Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W1516551309', 'doi': 'https://doi.org/10.1002/marc.1987.030080610', 'title': 'Isotactic polymerization of propene with (η‐1,1′‐ethylenedi‐4,5,6,7‐tetrahydroindenyl)zirconium dichloride combined with methylaluminoxane', 'display_name': 'Isotactic polymerization of propene with (η‐1,1′‐ethylenedi‐4,5,6,7‐tetrahydroindenyl)zirconium dichloride combined with methylaluminoxane', 'publication_year': 1987, 'publication_date': '1987-06-01', 'ids': {'openalex': 'https://openalex.org/W1516551309', 'doi': 'https://doi.org/10.1002/marc.1987.030080610', 'mag': '1516551309'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1002/marc.1987.030080610', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S64556797', 'display_name': 'Die Makromolekulare Chemie Rapid Communications', 'issn_l': '0173-2803', 'issn': ['0173-2803'], 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/P4310320595', 'host_organization_name': 'Wiley', 'host_organization_lineage': ['https://openalex.org/P4310320595'], 'host_organization_lineage_names': ['Wiley'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], '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/A5108356203', 'display_name': 'Kazuo Soga', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I114531698', 'display_name': 'Tokyo Institute of Technology', 'ror': 'https://ror.org/0112mx960', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I114531698']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Kazuo Soga', 'raw_affiliation_strings': ['Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 227, Japan'], 'affiliations': [{'raw_affiliation_string': 'Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 227, Japan', 'institution_ids': ['https://openalex.org/I114531698']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5019498837', 'display_name': 'Takeshi Shiono', 'orcid': 'https://orcid.org/0000-0002-1118-9991'}, 'institutions': [{'id': 'https://openalex.org/I114531698', 'display_name': 'Tokyo Institute of Technology', 'ror': 'https://ror.org/0112mx960', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I114531698']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Takeshi Shiono', 'raw_affiliation_strings': ['Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 227, Japan'], 'affiliations': [{'raw_affiliation_string': 'Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 227, Japan', 'institution_ids': ['https://openalex.org/I114531698']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5112447956', 'display_name': 'Shinji Takemura', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I25222733', 'display_name': 'Showa Denko (Japan)', 'ror': 'https://ror.org/0251vfx90', 'country_code': 'JP', 'type': 'company', 'lineage': ['https://openalex.org/I25222733']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Shinji Takemura', 'raw_affiliation_strings': ['Oita Research Laboratory, Showa Denko K.K., 2, Nakanosu, Oita 870‐01, Japan'], 'affiliations': [{'raw_affiliation_string': 'Oita Research Laboratory, Showa Denko K.K., 2, Nakanosu, Oita 870‐01, Japan', 'institution_ids': ['https://openalex.org/I25222733']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5102726180', 'display_name': 'Walter Kaminsky', 'orcid': 'https://orcid.org/0000-0002-0196-7497'}, 'institutions': [{'id': 'https://openalex.org/I159176309', 'display_name': 'Universität Hamburg', 'ror': 'https://ror.org/00g30e956', 'country_code': 'DE', 'type': 'education', 'lineage': ['https://openalex.org/I159176309']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Walter Kaminsky', 'raw_affiliation_strings': ['Institute für Technische und Makromolekulare Chemie, Universität Hamburg, Bundesstraße 45, D-2000 Hamburg 13, West Germany'], 'affiliations': [{'raw_affiliation_string': 'Institute für Technische und Makromolekulare Chemie, Universität Hamburg, Bundesstraße 45, D-2000 Hamburg 13, West Germany', 'institution_ids': ['https://openalex.org/I159176309']}]}], 'institution_assertions': [], 'countries_distinct_count': 2, 'institutions_distinct_count': 3, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 8.329, 'has_fulltext': False, 'cited_by_count': 132, 'citation_normalized_percentile': {'value': 0.965972, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 97, 'max': 98}, 'biblio': {'volume': '8', 'issue': '6', 'first_page': '305', 'last_page': '310'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10092', 'display_name': 'Organometallic Complex Synthesis and Catalysis', 'score': 0.9959, 'subfield': {'id': 'https://openalex.org/subfields/1605', 'display_name': 'Organic Chemistry'}, 'field': {'id': 'https://openalex.org/fields/16', 'display_name': 'Chemistry'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10092', 'display_name': 'Organometallic Complex Synthesis and Catalysis', 'score': 0.9959, 'subfield': {'id': 'https://openalex.org/subfields/1605', 'display_name': 'Organic Chemistry'}, 'field': {'id': 'https://openalex.org/fields/16', 'display_name': 'Chemistry'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T11549', 'display_name': 'Synthetic Organic Chemistry Methods', 'score': 0.9944, 'subfield': {'id': 'https://openalex.org/subfields/1605', 'display_name': 'Organic Chemistry'}, 'field': {'id': 'https://openalex.org/fields/16', 'display_name': 'Chemistry'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10973', 'display_name': 'Radioactive element chemistry and processing', 'score': 0.9886, 'subfield': {'id': 'https://openalex.org/subfields/1604', 'display_name': 'Inorganic Chemistry'}, 'field': {'id': 'https://openalex.org/fields/16', 'display_name': 'Chemistry'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/methylaluminoxane', 'display_name': 'Methylaluminoxane', 'score': 0.75030077}, {'id': 'https://openalex.org/keywords/propene', 'display_name': 'Propene', 'score': 0.4521402}], 'concepts': [{'id': 'https://openalex.org/C2777174529', 'wikidata': 'https://www.wikidata.org/wiki/Q408080', 'display_name': 'Methylaluminoxane', 'level': 5, 'score': 0.75030077}, {'id': 'https://openalex.org/C2777954637', 'wikidata': 'https://www.wikidata.org/wiki/Q151324', 'display_name': 'Propene', 'level': 3, 'score': 0.4521402}, {'id': 'https://openalex.org/C161191863', 'wikidata': 'https://www.wikidata.org/wiki/Q199655', 'display_name': 'Library science', 'level': 1, 'score': 0.43023574}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.29024613}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.25182843}, {'id': 'https://openalex.org/C44228677', 'wikidata': 'https://www.wikidata.org/wiki/Q181898', 'display_name': 'Polymerization', 'level': 3, 'score': 0.1767621}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.12181279}, {'id': 'https://openalex.org/C55493867', 'wikidata': 'https://www.wikidata.org/wiki/Q7094', 'display_name': 'Biochemistry', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C46141821', 'wikidata': 'https://www.wikidata.org/wiki/Q209402', 'display_name': 'Nuclear magnetic resonance', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C2780446808', 'wikidata': 'https://www.wikidata.org/wiki/Q413676', 'display_name': 'Metallocene', 'level': 4, 'score': 0.0}, {'id': 'https://openalex.org/C161790260', 'wikidata': 'https://www.wikidata.org/wiki/Q82264', 'display_name': 'Catalysis', 'level': 2, 'score': 0.0}, {'id': 'https://openalex.org/C521977710', 'wikidata': 'https://www.wikidata.org/wiki/Q81163', 'display_name': 'Polymer', 'level': 2, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1002/marc.1987.030080610', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S64556797', 'display_name': 'Die Makromolekulare Chemie Rapid Communications', 'issn_l': '0173-2803', 'issn': ['0173-2803'], 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/P4310320595', 'host_organization_name': 'Wiley', 'host_organization_lineage': ['https://openalex.org/P4310320595'], 'host_organization_lineage_names': ['Wiley'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 6, 'referenced_works': ['https://openalex.org/W151194753', 'https://openalex.org/W182836665', 'https://openalex.org/W2012480340', 'https://openalex.org/W2034274264', 'https://openalex.org/W2074865633', 'https://openalex.org/W2085477109'], 'related_works': ['https://openalex.org/W4239768715', 'https://openalex.org/W2996419690', 'https://openalex.org/W2394261058', 'https://openalex.org/W2367591813', 'https://openalex.org/W2120545215', 'https://openalex.org/W2063766098', 'https://openalex.org/W2055160220', 'https://openalex.org/W2030306967', 'https://openalex.org/W2012235954', 'https://openalex.org/W1971173874'], 'abstract_inverted_index': {'Die': [0], 'Makromolekulare': [1, 97, 111, 204, 218], 'Chemie,': [2, 98, 112, 205, 219], 'Rapid': [3], 'CommunicationsVolume': [4], '8,': [5], 'Issue': [6], '6': [7], 'p.': [8], '305-310': [9, 315], 'Article': [10], 'Isotactic': [11], 'polymerization': [12], 'of': [13, 27, 32, 50, 55, 134, 139, 157, 162, 260, 270, 283, 294], 'propene': [14], 'with': [15, 19, 297], '(η-1,1′-ethylenedi-4,5,6,7-tetrahydroindenyl)zirconium': [16], 'dichloride': [17], 'combined': [18], 'methylaluminoxane': [20], 'Kazuo': [21, 23, 128, 130], 'Soga,': [22, 129], 'Soga': [24, 131], 'Research': [25, 48, 72, 132, 155, 179], 'Laboratory': [26, 49, 133, 156], 'Resources': [28, 51, 135, 158], 'Utilization,': [29, 52, 136, 159], 'Tokyo': [30, 53, 137, 160], 'Institute': [31, 54, 93, 138, 161, 200], 'Technology,': [33, 56, 140, 163], '4259': [34, 57, 141, 164], 'Nagatsuta,': [35, 58, 142, 165], 'Yokohama': [36, 59, 143, 166], '227,': [37, 60, 144, 167], 'JapanSearch': [38, 61, 81, 145, 168, 188], 'for': [39, 62, 82, 122, 146, 169, 189, 229], 'more': [40, 63, 83, 123, 147, 170, 190, 230], 'papers': [41, 64, 84, 124, 148, 171, 191, 231], 'by': [42, 65, 85, 125, 149, 172, 192, 232], 'this': [43, 66, 86, 126, 150, 173, 193, 233, 295], 'authorTakeshi': [44, 151], 'Shiono,': [45, 152], 'Takeshi': [46, 153], 'Shiono': [47, 154], 'authorShinji': [67, 174], 'Takemura,': [68, 175], 'Shinji': [69, 176], 'Takemura': [70, 177], 'Oita': [71, 79, 178, 186], 'Laboratory,': [73, 180], 'Showa': [74, 181], 'Denko': [75, 182], 'K.K.,': [76, 183], '2,': [77, 184], 'Nakanosu,': [78, 185], '870-01,': [80, 187], 'authorWalter': [87, 194], 'Kaminsky,': [88, 195], 'Corresponding': [89, 196], 'Author': [90, 197], 'Walter': [91, 198], 'Kaminsky': [92, 199], 'für': [94, 108, 201, 215], 'Technische': [95, 109, 202, 216], 'und': [96, 110, 203, 217], 'Universität': [99, 113, 206, 220], 'Hamburg,': [100, 114, 207, 221], 'Bundesstraße': [101, 115, 208, 222], '45,': [102, 116, 209, 223], 'D-2000': [103, 117, 210, 224], 'Hamburg': [104, 118, 211, 225], '13,': [105, 119, 212, 226], 'West': [106, 120, 213, 227], 'GermanyInstitute': [107, 214], 'GermanySearch': [121, 228], 'author': [127, 234], 'First': [235], 'published:': [236], 'June': [237], '1987': [238], 'https://doi.org/10.1002/marc.1987.030080610Citations:': [239], '130AboutPDF': [240], 'ToolsRequest': [241], 'permissionExport': [242], 'citationAdd': [243], 'to': [244, 266, 289], 'favoritesTrack': [245], 'citation': [246], 'ShareShare': [247], 'Give': [248], 'accessShare': [249, 252], 'full': [250], 'text': [251], 'full-text': [253, 268, 292], 'accessPlease': [254], 'review': [255], 'our': [256], 'Terms': [257, 280], 'and': [258, 262, 274, 281, 300], 'Conditions': [259, 282], 'Use': [261], 'check': [263], 'box': [264], 'below': [265, 288], 'share': [267, 290], 'version': [269, 293], 'article.I': [271], 'have': [272], 'read': [273], 'accept': [275], 'the': [276, 286], 'Wiley': [277], 'Online': [278], 'Library': [279], 'UseShareable': [284], 'LinkUse': [285], 'link': [287], 'a': [291, 306], 'article': [296], 'your': [298], 'friends': [299], 'colleagues.': [301], 'Learn': [302], 'more.Copy': [303], 'URL': [304], 'Share': [305], 'linkShare': [307], 'onFacebookTwitterLinked': [308], 'InRedditWechat': [309], 'Citing': [310], 'Literature': [311], 'Volume8,': [312], 'Issue6June': [313], '1987Pages': [314], 'RelatedInformation': [316]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W1516551309', 'counts_by_year': [{'year': 2019, 'cited_by_count': 2}, {'year': 2017, 'cited_by_count': 2}, {'year': 2015, 'cited_by_count': 1}, {'year': 2014, 'cited_by_count': 2}, {'year': 2013, 'cited_by_count': 1}], 'updated_date': '2024-12-11T04:54:12.000546', 'created_date': '2016-06-24'}