 3703, 3855, 3891, 4026, 4037, 4088, 4454], 'J.Dibenzoheptazethrene': [3474], 'Isomers': [3475], 'Different': [3477, 4050], 'Characters:': [3479], 'Exercise': [3481], "Clar's": [3483], 'Aromatic': [3484, 4738, 4986], 'Sextet': 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[4607], 'X.Stable': [4608], 'Diindeno-Fused': [4609], 'Regioisomers': [4611], 'Characters.Angew.': [4620], 'Ed.2019,': [4623], '58,': [4624], '7600–7605.': [4625], '46.': [4628], 'Horii': [4631], 'Yasuda': [4639], 'M.Open-Shell': [4640], 'Antiaromatic': [4642], 'Highly': [4647], 'Symmetric': [4648], 'Geometry': [4649], 'Planar': [4652], 'Heptalene': [4653], 'Structure:': [4654], 'Nonalternant': [4660], 'Bisanthene.J.': [4663], '10165–10170.': [4668], '47.': [4671], 'Mishra': [4674], 'Pignedoli': [4676], 'Passerone': [4679], 'Urgel': [4681], 'Fabrizio': [4684], 'Lohr': [4686], 'Corminboeuf': [4695], 'Ruffieux': [4699], 'Fasel': [4703], 'R.,': [4704], 'X.Open-Shell': [4706], 'Nonbenzenoid': [4707], 'Nanographenes': [4708], 'Containing': [4709], 'Two': [4710], 'Pairs': [4711], 'Pentagonal': [4713], 'Heptagonal': [4715], 'Rings.J.': [4716], '12011–12020.': [4721], '48.': [4724], 'Yu': [4731], 'He': [4733], 'D.A': [4736], 'pH-Responsive': [4742], 'Properties.Chem.': [4744], 'Sci.2020,': 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[4906], 'Bang': [4909], 'Lim': [4915], 'El-Hankari': [4919], "Z.Tetrabenzo-Chichibabin's": [4924], 'Substituent': [4926], 'Effects': [4927], 'Thermochromic': [4930], 'Thermomagnetic': [4932], 'Behaviours.Chem.': [4933], '2389–2392.': [4936], '54.': [4939], 'Tuo': [4940], 'Ruan': [4944], 'Ao': [4948], 'D.Magnetic': [4953], 'Multistability': [4954], 'Anion-Radical': [4957], 'Pimer.Angew.': [4958], 'Ed.2020,': [4961], '59,': [4962], '14040–14043.': [4963], '55.': [4966], 'Luo': [4973, 5168], 'Jouha': [4980], 'Z.Large': [4985], 'Cation': [4989], 'State-Associated': [4994], 'Activity.Chem.': [4996], '32,': [4998], '5927–5936.': [4999], '56.': [5002], 'Z.Bay-': [5020], 'Ortho-Octasubstituted': [5022], 'Perylenes.Org.': [5023], 'Lett.2017,': [5024], '19,': [5025], '5094–5097.': [5026], '57.': [5029], 'Minami': [5030], 'M.Diradical': [5033], 'View': [5035], 'Fission.J.': [5038], 'Phys.': [5039], 'Lett.2012,': [5041], '3,': [5042], '145–150.': [5043], '58.': [5046], 'Kruszewski': [5047], 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