Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W1973426724', 'doi': 'https://doi.org/10.1021/ja402371f', 'title': 'Pyrrole-Fused Azacoronene Family: The Influence of Replacement with Dialkoxybenzenes on the Optical and Electronic Properties in Neutral and Oxidized States', 'display_name': 'Pyrrole-Fused Azacoronene Family: The Influence of Replacement with Dialkoxybenzenes on the Optical and Electronic Properties in Neutral and Oxidized States', 'publication_year': 2013, 'publication_date': '2013-05-20', 'ids': {'openalex': 'https://openalex.org/W1973426724', 'doi': 'https://doi.org/10.1021/ja402371f', 'mag': '1973426724', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/23662671'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1021/ja402371f', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S111155417', 'display_name': 'Journal of the American Chemical Society', 'issn_l': '0002-7863', 'issn': ['0002-7863', '1520-5126', '1943-2984'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320006', 'host_organization_name': 'American Chemical Society', 'host_organization_lineage': ['https://openalex.org/P4310320006'], 'host_organization_lineage_names': ['American Chemical Society'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5010301939', 'display_name': 'Masayoshi Takase', 'orcid': 'https://orcid.org/0000-0002-9737-9779'}, 'institutions': [{'id': 'https://openalex.org/I69740276', 'display_name': 'Tokyo Metropolitan University', 'ror': 'https://ror.org/00ws30h19', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I69740276']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Masayoshi Takase', 'raw_affiliation_strings': ['Department of Chemistry, Graduate\rSchool of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry, Graduate\rSchool of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan', 'institution_ids': ['https://openalex.org/I69740276']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5068147483', 'display_name': 'Tomoyuki Narita', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I69740276', 'display_name': 'Tokyo Metropolitan University', 'ror': 'https://ror.org/00ws30h19', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I69740276']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Tomoyuki Narita', 'raw_affiliation_strings': ['Department of Chemistry, Graduate\rSchool of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry, Graduate\rSchool of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan', 'institution_ids': ['https://openalex.org/I69740276']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5062207773', 'display_name': 'Wataru Fujita', 'orcid': 'https://orcid.org/0000-0003-4124-7264'}, 'institutions': [{'id': 'https://openalex.org/I69740276', 'display_name': 'Tokyo Metropolitan University', 'ror': 'https://ror.org/00ws30h19', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I69740276']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Wataru Fujita', 'raw_affiliation_strings': ['Department of Chemistry, Graduate\rSchool of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry, Graduate\rSchool of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan', 'institution_ids': ['https://openalex.org/I69740276']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5008227986', 'display_name': 'Motoko S. Asano', 'orcid': 'https://orcid.org/0000-0003-2398-8747'}, 'institutions': [{'id': 'https://openalex.org/I69740276', 'display_name': 'Tokyo Metropolitan University', 'ror': 'https://ror.org/00ws30h19', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I69740276']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Motoko S. Asano', 'raw_affiliation_strings': ['Department of Chemistry, Graduate\rSchool of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry, Graduate\rSchool of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan', 'institution_ids': ['https://openalex.org/I69740276']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5030030806', 'display_name': 'Tohru Nishinaga', 'orcid': 'https://orcid.org/0000-0002-9081-3659'}, 'institutions': [{'id': 'https://openalex.org/I69740276', 'display_name': 'Tokyo Metropolitan University', 'ror': 'https://ror.org/00ws30h19', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I69740276']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Tohru Nishinaga', 'raw_affiliation_strings': ['Department of Chemistry, Graduate\rSchool of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry, Graduate\rSchool of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan', 'institution_ids': ['https://openalex.org/I69740276']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5043226330', 'display_name': 'Hiroaki Benten', 'orcid': 'https://orcid.org/0000-0002-6835-2251'}, 'institutions': [{'id': 'https://openalex.org/I4210140509', 'display_name': 'Kyoto Katsura Hospital', 'ror': 'https://ror.org/04w3ve464', 'country_code': 'JP', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210140509']}, {'id': 'https://openalex.org/I22299242', 'display_name': 'Kyoto University', 'ror': 'https://ror.org/02kpeqv85', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I22299242']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Hiroaki Benten', 'raw_affiliation_strings': ['Department of Polymer Chemistry,\rGraduate School of Science and Engineering, Kyoto University, Katsura, Nishikyo, Kyoto 615-8510, Japan'], 'affiliations': [{'raw_affiliation_string': 'Department of Polymer Chemistry,\rGraduate School of Science and Engineering, Kyoto University, Katsura, Nishikyo, Kyoto 615-8510, Japan', 'institution_ids': ['https://openalex.org/I4210140509', 'https://openalex.org/I22299242']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5059698246', 'display_name': 'Kenji Yoza', 'orcid': 'https://orcid.org/0000-0002-3482-6033'}, 'institutions': [], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Kenji Yoza', 'raw_affiliation_strings': ['Bruker AXS, Yokohama, Kanagawa\r221-0022, Japan'], 'affiliations': [{'raw_affiliation_string': 'Bruker AXS, Yokohama, Kanagawa\r221-0022, Japan', 'institution_ids': []}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5072097825', 'display_name': 'Kläus Müllen', 'orcid': 'https://orcid.org/0000-0001-6630-8786'}, 'institutions': [{'id': 'https://openalex.org/I4210095245', 'display_name': 'Max Planck Institute for Polymer Research', 'ror': 'https://ror.org/00sb7hc59', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I149899117', 'https://openalex.org/I4210095245']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Klaus Müllen', 'raw_affiliation_strings': ['Max-Planck-Institute for Polymer Research, Ackermannweg 10, Mainz 55128,\rGermany'], 'affiliations': [{'raw_affiliation_string': 'Max-Planck-Institute for Polymer Research, Ackermannweg 10, Mainz 55128,\rGermany', 'institution_ids': ['https://openalex.org/I4210095245']}]}], 'countries_distinct_count': 2, 'institutions_distinct_count': 4, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 7.256, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 135, 'citation_normalized_percentile': {'value': 0.999985, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 98, 'max': 99}, 'biblio': {'volume': '135', 'issue': '21', 'first_page': '8031', 'last_page': '8040'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10045', 'display_name': 'Organic Solar Cell Technology', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/2208', 'display_name': 'Electrical and Electronic Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10045', 'display_name': 'Organic Solar Cell Technology', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/2208', 'display_name': 'Electrical and Electronic Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T11240', 'display_name': 'Aggregation-Induced Emission in Fluorescent Materials', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/2505', 'display_name': 'Materials Chemistry'}, 'field': {'id': 'https://openalex.org/fields/25', 'display_name': 'Materials Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10903', 'display_name': 'Role of Porphyrins and Phthalocyanines in Materials Chemistry', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/2505', 'display_name': 'Materials Chemistry'}, 'field': {'id': 'https://openalex.org/fields/25', 'display_name': 'Materials Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/pyrrole', 'display_name': 'Pyrrole', 'score': 0.57269895}, {'id': 'https://openalex.org/keywords/photochemical-properties', 'display_name': 'Photochemical Properties', 'score': 0.489587}], 'concepts': [{'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.90623695}, {'id': 'https://openalex.org/C181817918', 'wikidata': 'https://www.wikidata.org/wiki/Q192275', 'display_name': 'Phosphorescence', 'level': 3, 'score': 0.77563703}, {'id': 'https://openalex.org/C70050531', 'wikidata': 'https://www.wikidata.org/wiki/Q899089', 'display_name': 'Delocalized electron', 'level': 2, 'score': 0.76951087}, {'id': 'https://openalex.org/C75473681', 'wikidata': 'https://www.wikidata.org/wiki/Q188651', 'display_name': 'Photochemistry', 'level': 1, 'score': 0.61127365}, {'id': 'https://openalex.org/C32891209', 'wikidata': 'https://www.wikidata.org/wiki/Q483666', 'display_name': 'Spectroscopy', 'level': 2, 'score': 0.57972527}, {'id': 'https://openalex.org/C2779400197', 'wikidata': 'https://www.wikidata.org/wiki/Q242627', 'display_name': 'Pyrrole', 'level': 2, 'score': 0.57269895}, {'id': 'https://openalex.org/C192386470', 'wikidata': 'https://www.wikidata.org/wiki/Q210390', 'display_name': 'Aromaticity', 'level': 3, 'score': 0.56783015}, {'id': 'https://openalex.org/C119824511', 'wikidata': 'https://www.wikidata.org/wiki/Q13553575', 'display_name': 'Absorption spectroscopy', 'level': 2, 'score': 0.53964216}, {'id': 'https://openalex.org/C33062035', 'wikidata': 'https://www.wikidata.org/wiki/Q3296863', 'display_name': 'Singlet state', 'level': 3, 'score': 0.5341251}, {'id': 'https://openalex.org/C139210041', 'wikidata': 'https://www.wikidata.org/wiki/Q2145840', 'display_name': 'Resonance (particle physics)', 'level': 2, 'score': 0.4421133}, {'id': 'https://openalex.org/C187961010', 'wikidata': 'https://www.wikidata.org/wiki/Q260463', 'display_name': 'Electron paramagnetic resonance', 'level': 2, 'score': 0.4382301}, {'id': 'https://openalex.org/C125287762', 'wikidata': 'https://www.wikidata.org/wiki/Q1758948', 'display_name': 'Absorption (acoustics)', 'level': 2, 'score': 0.4218921}, {'id': 'https://openalex.org/C91881484', 'wikidata': 'https://www.wikidata.org/wiki/Q191807', 'display_name': 'Fluorescence', 'level': 2, 'score': 0.27972433}, {'id': 'https://openalex.org/C32909587', 'wikidata': 'https://www.wikidata.org/wiki/Q11369', 'display_name': 'Molecule', 'level': 2, 'score': 0.2615134}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.1324409}, {'id': 'https://openalex.org/C46141821', 'wikidata': 'https://www.wikidata.org/wiki/Q209402', 'display_name': 'Nuclear magnetic resonance', 'level': 1, 'score': 0.12787801}, {'id': 'https://openalex.org/C184779094', 'wikidata': 'https://www.wikidata.org/wiki/Q26383', 'display_name': 'Atomic physics', 'level': 1, 'score': 0.09510419}, {'id': 'https://openalex.org/C181500209', 'wikidata': 'https://www.wikidata.org/wiki/Q215328', 'display_name': 'Excited state', 'level': 2, 'score': 0.0}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.0}, {'id': 'https://openalex.org/C62520636', 'wikidata': 'https://www.wikidata.org/wiki/Q944', 'display_name': 'Quantum mechanics', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C24890656', 'wikidata': 'https://www.wikidata.org/wiki/Q82811', 'display_name': 'Acoustics', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1021/ja402371f', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S111155417', 'display_name': 'Journal of the American Chemical Society', 'issn_l': '0002-7863', 'issn': ['0002-7863', '1520-5126', '1943-2984'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320006', 'host_organization_name': 'American Chemical Society', 'host_organization_lineage': ['https://openalex.org/P4310320006'], 'host_organization_lineage_names': ['American Chemical Society'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/23662671', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'score': 0.55, 'id': 'https://metadata.un.org/sdg/7', 'display_name': 'Affordable and clean energy'}], 'grants': [], 'datasets': ['https://openalex.org/W4397211512', 'https://openalex.org/W4397165741', 'https://openalex.org/W4397166168', 'https://openalex.org/W4397334679'], 'versions': [], 'referenced_works_count': 169, 'referenced_works': ['https://openalex.org/W139615406', 'https://openalex.org/W1618867428', 'https://openalex.org/W1965103920', 'https://openalex.org/W1965548092', 'https://openalex.org/W1966287720', 'https://openalex.org/W1966845012', 'https://openalex.org/W1966957194', 'https://openalex.org/W1967216804', 'https://openalex.org/W1968335452', 'https://openalex.org/W1969074766', 'https://openalex.org/W1969637192', 'https://openalex.org/W1974659074', 'https://openalex.org/W1975926043', 'https://openalex.org/W1976074557', 'https://openalex.org/W1976176078', 'https://openalex.org/W1977674438', 'https://openalex.org/W1977688545', 'https://openalex.org/W1978863389', 'https://openalex.org/W1981461520', 'https://openalex.org/W1981497683', 'https://openalex.org/W1982540043', 'https://openalex.org/W1984955148', 'https://openalex.org/W1986566460', 'https://openalex.org/W1986801254', 'https://openalex.org/W1992036201', 'https://openalex.org/W1992195601', 'https://openalex.org/W1992326117', 'https://openalex.org/W1996638293', 'https://openalex.org/W1997418114', 'https://openalex.org/W1997855068', 'https://openalex.org/W1998003598', 'https://openalex.org/W1998485866', 'https://openalex.org/W1999119115', 'https://openalex.org/W2001038488', 'https://openalex.org/W2002281680', 'https://openalex.org/W2003885743', 'https://openalex.org/W2004515385', 'https://openalex.org/W2004717337', 'https://openalex.org/W2007311384', 'https://openalex.org/W2009901571', 'https://openalex.org/W2010045253', 'https://openalex.org/W2010587005', 'https://openalex.org/W2012558650', 'https://openalex.org/W2012673536', 'https://openalex.org/W2014693503', 'https://openalex.org/W2014950166', 'https://openalex.org/W2015673981', 'https://openalex.org/W2016994974', 'https://openalex.org/W2019276575', 'https://openalex.org/W2020099789', 'https://openalex.org/W2020222056', 'https://openalex.org/W2020682630', 'https://openalex.org/W2020915745', 'https://openalex.org/W2023351868', 'https://openalex.org/W2024483695', 'https://openalex.org/W2024793089', 'https://openalex.org/W2025277935', 'https://openalex.org/W2025935007', 'https://openalex.org/W2027071441', 'https://openalex.org/W2029399759', 'https://openalex.org/W2030695520', 'https://openalex.org/W2032579267', 'https://openalex.org/W2036096758', 'https://openalex.org/W2036348623', 'https://openalex.org/W2038167382', 'https://openalex.org/W2038951354', 'https://openalex.org/W2040986843', 'https://openalex.org/W2042146518', 'https://openalex.org/W2044830459', 'https://openalex.org/W2045574858', 'https://openalex.org/W2048472519', 'https://openalex.org/W2048560254', 'https://openalex.org/W2053248916', 'https://openalex.org/W2053649791', 'https://openalex.org/W2054729462', 'https://openalex.org/W2061530213', 'https://openalex.org/W2062497883', 'https://openalex.org/W2063300530', 'https://openalex.org/W2063727952', 'https://openalex.org/W2065438754', 'https://openalex.org/W2065520984', 'https://openalex.org/W2066190932', 'https://openalex.org/W2070005238', 'https://openalex.org/W2070243802', 'https://openalex.org/W2070468608', 'https://openalex.org/W2074019461', 'https://openalex.org/W2074447861', 'https://openalex.org/W2074937744', 'https://openalex.org/W2075559657', 'https://openalex.org/W2077431814', 'https://openalex.org/W2078015018', 'https://openalex.org/W2078128673', 'https://openalex.org/W2079616200', 'https://openalex.org/W2081331233', 'https://openalex.org/W2081528954', 'https://openalex.org/W2082001527', 'https://openalex.org/W2085420585', 'https://openalex.org/W2086008638', 'https://openalex.org/W2087427549', 'https://openalex.org/W2087427554', 'https://openalex.org/W2087497057', 'https://openalex.org/W2087999652', 'https://openalex.org/W2093075487', 'https://openalex.org/W2094397888', 'https://openalex.org/W2094837341', 'https://openalex.org/W2094961577', 'https://openalex.org/W2095118276', 'https://openalex.org/W2097913943', 'https://openalex.org/W2100732434', 'https://openalex.org/W2104871327', 'https://openalex.org/W2105331476', 'https://openalex.org/W2106309287', 'https://openalex.org/W2109313088', 'https://openalex.org/W2110599562', 'https://openalex.org/W2113154289', 'https://openalex.org/W2119903196', 'https://openalex.org/W2120372207', 'https://openalex.org/W2120497385', 'https://openalex.org/W2120721552', 'https://openalex.org/W2122432635', 'https://openalex.org/W2126460269', 'https://openalex.org/W2128284659', 'https://openalex.org/W2130199199', 'https://openalex.org/W2132802144', 'https://openalex.org/W2133818281', 'https://openalex.org/W2136320121', 'https://openalex.org/W2137398339', 'https://openalex.org/W2142158315', 'https://openalex.org/W2145332889', 'https://openalex.org/W2149543738', 'https://openalex.org/W2150702843', 'https://openalex.org/W2151246539', 'https://openalex.org/W2152055847', 'https://openalex.org/W2152971093', 'https://openalex.org/W2156739932', 'https://openalex.org/W2158545510', 'https://openalex.org/W2160305838', 'https://openalex.org/W2162001659', 'https://openalex.org/W2163476581', 'https://openalex.org/W2166624456', 'https://openalex.org/W2167188767', 'https://openalex.org/W2171652131', 'https://openalex.org/W2172189622', 'https://openalex.org/W2178215693', 'https://openalex.org/W2314216835', 'https://openalex.org/W2316149515', 'https://openalex.org/W2316629276', 'https://openalex.org/W2320479576', 'https://openalex.org/W2322940517', 'https://openalex.org/W2323246623', 'https://openalex.org/W2323615947', 'https://openalex.org/W2323751434', 'https://openalex.org/W2326103891', 'https://openalex.org/W2326974341', 'https://openalex.org/W2329418690', 'https://openalex.org/W2329830234', 'https://openalex.org/W2330021655', 'https://openalex.org/W2330475859', 'https://openalex.org/W2332971412', 'https://openalex.org/W2335483220', 'https://openalex.org/W2484257847', 'https://openalex.org/W2499193530', 'https://openalex.org/W2951384269', 'https://openalex.org/W2951832483', 'https://openalex.org/W2951852709', 'https://openalex.org/W4210701329', 'https://openalex.org/W4211086451', 'https://openalex.org/W588110516', 'https://openalex.org/W634053010'], 'related_works': ['https://openalex.org/W4379278635', 'https://openalex.org/W4376108999', 'https://openalex.org/W4225429170', 'https://openalex.org/W4213278007', 'https://openalex.org/W3032777282', 'https://openalex.org/W2951095011', 'https://openalex.org/W2133673763', 'https://openalex.org/W2113538610', 'https://openalex.org/W2044681135', 'https://openalex.org/W1973426724'], 'abstract_inverted_index': {'A': [0], 'novel': [1], 'pyrrole-fused': [2], 'azacoronene': [3, 123], 'family': [4], 'was': [5, 202, 217], 'synthesized': [6], 'via': [7], 'oxidative': [8], 'cyclodehydrogenation': [9], 'of': [10, 22, 61, 92, 109, 119, 122, 155, 177, 228, 240], 'the': [11, 15, 19, 70, 90, 110, 120, 135, 144, 147, 153, 165, 174, 178, 183, 192, 206, 210, 226, 237], 'corresponding': [12], 'hexaarylbenzenes': [13], 'as': [14], 'key': [16], 'step,': [17], 'and': [18, 25, 44, 49, 56, 64, 84, 115, 131, 140, 181, 189, 200, 209, 222], 'crystal': [20], 'structures': [21, 170], 'tetraazacoronene': [23, 220], '3b': [24], 'triazacoronene': [26, 223], '4a': [27], 'were': [28, 37, 125], 'elucidated.': [29], 'The': [30, 59, 113], 'photophysical': [31], 'properties': [32, 118], 'for': [33, 107, 134, 196, 219], 'neutral': [34], 'compounds': [35], '1-4': [36], 'investigated': [38], 'using': [39, 127], 'steady-state': [40], 'UV-vis': [41], 'absorption/emission': [42], 'spectroscopy': [43, 46], 'time-resolved': [45], '(emission': [47], 'spectra': [48], 'lifetime': [50], 'measurements)': [51], 'at': [52], 'both': [53, 62], 'room': [54], 'temperature': [55], '77': [57], 'K.': [58], 'observation': [60], 'fluorescence': [63], 'phosphorescence': [65], 'allowed': [66], 'us': [67], 'to': [68, 76, 89, 102, 173], 'estimate': [69], 'small': [71], 'S1-T1': [72], 'energy': [73], 'gap': [74], '(ΔES-T)': [75], 'be': [77, 245], '0.35': [78], 'eV': [79, 82, 86], '(1a),': [80], '0.26': [81], '(2a),': [83], '0.36': [85], '(4a).': [87], 'Similar': [88], 'case': [91], 'previously': [93], 'reported': [94], 'hexapyrrolohexaazacoronene': [95], '1': [96, 188], '(HPHAC),': [97], 'electrochemical': [98], 'oxidation': [99, 105], 'revealed': [100], 'up': [101], 'four': [103], 'reversible': [104], 'processes': [106], 'all': [108], 'new': [111], 'compounds.': [112], 'charge': [114], 'spin': [116, 184], 'delocalization': [117], 'series': [121, 239], 'π-systems': [124], 'examined': [126], 'UV-vis-NIR': [128], 'absorption,': [129], 'ESR,': [130], 'NMR': [132], 'spectroscopies': [133], 'chemically': [136], 'generated': [137], 'radical': [138], 'cations': [139], 'dications.': [141], 'Combined': [142], 'with': [143, 158, 225], 'theoretical': [145, 207, 229], 'calculations,': [146, 208], 'experimental': [148], 'results': [149], 'clearly': [150], 'demonstrated': [151], 'that': [152, 243], 'replacement': [154], 'pyrrole': [156], 'rings': [157], 'dialkoxybenzene': [159], 'plays': [160], 'a': [161], 'critical': [162], 'role': [163], 'in': [164], 'electronic': [166], 'communication,': [167], 'where': [168], 'resonance': [169], 'significantly': [171], 'contribute': [172], 'thermodynamic': [175], 'stability': [176], 'cationic': [179], 'charges/spins': [180], 'determine': [182], 'multiplicities.': [185], 'For': [186], 'HPHAC': [187], 'pentaazacoronene': [190], '2,': [191], 'overall': [193], 'aromaticity': [194], 'predicted': [195], 'closed-shell': [197], 'dications': [198], '1(2+)': [199], '2(2+)': [201], 'primarily': [203], 'based': [204], 'on': [205], 'open-shell': [211], 'singlet': [212], 'biradical': [213], 'or': [214], 'triplet': [215], 'character': [216], 'anticipated': [218], '3(2+)': [221], '4(2+)': [224], 'aid': [227], 'calculations.': [230], 'These': [231], 'polycyclic': [232], 'aromatic': [233], 'hydrocarbons': [234], '(PAHs)': [235], 'represent': [236], 'first': [238], 'nitrogen-containing': [241], 'PAHs': [242], 'can': [244], 'multiply': [246], 'oxidized.': [247]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W1973426724', 'counts_by_year': [{'year': 2024, 'cited_by_count': 4}, {'year': 2023, 'cited_by_count': 15}, {'year': 2022, 'cited_by_count': 12}, {'year': 2021, 'cited_by_count': 12}, {'year': 2020, 'cited_by_count': 10}, {'year': 2019, 'cited_by_count': 22}, {'year': 2018, 'cited_by_count': 10}, {'year': 2017, 'cited_by_count': 12}, {'year': 2016, 'cited_by_count': 11}, {'year': 2015, 'cited_by_count': 11}, {'year': 2014, 'cited_by_count': 13}, {'year': 2013, 'cited_by_count': 3}], 'updated_date': '2024-09-08T21:58:57.689283', 'created_date': '2016-06-24'}