Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2952255184', 'doi': 'https://doi.org/10.1021/cr9804689', 'title': 'Propene Polymerization with Silica-Supported Metallocene/MAO Catalysts', 'display_name': 'Propene Polymerization with Silica-Supported Metallocene/MAO Catalysts', 'publication_year': 2000, 'publication_date': '2000-03-18', 'ids': {'openalex': 'https://openalex.org/W2952255184', 'doi': 'https://doi.org/10.1021/cr9804689', 'mag': '2952255184', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/11749268'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1021/cr9804689', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S41143188', 'display_name': 'Chemical Reviews', 'issn_l': '0009-2665', 'issn': ['0009-2665', '1520-6890'], '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': 'review', '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/A5017646173', 'display_name': 'Gerhard Fink', 'orcid': 'https://orcid.org/0000-0002-1914-0500'}, 'institutions': [{'id': 'https://openalex.org/I4210090782', 'display_name': 'Max-Planck-Institut für Kohlenforschung', 'ror': 'https://ror.org/00a7vgh58', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I149899117', 'https://openalex.org/I4210090782']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Gerhard Fink', 'raw_affiliation_strings': ['Max Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim/Ruhr, Germany'], 'affiliations': [{'raw_affiliation_string': 'Max Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim/Ruhr, Germany', 'institution_ids': ['https://openalex.org/I4210090782']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5070109216', 'display_name': 'Bernd Steinmetz', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210090782', 'display_name': 'Max-Planck-Institut für Kohlenforschung', 'ror': 'https://ror.org/00a7vgh58', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I149899117', 'https://openalex.org/I4210090782']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Bernd Steinmetz', 'raw_affiliation_strings': ['Max Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim/Ruhr, Germany'], 'affiliations': [{'raw_affiliation_string': 'Max Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim/Ruhr, Germany', 'institution_ids': ['https://openalex.org/I4210090782']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5057467950', 'display_name': 'Joachim Zechlin', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210090782', 'display_name': 'Max-Planck-Institut für Kohlenforschung', 'ror': 'https://ror.org/00a7vgh58', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I149899117', 'https://openalex.org/I4210090782']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Joachim Zechlin', 'raw_affiliation_strings': ['Max Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim/Ruhr, Germany'], 'affiliations': [{'raw_affiliation_string': 'Max Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim/Ruhr, Germany', 'institution_ids': ['https://openalex.org/I4210090782']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5002616213', 'display_name': 'Christian Przybyla', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210090782', 'display_name': 'Max-Planck-Institut für Kohlenforschung', 'ror': 'https://ror.org/00a7vgh58', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I149899117', 'https://openalex.org/I4210090782']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Christian Przybyla', 'raw_affiliation_strings': ['Max Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim/Ruhr, Germany'], 'affiliations': [{'raw_affiliation_string': 'Max Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim/Ruhr, Germany', 'institution_ids': ['https://openalex.org/I4210090782']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5074178033', 'display_name': 'B. Tesche', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210090782', 'display_name': 'Max-Planck-Institut für Kohlenforschung', 'ror': 'https://ror.org/00a7vgh58', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I149899117', 'https://openalex.org/I4210090782']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Bernd Tesche', 'raw_affiliation_strings': ['Max Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim/Ruhr, Germany'], 'affiliations': [{'raw_affiliation_string': 'Max Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim/Ruhr, Germany', 'institution_ids': ['https://openalex.org/I4210090782']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 1.7, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 360, 'citation_normalized_percentile': {'value': 0.98773, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 98, 'max': 99}, 'biblio': {'volume': '100', 'issue': '4', 'first_page': '1377', 'last_page': '1390'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10092', 'display_name': 'Organometallic Complex Synthesis and Catalysis', 'score': 0.9999, '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': 0.9999, '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': 0.9974, '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': 0.9965, '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/altmetrics', 'display_name': 'Altmetrics', 'score': 0.42256445}], 'concepts': [{'id': 'https://openalex.org/C2778805511', 'wikidata': 'https://www.wikidata.org/wiki/Q1713', 'display_name': 'Citation', 'level': 2, 'score': 0.6317758}, {'id': 'https://openalex.org/C44228677', 'wikidata': 'https://www.wikidata.org/wiki/Q181898', 'display_name': 'Polymerization', 'level': 3, 'score': 0.5763699}, {'id': 'https://openalex.org/C518677369', 'wikidata': 'https://www.wikidata.org/wiki/Q202833', 'display_name': 'Social media', 'level': 2, 'score': 0.48086768}, {'id': 'https://openalex.org/C2778407487', 'wikidata': 'https://www.wikidata.org/wiki/Q14565201', 'display_name': 'Altmetrics', 'level': 2, 'score': 0.42256445}, {'id': 'https://openalex.org/C171250308', 'wikidata': 'https://www.wikidata.org/wiki/Q11468', 'display_name': 'Nanotechnology', 'level': 1, 'score': 0.36732924}, {'id': 'https://openalex.org/C126348684', 'wikidata': 'https://www.wikidata.org/wiki/Q3456979', 'display_name': 'Polymer science', 'level': 1, 'score': 0.35855067}, {'id': 'https://openalex.org/C113196181', 'wikidata': 'https://www.wikidata.org/wiki/Q485223', 'display_name': 'Analytical Chemistry (journal)', 'level': 2, 'score': 0.3412315}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.33731693}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.3324374}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.33105808}, {'id': 'https://openalex.org/C161191863', 'wikidata': 'https://www.wikidata.org/wiki/Q199655', 'display_name': 'Library science', 'level': 1, 'score': 0.3242538}, {'id': 'https://openalex.org/C192562407', 'wikidata': 'https://www.wikidata.org/wiki/Q228736', 'display_name': 'Materials science', 'level': 0, 'score': 0.30857593}, {'id': 'https://openalex.org/C136764020', 'wikidata': 'https://www.wikidata.org/wiki/Q466', 'display_name': 'World Wide Web', 'level': 1, 'score': 0.3048515}, {'id': 'https://openalex.org/C521977710', 'wikidata': 'https://www.wikidata.org/wiki/Q81163', 'display_name': 'Polymer', 'level': 2, 'score': 0.23938027}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.21168023}], 'mesh': [], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1021/cr9804689', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S41143188', 'display_name': 'Chemical Reviews', 'issn_l': '0009-2665', 'issn': ['0009-2665', '1520-6890'], '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/11749268', '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': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 49, 'referenced_works': ['https://openalex.org/W126216982', 'https://openalex.org/W1491036007', 'https://openalex.org/W1505821189', 'https://openalex.org/W18607393', 'https://openalex.org/W1904831909', 'https://openalex.org/W1905222245', 'https://openalex.org/W1909521129', 'https://openalex.org/W1922671460', 'https://openalex.org/W1967154743', 'https://openalex.org/W1968405090', 'https://openalex.org/W1970025473', 'https://openalex.org/W1983346802', 'https://openalex.org/W1985000253', 'https://openalex.org/W1991905784', 'https://openalex.org/W1994580497', 'https://openalex.org/W1999976706', 'https://openalex.org/W200253645', 'https://openalex.org/W2014086015', 'https://openalex.org/W2016593827', 'https://openalex.org/W2029315843', 'https://openalex.org/W2036304105', 'https://openalex.org/W2037683751', 'https://openalex.org/W2039609283', 'https://openalex.org/W2046926726', 'https://openalex.org/W2047092961', 'https://openalex.org/W2050028263', 'https://openalex.org/W2055173207', 'https://openalex.org/W2065289999', 'https://openalex.org/W2073805529', 'https://openalex.org/W2076110264', 'https://openalex.org/W2078005129', 'https://openalex.org/W2085547837', 'https://openalex.org/W2091657897', 'https://openalex.org/W2100876068', 'https://openalex.org/W2102645061', 'https://openalex.org/W2103461331', 'https://openalex.org/W2106188689', 'https://openalex.org/W2112033491', 'https://openalex.org/W2112378047', 'https://openalex.org/W2121263299', 'https://openalex.org/W2130129615', 'https://openalex.org/W2172192067', 'https://openalex.org/W2331760793', 'https://openalex.org/W2335204708', 'https://openalex.org/W272645883', 'https://openalex.org/W2949711027', 'https://openalex.org/W356269245', 'https://openalex.org/W4256596031', 'https://openalex.org/W4285719527'], 'related_works': ['https://openalex.org/W4384945517', 'https://openalex.org/W3167885405', 'https://openalex.org/W3150373829', 'https://openalex.org/W2808646405', 'https://openalex.org/W2795304587', 'https://openalex.org/W2748952813', 'https://openalex.org/W2618017038', 'https://openalex.org/W2166317738', 'https://openalex.org/W2073023209', 'https://openalex.org/W1990918794'], 'abstract_inverted_index': {'ADVERTISEMENT': [0], 'RETURN': [1], 'TO': [2], 'ISSUEPREVArticleNEXTPropene': [3], 'Polymerization': [4], 'with': [5, 153, 188], 'Silica-Supported': [6], 'Metallocene/MAO': [7], 'CatalystsGerhard': [8], 'Fink,': [9], 'Bernd': [10, 17], 'Steinmetz,': [11], 'Joachim': [12], 'Zechlin,': [13], 'Christian': [14], 'Przybyla,': [15], 'and': [16, 81, 86, 115, 159, 176, 192, 194], 'TescheView': [18], 'Author': [19], 'Information': [20], 'Max': [21], 'Planck': [22], 'Institut': [23], 'für': [24], 'Kohlenforschung,': [25], 'Kaiser-Wilhelm-Platz': [26], '1,': [27], 'D-45470': [28], 'Mülheim/Ruhr,': [29], 'Germany': [30], 'Cite': [31], 'this:': [32], 'Chem.': [33], 'Rev.': [34], '2000,': [35], '100,': [36], '4,': [37], '1377–1390Publication': [38], 'Date': [39], '(Web):March': [40], '18,': [41], '2000Publication': [42], 'History': [43], 'Received9': [44], 'September': [45], '1999Published': [46], 'online18': [47], 'March': [48], '2000Published': [49], 'inissue': [50], '1': [51], 'April': [52], '2000https://pubs.acs.org/doi/10.1021/cr9804689https://doi.org/10.1021/cr9804689research-articleACS': [53], 'PublicationsCopyright': [54], '©': [55], '2000': [56], 'American': [57], 'Chemical': [58], 'SocietyRequest': [59], 'reuse': [60], 'permissionsArticle': [61], 'Views3879Altmetric-Citations341LEARN': [62], 'ABOUT': [63], 'THESE': [64], 'METRICSArticle': [65], 'Views': [66], 'are': [67, 90, 103], 'the': [68, 99, 104, 133, 144, 157, 160, 165, 172, 178], 'COUNTER-compliant': [69], 'sum': [70], 'of': [71, 106, 132], 'full': [72], 'text': [73], 'article': [74, 138], 'downloads': [75], 'since': [76], 'November': [77], '2008': [78], '(both': [79], 'PDF': [80], 'HTML)': [82], 'across': [83], 'all': [84], 'institutions': [85], 'individuals.': [87], 'These': [88], 'metrics': [89], 'regularly': [91], 'updated': [92, 116], 'to': [93, 98], 'reflect': [94], 'usage': [95], 'leading': [96], 'up': [97], 'last': [100], 'few': [101], 'days.Citations': [102], 'number': [105], 'other': [107], 'articles': [108], 'citing': [109], 'this': [110], 'article,': [111], 'calculated': [112], 'by': [113], 'Crossref': [114, 122], 'daily.': [117], 'Find': [118, 168], 'more': [119, 169], 'information': [120, 170], 'about': [121, 156], 'citation': [123], 'counts.The': [124], 'Altmetric': [125, 173], 'Attention': [126, 174], 'Score': [127, 175], 'is': [128, 180], 'a': [129, 136, 149], 'quantitative': [130], 'measure': [131], 'attention': [134], 'that': [135], 'research': [137], 'has': [139], 'received': [140], 'online.': [141], 'Clicking': [142], 'on': [143, 171], 'donut': [145], 'icon': [146], 'will': [147], 'load': [148], 'page': [150], 'at': [151], 'altmetric.com': [152], 'additional': [154], 'details': [155], 'score': [158, 179], 'social': [161], 'media': [162], 'presence': [163], 'for': [164], 'given': [166], 'article.': [167], 'how': [177], 'calculated.': [181], 'Share': [182, 197], 'Add': [183], 'toView': [184], 'InAdd': [185], 'Full': [186], 'Text': [187], 'ReferenceAdd': [189], 'Description': [190], 'ExportRISCitationCitation': [191], 'abstractCitation': [193], 'referencesMore': [195], 'Options': [196], 'onFacebookTwitterWechatLinked': [198], 'InRedditEmail': [199], 'Other': [200], 'access': [201], 'optionsGet': [202], 'e-Alertsclose': [203], 'SUBJECTS:Catalysts,Polymer': [204], 'particles,Polymerization,Polymers,Silica': [205], 'Get': [206], 'e-Alerts': [207]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2952255184', 'counts_by_year': [{'year': 2024, 'cited_by_count': 2}, {'year': 2023, 'cited_by_count': 11}, {'year': 2022, 'cited_by_count': 10}, {'year': 2021, 'cited_by_count': 11}, {'year': 2020, 'cited_by_count': 6}, {'year': 2019, 'cited_by_count': 9}, {'year': 2018, 'cited_by_count': 10}, {'year': 2017, 'cited_by_count': 21}, {'year': 2016, 'cited_by_count': 11}, {'year': 2015, 'cited_by_count': 9}, {'year': 2014, 'cited_by_count': 12}, {'year': 2013, 'cited_by_count': 21}, {'year': 2012, 'cited_by_count': 14}], 'updated_date': '2024-12-09T04:55:59.095011', 'created_date': '2019-06-27'}