{"id":"https://openalex.org/W2002248154","doi":"https://doi.org/10.1021/ja9809859","title":"Reaction Chemistry of Sterically Crowded Tris(pentamethylcyclopentadienyl)samarium1","display_name":"Reaction Chemistry of Sterically Crowded Tris(pentamethylcyclopentadienyl)samarium1","publication_year":1998,"publication_date":"1998-08-28","ids":{"openalex":"https://openalex.org/W2002248154","doi":"https://doi.org/10.1021/ja9809859","mag":"2002248154"},"language":"en","primary_location":{"id":"doi:10.1021/ja9809859","doi":"https://doi.org/10.1021/ja9809859","is_oa":false,"landing_page_url":"https://doi.org/10.1021/ja9809859","pdf_url":null,"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,"listed_in":["cwts-core","jufo-3","ki-jl-3","medline","norway-2"],"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of the American Chemical Society","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5089479056","display_name":"William J. Evans","orcid":"https://orcid.org/0000-0002-0651-418X","observed_orcids":["https://orcid.org/0000-0002-0651-418X"]},"institutions":[{"id":"https://openalex.org/I204250578","display_name":"University of California, Irvine","ror":"https://ror.org/04gyf1771","country_code":"US","type":"education","lineage":["https://openalex.org/I204250578"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"William J. Evans","raw_affiliation_strings":["Contribution from the Department of Chemistry, University of California-Irvine, Irvine, California 92697","Contribution from the Department of Chemistry, University of California, Irvine, Irvine, California 92697"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Contribution from the Department of Chemistry, University of California-Irvine, Irvine, California 92697","institution_ids":["https://openalex.org/I204250578"]},{"raw_affiliation_string":"Contribution from the Department of Chemistry, University of California, Irvine, Irvine, California 92697","institution_ids":["https://openalex.org/I204250578"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023679461","display_name":"Kevin J. Forrestal","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I204250578","display_name":"University of California, Irvine","ror":"https://ror.org/04gyf1771","country_code":"US","type":"education","lineage":["https://openalex.org/I204250578"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Kevin J. Forrestal","raw_affiliation_strings":["Contribution from the Department of Chemistry, University of California-Irvine, Irvine, California 92697","Contribution from the Department of Chemistry, University of California, Irvine, Irvine, California 92697"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Contribution from the Department of Chemistry, University of California-Irvine, Irvine, California 92697","institution_ids":["https://openalex.org/I204250578"]},{"raw_affiliation_string":"Contribution from the Department of Chemistry, University of California, Irvine, Irvine, California 92697","institution_ids":["https://openalex.org/I204250578"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5011086784","display_name":"Joseph W. Ziller","orcid":"https://orcid.org/0000-0001-7404-950X","observed_orcids":["https://orcid.org/0000-0001-7404-950X"]},"institutions":[{"id":"https://openalex.org/I204250578","display_name":"University of California, Irvine","ror":"https://ror.org/04gyf1771","country_code":"US","type":"education","lineage":["https://openalex.org/I204250578"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Joseph W. Ziller","raw_affiliation_strings":["Contribution from the Department of Chemistry, University of California-Irvine, Irvine, California 92697","Contribution from the Department of Chemistry, University of California, Irvine, Irvine, California 92697"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Contribution from the Department of Chemistry, University of California-Irvine, Irvine, California 92697","institution_ids":["https://openalex.org/I204250578"]},{"raw_affiliation_string":"Contribution from the Department of Chemistry, University of California, Irvine, Irvine, California 92697","institution_ids":["https://openalex.org/I204250578"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I204250578"],"apc_list":{"value":4500,"currency":"USD","value_usd":4500},"apc_paid":null,"fwci":4.9658,"has_fulltext":false,"cited_by_count":154,"citation_normalized_percentile":{"value":0.95982025,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":99},"biblio":{"volume":"120","issue":"36","first_page":"9273","last_page":"9282"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10092","display_name":"Organometallic Complex Synthesis and Catalysis","score":0.9951000213623047,"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":0.9951000213623047,"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/T11746","display_name":"Inorganic and Organometallic Chemistry","score":0.0017999999690800905,"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/T10807","display_name":"Synthesis and characterization of novel inorganic/organometallic compounds","score":0.0015999999595806003,"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/samarium-complexes","display_name":"samarium complexes","score":0.6840000152587891},{"id":"https://openalex.org/keywords/chemical-reactions","display_name":"chemical reactions","score":0.49300000071525574},{"id":"https://openalex.org/keywords/co-insertion","display_name":"CO insertion","score":0.5320000052452087},{"id":"https://openalex.org/keywords/hydrogenolysis","display_name":"hydrogenolysis","score":0.7440000176429749},{"id":"https://openalex.org/keywords/nitrile-insertion","display_name":"nitrile insertion","score":0.8740000128746033},{"id":"https://openalex.org/keywords/cyclooctatetraene","display_name":"cyclooctatetraene","score":0.7960000038146973},{"id":"https://openalex.org/keywords/azobenzene","display_name":"azobenzene","score":0.9700000286102295},{"id":"https://openalex.org/keywords/phosphine-reduction","display_name":"phosphine reduction","score":0.6570000052452087},{"id":"https://openalex.org/keywords/phosphine-oxide-reduction","display_name":"phosphine oxide reduction","score":0.49799999594688416},{"id":"https://openalex.org/keywords/zwitterion","display_name":"zwitterion","score":0.4729999899864197}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.9336271286010742},{"id":"https://openalex.org/C2781333609","wikidata":"https://www.wikidata.org/wiki/Q900926","display_name":"Cyclooctatetraene","level":3,"score":0.7922435998916626},{"id":"https://openalex.org/C201194858","wikidata":"https://www.wikidata.org/wiki/Q898238","display_name":"Steric effects","level":2,"score":0.6483343839645386},{"id":"https://openalex.org/C155647269","wikidata":"https://www.wikidata.org/wiki/Q243455","display_name":"Medicinal chemistry","level":1,"score":0.5196784138679504},{"id":"https://openalex.org/C2776910235","wikidata":"https://www.wikidata.org/wiki/Q18574","display_name":"Reactivity (psychology)","level":3,"score":0.49948859214782715},{"id":"https://openalex.org/C71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","level":1,"score":0.4680715799331665},{"id":"https://openalex.org/C2780446808","wikidata":"https://www.wikidata.org/wiki/Q413676","display_name":"Metallocene","level":4,"score":0.45005062222480774},{"id":"https://openalex.org/C2776701986","wikidata":"https://www.wikidata.org/wiki/Q278332","display_name":"Tetrahydrofuran","level":3,"score":0.44606533646583557},{"id":"https://openalex.org/C2781083472","wikidata":"https://www.wikidata.org/wiki/Q5891406","display_name":"Homoleptic","level":3,"score":0.4444967210292816},{"id":"https://openalex.org/C32909587","wikidata":"https://www.wikidata.org/wiki/Q11369","display_name":"Molecule","level":2,"score":0.43269768357276917},{"id":"https://openalex.org/C8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","level":1,"score":0.340170681476593},{"id":"https://openalex.org/C44228677","wikidata":"https://www.wikidata.org/wiki/Q181898","display_name":"Polymerization","level":3,"score":0.2175290286540985},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.12357482314109802},{"id":"https://openalex.org/C544153396","wikidata":"https://www.wikidata.org/wiki/Q11426","display_name":"Metal","level":2,"score":0.11460325121879578},{"id":"https://openalex.org/C2780471494","wikidata":"https://www.wikidata.org/wiki/Q146505","display_name":"Solvent","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},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1021/ja9809859","doi":"https://doi.org/10.1021/ja9809859","is_oa":false,"landing_page_url":"https://doi.org/10.1021/ja9809859","pdf_url":null,"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,"listed_in":["cwts-core","jufo-3","ki-jl-3","medline","norway-2"],"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of the American Chemical Society","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":60,"referenced_works":["https://openalex.org/W227208353","https://openalex.org/W234238458","https://openalex.org/W252983437","https://openalex.org/W651089440","https://openalex.org/W957361760","https://openalex.org/W1533733756","https://openalex.org/W1594288698","https://openalex.org/W1968588610","https://openalex.org/W1971332058","https://openalex.org/W1971910678","https://openalex.org/W1979288853","https://openalex.org/W1981141489","https://openalex.org/W1982125147","https://openalex.org/W1986786015","https://openalex.org/W1989300508","https://openalex.org/W1990852473","https://openalex.org/W1991069230","https://openalex.org/W1994596533","https://openalex.org/W1997392217","https://openalex.org/W2002750458","https://openalex.org/W2007845610","https://openalex.org/W2008151629","https://openalex.org/W2015646082","https://openalex.org/W2019964856","https://openalex.org/W2024866363","https://openalex.org/W2026792423","https://openalex.org/W2027002603","https://openalex.org/W2030160323","https://openalex.org/W2030202957","https://openalex.org/W2030958085","https://openalex.org/W2033327084","https://openalex.org/W2033407740","https://openalex.org/W2033660419","https://openalex.org/W2033981579","https://openalex.org/W2041480454","https://openalex.org/W2042466687","https://openalex.org/W2043718991","https://openalex.org/W2044464054","https://openalex.org/W2047401162","https://openalex.org/W2048473572","https://openalex.org/W2052664824","https://openalex.org/W2053988123","https://openalex.org/W2061677431","https://openalex.org/W2062283855","https://openalex.org/W2071044541","https://openalex.org/W2076203832","https://openalex.org/W2077257020","https://openalex.org/W2077954215","https://openalex.org/W2081204399","https://openalex.org/W2085968885","https://openalex.org/W2097952694","https://openalex.org/W2103455441","https://openalex.org/W2168938609","https://openalex.org/W2501793602","https://openalex.org/W2623996174","https://openalex.org/W2916235547","https://openalex.org/W2940533970","https://openalex.org/W2950749413","https://openalex.org/W4245397646","https://openalex.org/W4247183660"],"related_works":["https://openalex.org/W2047849339","https://openalex.org/W2033454122","https://openalex.org/W1981974791","https://openalex.org/W2019169439","https://openalex.org/W1977946610","https://openalex.org/W1977040729","https://openalex.org/W2047010115","https://openalex.org/W4318618782","https://openalex.org/W2334411139","https://openalex.org/W2314062645"],"abstract_inverted_index":{"Although":[0],"(C":[1,55,75,142,185,195,205,258,275,304,331,341,351,363,388],"5":[2,4,56,58,76,78,90,92,103,105,111,113,120,122,143,145,153,173,175,186,188,196,198,206,208,212,214,249,251,259,261,276,278,283,285,305,307,319,321,332,334,342,344,352,354,364,366,377,379,389,391],"Me":[3,57,77,91,104,112,121,144,152,174,187,197,207,213,250,260,277,284,306,320,333,343,353,365,371,378,390],")":[5,59,79,106,146,176,189,193,209,252,262,279,286,308,322,339,345,355,361,367,380,392],"3":[6,35,60,263,268,293,372,383,393],"Sm":[7,61,264,394],"is":[8,85,126,404],"an":[9,86],"extremely":[10],"sterically":[11],"crowded":[12],"molecule,":[13],"it":[14,67,98],"displays":[15],"high":[16],"reactivity":[17],"with":[18,138,167,220],"a":[19,69,127,157,160,225,232,236,240,245,311,420],"variety":[20],"of":[21,73,399,417],"substrates":[22],"including":[23],"CO,":[24],"THF,":[25],"ethylene,":[26],"hydrogen,":[27],"nitriles,":[28],"isonitriles,":[29],"isocyanates,":[30],"1,3,5,7-cyclooctatetraene,":[31],"azobenzene,":[32],"and":[33,49,217,239,281,310,340,362,369],"Ph":[34,267,292,359],"P":[36,269,294],"E":[37,295],"(E":[38,296],"=":[39,297],"O,":[40],"S,":[41,298],"Se).":[42],"The":[43],"reactions":[44],"include":[45],"polymerization,":[46],"insertion,":[47],"ring-opening,":[48],"reduction.":[50],"Depending":[51],"on":[52,412],"the":[53,100,118,131,255,397],"substrate,":[54],"can":[62,228],"react":[63],"(1)":[64],"as":[65,96,407,409],"if":[66,97],"were":[68,99],"bulky":[70],"alkyl":[71],"complex":[72,312],"formula":[74],"2":[80,107,147,149,169,177,190,192,210,287,289,323,325,356,358,360,381,413],"SmR":[81],"in":[82,116],"which":[83,117,155,227,313,418],"R":[84],"\u03b7":[87],"1":[88,247],"-C":[89,248],"group":[93],"or":[94],"(2)":[95],"zwitterion":[101],"[(C":[102,172,282,318,376],"Sm]":[108,288],"+":[109],"[C":[110,119],"]":[114,123],"-":[115,124],"component":[125],"one-electron":[128],"reductant.":[129],"In":[130],"former":[132],"mode,":[133],"this":[134],"compound":[135],"(a)":[136,266],"reacts":[137,219],"CO":[139],"to":[140,170,183,203,222,271,300,316,329,349,374],"form":[141,171,184,204,223,272,301,317,330,350,375],"Sm(O":[148],"C":[150],"7":[151],"),":[154],"has":[156,419],"ligand":[158],"containing":[159],"nonclassical":[161],"carbocationic":[162],"center,":[163],"(b)":[164,291,327],"undergoes":[165],"hydrogenolysis":[166],"H":[168,337],"Sm(\u03bc-H)]":[178],"2,":[179,216,280,309,346,368],"(c)":[180,347],"ring-opens":[181],"THF":[182,315],"Sm[O(CH":[191],"4":[194,386],")](THF),":[199],"(d)":[200,370],"inserts":[201],"PhCN":[202],"Sm[NC(Ph)(C":[211],")](NCPh),":[215],"(e)":[218],"PhNCO":[221,238,241],"3,":[224,274,303,385],"product":[226],"be":[229],"rationalized":[230],"by":[231],"C\u2212N":[233],"coupling":[234],"between":[235],"coordinated":[237],"unit":[242],"inserted":[243],"into":[244],"Sm(\u03b7":[246],"bond.":[253],"On":[254],"other":[256],"hand,":[257],"reduces":[265],"O":[270],"PPh":[273,302],"(\u03bc-O),":[290],"Se)":[299],"adds":[314],"Sm(THF)]":[324],"(\u03bc-E),":[326],"cyclooctatetraene":[328],")Sm(C":[335],"8":[336,338],"azobenzene":[348],"Sm(N":[357],"CNC":[373],"Sm(\u03bc-CN)(CNCMe":[382],")]":[384],".":[387],"also":[395],"initiates":[396],"polymerization":[398],"ethylene.":[400],"This":[401],"reaction":[402],"chemistry":[403],"described":[405],"here":[406],"well":[408],"structural":[410],"data":[411],"\u2212":[414],"4,":[415],"each":[416],"formal":[421],"eight-coordinate":[422],"bent":[423],"metallocene":[424],"geometry":[425],"around":[426],"samarium.":[427]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":6},{"year":2014,"cited_by_count":6},{"year":2013,"cited_by_count":11},{"year":2012,"cited_by_count":4}],"updated_date":"2026-08-25T07:29:55.448023","created_date":"2025-10-10T00:00:00"}
