Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2001898370', 'doi': 'https://doi.org/10.1002/ejic.200900843', 'title': 'Synthesis, Structure, and Polymerization Activity of Cyclopentadienylnickel(II) N‐Heterocyclic Carbene Complexes: Selective Cross‐Metathesis in Metal Coordination Spheres', 'display_name': 'Synthesis, Structure, and Polymerization Activity of Cyclopentadienylnickel(II) N‐Heterocyclic Carbene Complexes: Selective Cross‐Metathesis in Metal Coordination Spheres', 'publication_year': 2009, 'publication_date': '2009-12-18', 'ids': {'openalex': 'https://openalex.org/W2001898370', 'doi': 'https://doi.org/10.1002/ejic.200900843', 'mag': '2001898370'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1002/ejic.200900843', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S16435181', 'display_name': 'European Journal of Inorganic Chemistry', 'issn_l': '1434-1948', 'issn': ['1434-1948', '1099-0682'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, '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/A5008381721', 'display_name': 'Włodzimierz Buchowicz', 'orcid': 'https://orcid.org/0000-0002-1832-7461'}, 'institutions': [{'id': 'https://openalex.org/I108403487', 'display_name': 'Warsaw University of Technology', 'ror': 'https://ror.org/00y0xnp53', 'country_code': 'PL', 'type': 'education', 'lineage': ['https://openalex.org/I108403487']}], 'countries': ['PL'], 'is_corresponding': False, 'raw_author_name': 'Włodzimierz Buchowicz', 'raw_affiliation_strings': ['Warsaw University of Technology, Faculty of Chemistry, Koszykowa 75, 00‐662 Warszawa, Poland, Fax: +48‐22‐234‐5462'], 'affiliations': [{'raw_affiliation_string': 'Warsaw University of Technology, Faculty of Chemistry, Koszykowa 75, 00‐662 Warszawa, Poland, Fax: +48‐22‐234‐5462', 'institution_ids': ['https://openalex.org/I108403487']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5083676394', 'display_name': 'W. Wojtczak', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I108403487', 'display_name': 'Warsaw University of Technology', 'ror': 'https://ror.org/00y0xnp53', 'country_code': 'PL', 'type': 'education', 'lineage': ['https://openalex.org/I108403487']}], 'countries': ['PL'], 'is_corresponding': False, 'raw_author_name': 'Wioleta Wojtczak', 'raw_affiliation_strings': ['Warsaw University of Technology, Faculty of Chemistry, Koszykowa 75, 00‐662 Warszawa, Poland, Fax: +48‐22‐234‐5462'], 'affiliations': [{'raw_affiliation_string': 'Warsaw University of Technology, Faculty of Chemistry, Koszykowa 75, 00‐662 Warszawa, Poland, Fax: +48‐22‐234‐5462', 'institution_ids': ['https://openalex.org/I108403487']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5078298765', 'display_name': 'A. Pietrzykowski', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I108403487', 'display_name': 'Warsaw University of Technology', 'ror': 'https://ror.org/00y0xnp53', 'country_code': 'PL', 'type': 'education', 'lineage': ['https://openalex.org/I108403487']}], 'countries': ['PL'], 'is_corresponding': False, 'raw_author_name': 'Antoni Pietrzykowski', 'raw_affiliation_strings': ['Warsaw University of Technology, Faculty of Chemistry, Koszykowa 75, 00‐662 Warszawa, Poland, Fax: +48‐22‐234‐5462'], 'affiliations': [{'raw_affiliation_string': 'Warsaw University of Technology, Faculty of Chemistry, Koszykowa 75, 00‐662 Warszawa, Poland, Fax: +48‐22‐234‐5462', 'institution_ids': ['https://openalex.org/I108403487']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5052362632', 'display_name': 'Anna Lupa', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I108403487', 'display_name': 'Warsaw University of Technology', 'ror': 'https://ror.org/00y0xnp53', 'country_code': 'PL', 'type': 'education', 'lineage': ['https://openalex.org/I108403487']}], 'countries': ['PL'], 'is_corresponding': False, 'raw_author_name': 'Anna Lupa', 'raw_affiliation_strings': ['Warsaw University of Technology, Faculty of Chemistry, Koszykowa 75, 00‐662 Warszawa, Poland, Fax: +48‐22‐234‐5462'], 'affiliations': [{'raw_affiliation_string': 'Warsaw University of Technology, Faculty of Chemistry, Koszykowa 75, 00‐662 Warszawa, Poland, Fax: +48‐22‐234‐5462', 'institution_ids': ['https://openalex.org/I108403487']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5083150691', 'display_name': 'L.B. Jerzykiewicz', 'orcid': 'https://orcid.org/0000-0001-9756-7035'}, 'institutions': [{'id': 'https://openalex.org/I219388962', 'display_name': 'University of Wrocław', 'ror': 'https://ror.org/00yae6e25', 'country_code': 'PL', 'type': 'education', 'lineage': ['https://openalex.org/I219388962']}], 'countries': ['PL'], 'is_corresponding': False, 'raw_author_name': 'Lucjan B. Jerzykiewicz', 'raw_affiliation_strings': ['University of Wroclaw, Faculty of Chemistry, Joliot-Curie 14, 50-353 Wrocław, Poland'], 'affiliations': [{'raw_affiliation_string': 'University of Wroclaw, Faculty of Chemistry, Joliot-Curie 14, 50-353 Wrocław, Poland', 'institution_ids': ['https://openalex.org/I219388962']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5010251212', 'display_name': 'Anna Makal', 'orcid': 'https://orcid.org/0000-0001-9357-2670'}, 'institutions': [{'id': 'https://openalex.org/I4654613', 'display_name': 'University of Warsaw', 'ror': 'https://ror.org/039bjqg32', 'country_code': 'PL', 'type': 'education', 'lineage': ['https://openalex.org/I4654613']}], 'countries': ['PL'], 'is_corresponding': False, 'raw_author_name': 'Anna Makal', 'raw_affiliation_strings': ['Chemistry Department, Warsaw University, Pasteura 1, 02‐093 Warszawa, Poland'], 'affiliations': [{'raw_affiliation_string': 'Chemistry Department, Warsaw University, Pasteura 1, 02‐093 Warszawa, Poland', 'institution_ids': ['https://openalex.org/I4654613']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5071412549', 'display_name': 'Krzysztof Woźniak', 'orcid': 'https://orcid.org/0000-0002-0277-294X'}, 'institutions': [{'id': 'https://openalex.org/I4654613', 'display_name': 'University of Warsaw', 'ror': 'https://ror.org/039bjqg32', 'country_code': 'PL', 'type': 'education', 'lineage': ['https://openalex.org/I4654613']}], 'countries': ['PL'], 'is_corresponding': False, 'raw_author_name': 'Krzysztof Woźniak', 'raw_affiliation_strings': ['Chemistry Department, Warsaw University, Pasteura 1, 02‐093 Warszawa, Poland'], 'affiliations': [{'raw_affiliation_string': 'Chemistry Department, Warsaw University, Pasteura 1, 02‐093 Warszawa, Poland', 'institution_ids': ['https://openalex.org/I4654613']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 3, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 3860, 'currency': 'USD', 'value_usd': 3860, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 1.154, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 41, 'citation_normalized_percentile': {'value': 0.857915, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 93, 'max': 94}, 'biblio': {'volume': '2010', 'issue': '4', 'first_page': '648', 'last_page': '656'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T11549', 'display_name': 'Synthetic Organic Chemistry Methods', 'score': 1.0, '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/T11549', 'display_name': 'Synthetic Organic Chemistry Methods', 'score': 1.0, '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/T11790', 'display_name': 'N-Heterocyclic Carbenes in Organic and Inorganic Chemistry', 'score': 0.9991, '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/T10092', 'display_name': 'Organometallic Complex Synthesis and Catalysis', 'score': 0.999, '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'}}], 'keywords': [{'id': 'https://openalex.org/keywords/nickelocene', 'display_name': 'Nickelocene', 'score': 0.823571}, {'id': 'https://openalex.org/keywords/phenylacetylene', 'display_name': 'Phenylacetylene', 'score': 0.6585271}, {'id': 'https://openalex.org/keywords/methyl-vinyl-ketone', 'display_name': 'Methyl vinyl ketone', 'score': 0.54802585}, {'id': 'https://openalex.org/keywords/romp', 'display_name': 'ROMP', 'score': 0.48884767}, {'id': 'https://openalex.org/keywords/methyl-acrylate', 'display_name': 'Methyl acrylate', 'score': 0.46452105}], 'concepts': [{'id': 'https://openalex.org/C2777164566', 'wikidata': 'https://www.wikidata.org/wiki/Q419257', 'display_name': 'Carbene', 'level': 3, 'score': 0.92667073}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.87847126}, {'id': 'https://openalex.org/C2777773546', 'wikidata': 'https://www.wikidata.org/wiki/Q418054', 'display_name': 'Nickelocene', 'level': 5, 'score': 0.823571}, {'id': 'https://openalex.org/C2778545935', 'wikidata': 'https://www.wikidata.org/wiki/Q417321', 'display_name': 'Phenylacetylene', 'level': 3, 'score': 0.6585271}, {'id': 'https://openalex.org/C2778689049', 'wikidata': 'https://www.wikidata.org/wiki/Q898422', 'display_name': 'Substituent', 'level': 2, 'score': 0.65563834}, {'id': 'https://openalex.org/C116569031', 'wikidata': 'https://www.wikidata.org/wiki/Q899107', 'display_name': 'Ligand (biochemistry)', 'level': 3, 'score': 0.56630665}, {'id': 'https://openalex.org/C2776753869', 'wikidata': 'https://www.wikidata.org/wiki/Q417525', 'display_name': 'Methyl vinyl ketone', 'level': 3, 'score': 0.54802585}, {'id': 'https://openalex.org/C44228677', 'wikidata': 'https://www.wikidata.org/wiki/Q181898', 'display_name': 'Polymerization', 'level': 3, 'score': 0.4960409}, {'id': 'https://openalex.org/C2780227895', 'wikidata': 'https://www.wikidata.org/wiki/Q2660966', 'display_name': 'ROMP', 'level': 5, 'score': 0.48884767}, {'id': 'https://openalex.org/C153914509', 'wikidata': 'https://www.wikidata.org/wiki/Q191090', 'display_name': 'Metathesis', 'level': 4, 'score': 0.46908227}, {'id': 'https://openalex.org/C2778004933', 'wikidata': 'https://www.wikidata.org/wiki/Q343028', 'display_name': 'Methyl acrylate', 'level': 4, 'score': 0.46452105}, {'id': 'https://openalex.org/C155647269', 'wikidata': 'https://www.wikidata.org/wiki/Q243455', 'display_name': 'Medicinal chemistry', 'level': 1, 'score': 0.4347158}, {'id': 'https://openalex.org/C555196967', 'wikidata': 'https://www.wikidata.org/wiki/Q1086', 'display_name': 'Ruthenium', 'level': 3, 'score': 0.4188515}, {'id': 'https://openalex.org/C188027245', 'wikidata': 'https://www.wikidata.org/wiki/Q750446', 'display_name': 'Polymer chemistry', 'level': 1, 'score': 0.39090356}, {'id': 'https://openalex.org/C71240020', 'wikidata': 'https://www.wikidata.org/wiki/Q186011', 'display_name': 'Stereochemistry', 'level': 1, 'score': 0.32402587}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.1763371}, {'id': 'https://openalex.org/C161790260', 'wikidata': 'https://www.wikidata.org/wiki/Q82264', 'display_name': 'Catalysis', 'level': 2, 'score': 0.14447328}, {'id': 'https://openalex.org/C521977710', 'wikidata': 'https://www.wikidata.org/wiki/Q81163', 'display_name': 'Polymer', 'level': 2, 'score': 0.124052376}, {'id': 'https://openalex.org/C15920480', 'wikidata': 'https://www.wikidata.org/wiki/Q421281', 'display_name': 'Copolymer', 'level': 3, 'score': 0.07680863}, {'id': 'https://openalex.org/C55493867', 'wikidata': 'https://www.wikidata.org/wiki/Q7094', 'display_name': 'Biochemistry', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C2777237805', 'wikidata': 'https://www.wikidata.org/wiki/Q211972', 'display_name': 'Ferrocene', 'level': 4, 'score': 0.0}, {'id': 'https://openalex.org/C170493617', 'wikidata': 'https://www.wikidata.org/wiki/Q208467', 'display_name': 'Receptor', 'level': 2, 'score': 0.0}, {'id': 'https://openalex.org/C17525397', 'wikidata': 'https://www.wikidata.org/wiki/Q176140', 'display_name': 'Electrode', 'level': 2, 'score': 0.0}, {'id': 'https://openalex.org/C147789679', 'wikidata': 'https://www.wikidata.org/wiki/Q11372', 'display_name': 'Physical chemistry', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C52859227', 'wikidata': 'https://www.wikidata.org/wiki/Q7877', 'display_name': 'Electrochemistry', 'level': 3, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1002/ejic.200900843', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S16435181', 'display_name': 'European Journal of Inorganic Chemistry', 'issn_l': '1434-1948', 'issn': ['1434-1948', '1099-0682'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, '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': [{'display_name': 'Clean water and sanitation', 'id': 'https://metadata.un.org/sdg/6', 'score': 0.49}], 'grants': [], 'datasets': ['https://openalex.org/W4397627484', 'https://openalex.org/W4397676003'], 'versions': [], 'referenced_works_count': 61, 'referenced_works': ['https://openalex.org/W105587982', 'https://openalex.org/W115238100', 'https://openalex.org/W1917453547', 'https://openalex.org/W1965981831', 'https://openalex.org/W1966995249', 'https://openalex.org/W1969332209', 'https://openalex.org/W1969335186', 'https://openalex.org/W1977602789', 'https://openalex.org/W1978607191', 'https://openalex.org/W1981963295', 'https://openalex.org/W1984740050', 'https://openalex.org/W1984993679', 'https://openalex.org/W1986858488', 'https://openalex.org/W1990666574', 'https://openalex.org/W1995124358', 'https://openalex.org/W1995846141', 'https://openalex.org/W1996492851', 'https://openalex.org/W2000345139', 'https://openalex.org/W2002710856', 'https://openalex.org/W2003143283', 'https://openalex.org/W2004116679', 'https://openalex.org/W2009381692', 'https://openalex.org/W2011923724', 'https://openalex.org/W2017487371', 'https://openalex.org/W2019101723', 'https://openalex.org/W2020831964', 'https://openalex.org/W2022424672', 'https://openalex.org/W2023525061', 'https://openalex.org/W2034618002', 'https://openalex.org/W2035569402', 'https://openalex.org/W2038340466', 'https://openalex.org/W2040089285', 'https://openalex.org/W2043681561', 'https://openalex.org/W2044665628', 'https://openalex.org/W2047893591', 'https://openalex.org/W2051625593', 'https://openalex.org/W2051941446', 'https://openalex.org/W2052746563', 'https://openalex.org/W2057828452', 'https://openalex.org/W2061994041', 'https://openalex.org/W2062656300', 'https://openalex.org/W2072380604', 'https://openalex.org/W2073460303', 'https://openalex.org/W2074768142', 'https://openalex.org/W2079082185', 'https://openalex.org/W2083162806', 'https://openalex.org/W2084264699', 'https://openalex.org/W2084910777', 'https://openalex.org/W2093881840', 'https://openalex.org/W2095242778', 'https://openalex.org/W2102331025', 'https://openalex.org/W2109798273', 'https://openalex.org/W2112839952', 'https://openalex.org/W2129754550', 'https://openalex.org/W2131537503', 'https://openalex.org/W2146826510', 'https://openalex.org/W2148396438', 'https://openalex.org/W2161750263', 'https://openalex.org/W2950431331', 'https://openalex.org/W2951542235', 'https://openalex.org/W4253450912'], 'related_works': ['https://openalex.org/W4235937613', 'https://openalex.org/W2565971994', 'https://openalex.org/W2315340777', 'https://openalex.org/W2161939663', 'https://openalex.org/W2071609537', 'https://openalex.org/W2062614191', 'https://openalex.org/W2047090535', 'https://openalex.org/W2001898370', 'https://openalex.org/W1982865198', 'https://openalex.org/W1975067474'], 'abstract_inverted_index': {'Abstract': [0], 'The': [1, 29, 70], 'N‐heterocyclic': [2], 'carbene': [3, 27, 84, 95, 122], '(NHC)': [4], 'complexes': [5, 31, 55, 106], '[(RC': [6, 125], '5': [7, 14, 34, 126], 'H': [8, 127], '4': [9, 32, 128], ')Ni(X)(NHC)]': [10], '(': [11], '2': [12, 75, 78, 107], '–': [13, 57], ')': [15], 'have': [16], 'been': [17], 'prepared': [18], 'by': [19], 'treating': [20], 'nickelocene': [21], '[or': [22], '1,1′‐bis(alkenyl)nickelocene]': [23], 'with': [24, 38], 'a': [25], 'suitable': [26], 'precursor.': [28], 'alkenylcyclopentadienido': [30], 'and': [33, 87, 108, 146], 'undergo': [35], 'chemoselective': [36], 'cross‐metathesis': [37], 'methyl': [39, 42], 'acrylate': [40], 'or': [41], 'vinyl': [43], 'ketone': [44], 'in': [45, 130, 141, 149], 'the': [46, 49, 67, 121, 131, 142, 150], 'presence': [47, 132], 'of': [48, 74, 105, 120, 133, 136, 144, 152], 'seocnd‐generation': [50], 'Grubbs': [51], 'catalyst': [52], 'to': [53], 'yield': [54], '6': [56], '8': [58], ',': [59, 82, 93, 110], 'which': [60, 111], 'bear': [61], 'an': [62, 113, 134], 'α,β‐unsaturated': [63], 'carbonyl': [64], 'substituent': [65], 'on': [66], 'cyclopentadienido': [68], 'ligand.': [69, 123], 'X‐ray': [71], 'crystal': [72], 'structure': [73], '[monoclinic,': [76], 'P': [77, 90], '1': [79], '/': [80], 'n': [81], 'Ni–C': [83, 94], '1.879(3)': [85], 'Å]': [86, 97], '7': [88], '[triclinic,': [89], '$\\bar': [91], '{1}$': [92], '1.8874(6)': [96], 'reveal': [98], 'undistorted': [99], 'trigonal‐planar': [100], 'Ni': [101], 'coordination.': [102], 'VT‐NMR': [103], 'studies': [104], '3': [109], 'possess': [112], 'N': [114], '‐alkyl': [115], 'substituent,': [116], 'show': [117], 'hindered': [118], 'rotation': [119], 'Complexes': [124], ')Ni(X)(NHC)],': [129], 'excess': [135], 'MAO,': [137], 'display': [138], 'high': [139], 'activity': [140, 148], 'polymerization': [143], 'styrene': [145], 'moderate': [147], 'oligomerization': [151], 'phenylacetylene.': [153]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2001898370', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 2}, {'year': 2020, 'cited_by_count': 2}, {'year': 2019, 'cited_by_count': 2}, {'year': 2018, 'cited_by_count': 2}, {'year': 2017, 'cited_by_count': 6}, {'year': 2016, 'cited_by_count': 5}, {'year': 2015, 'cited_by_count': 4}, {'year': 2014, 'cited_by_count': 5}, {'year': 2013, 'cited_by_count': 4}, {'year': 2012, 'cited_by_count': 5}], 'updated_date': '2024-12-12T22:33:59.085748', 'created_date': '2016-06-24'}