{"id":"https://openalex.org/W2016947237","doi":"https://doi.org/10.1021/om0496434","title":"Preparation of an Active Neodymium Catalyst for Regioselective Butadienecis-Polymerization Supported by a Dianionic Modification of the 2,6-Diiminopyridine Ligand","display_name":"Preparation of an Active Neodymium Catalyst for Regioselective Butadienecis-Polymerization Supported by a Dianionic Modification of the 2,6-Diiminopyridine Ligand","publication_year":2004,"publication_date":"2004-09-08","ids":{"openalex":"https://openalex.org/W2016947237","doi":"https://doi.org/10.1021/om0496434","mag":"2016947237"},"language":"en","primary_location":{"id":"doi:10.1021/om0496434","doi":"https://doi.org/10.1021/om0496434","is_oa":false,"landing_page_url":"https://doi.org/10.1021/om0496434","pdf_url":null,"source":{"id":"https://openalex.org/S4924609","display_name":"Organometallics","issn_l":"0276-7333","issn":["0276-7333","1520-6041"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-1","norway-2","poland-100","russia-white-list-1"],"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":"Organometallics","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5111715466","display_name":"H. Sugiyama","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I153718931","display_name":"University of Ottawa","ror":"https://ror.org/03c4mmv16","country_code":"CA","type":"education","lineage":["https://openalex.org/I153718931"]},{"id":"https://openalex.org/I4210133143","display_name":"Dow Chemical (United States)","ror":"https://ror.org/032hx4q18","country_code":"US","type":"company","lineage":["https://openalex.org/I4210133143"]}],"countries":["CA","US"],"is_corresponding":false,"raw_author_name":"Hiroyasu Sugiyama","raw_affiliation_strings":["Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada, Chemical Sciences Capability, The Dow Chemical Company, Midland, Michigan 48674, and Dow Olefinverbund GmbH (An Affiliate of The Dow Chemical Company), Werk Schkopau, Merseburg, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada, Chemical Sciences Capability, The Dow Chemical Company, Midland, Michigan 48674, and Dow Olefinverbund GmbH (An Affiliate of The Dow Chemical Company), Werk Schkopau, Merseburg, Germany","institution_ids":["https://openalex.org/I153718931","https://openalex.org/I4210133143"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063225492","display_name":"Sandro Gambarotta","orcid":"https://orcid.org/0000-0001-5091-7667","observed_orcids":["https://orcid.org/0000-0001-5091-7667"]},"institutions":[{"id":"https://openalex.org/I153718931","display_name":"University of Ottawa","ror":"https://ror.org/03c4mmv16","country_code":"CA","type":"education","lineage":["https://openalex.org/I153718931"]},{"id":"https://openalex.org/I4210133143","display_name":"Dow Chemical (United States)","ror":"https://ror.org/032hx4q18","country_code":"US","type":"company","lineage":["https://openalex.org/I4210133143"]}],"countries":["CA","US"],"is_corresponding":false,"raw_author_name":"Sandro Gambarotta","raw_affiliation_strings":["Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada, Chemical Sciences Capability, The Dow Chemical Company, Midland, Michigan 48674, and Dow Olefinverbund GmbH (An Affiliate of The Dow Chemical Company), Werk Schkopau, Merseburg, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada, Chemical Sciences Capability, The Dow Chemical Company, Midland, Michigan 48674, and Dow Olefinverbund GmbH (An Affiliate of The Dow Chemical Company), Werk Schkopau, Merseburg, Germany","institution_ids":["https://openalex.org/I153718931","https://openalex.org/I4210133143"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013225612","display_name":"Glenn P. A. Yap","orcid":"https://orcid.org/0000-0003-0385-387X","observed_orcids":["https://orcid.org/0000-0003-0385-387X"]},"institutions":[{"id":"https://openalex.org/I153718931","display_name":"University of Ottawa","ror":"https://ror.org/03c4mmv16","country_code":"CA","type":"education","lineage":["https://openalex.org/I153718931"]},{"id":"https://openalex.org/I4210133143","display_name":"Dow Chemical (United States)","ror":"https://ror.org/032hx4q18","country_code":"US","type":"company","lineage":["https://openalex.org/I4210133143"]}],"countries":["CA","US"],"is_corresponding":false,"raw_author_name":"Glenn P. A. Yap","raw_affiliation_strings":["Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada, Chemical Sciences Capability, The Dow Chemical Company, Midland, Michigan 48674, and Dow Olefinverbund GmbH (An Affiliate of The Dow Chemical Company), Werk Schkopau, Merseburg, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada, Chemical Sciences Capability, The Dow Chemical Company, Midland, Michigan 48674, and Dow Olefinverbund GmbH (An Affiliate of The Dow Chemical Company), Werk Schkopau, Merseburg, Germany","institution_ids":["https://openalex.org/I153718931","https://openalex.org/I4210133143"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044803370","display_name":"David R. Wilson","orcid":"https://orcid.org/0000-0002-8708-4248","observed_orcids":["https://orcid.org/0000-0002-8708-4248"]},"institutions":[{"id":"https://openalex.org/I153718931","display_name":"University of Ottawa","ror":"https://ror.org/03c4mmv16","country_code":"CA","type":"education","lineage":["https://openalex.org/I153718931"]},{"id":"https://openalex.org/I4210133143","display_name":"Dow Chemical (United States)","ror":"https://ror.org/032hx4q18","country_code":"US","type":"company","lineage":["https://openalex.org/I4210133143"]}],"countries":["CA","US"],"is_corresponding":false,"raw_author_name":"David R. Wilson","raw_affiliation_strings":["Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada, Chemical Sciences Capability, The Dow Chemical Company, Midland, Michigan 48674, and Dow Olefinverbund GmbH (An Affiliate of The Dow Chemical Company), Werk Schkopau, Merseburg, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada, Chemical Sciences Capability, The Dow Chemical Company, Midland, Michigan 48674, and Dow Olefinverbund GmbH (An Affiliate of The Dow Chemical Company), Werk Schkopau, Merseburg, Germany","institution_ids":["https://openalex.org/I153718931","https://openalex.org/I4210133143"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5016972484","display_name":"Sven K.\u2010H. Thiele","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I153718931","display_name":"University of Ottawa","ror":"https://ror.org/03c4mmv16","country_code":"CA","type":"education","lineage":["https://openalex.org/I153718931"]},{"id":"https://openalex.org/I4210133143","display_name":"Dow Chemical (United States)","ror":"https://ror.org/032hx4q18","country_code":"US","type":"company","lineage":["https://openalex.org/I4210133143"]}],"countries":["CA","US"],"is_corresponding":false,"raw_author_name":"Sven K.-H. Thiele","raw_affiliation_strings":["Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada, Chemical Sciences Capability, The Dow Chemical Company, Midland, Michigan 48674, and Dow Olefinverbund GmbH (An Affiliate of The Dow Chemical Company), Werk Schkopau, Merseburg, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada, Chemical Sciences Capability, The Dow Chemical Company, Midland, Michigan 48674, and Dow Olefinverbund GmbH (An Affiliate of The Dow Chemical Company), Werk Schkopau, Merseburg, Germany","institution_ids":["https://openalex.org/I153718931","https://openalex.org/I4210133143"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":4500,"currency":"USD","value_usd":4500},"apc_paid":null,"fwci":3.6446,"has_fulltext":false,"cited_by_count":63,"citation_normalized_percentile":{"value":0.93474722,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"23","issue":"21","first_page":"5054","last_page":"5061"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10092","display_name":"Organometallic Complex Synthesis and Catalysis","score":0.9932000041007996,"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":0.9932000041007996,"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/T12228","display_name":"Coordination Chemistry and Organometallics","score":0.003000000026077032,"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/T10405","display_name":"Advanced Polymer Synthesis and Characterization","score":0.0008999999845400453,"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/neodymium-catalyst","display_name":"neodymium catalyst","score":0.843999981880188},{"id":"https://openalex.org/keywords/regioselectivity","display_name":"regioselectivity","score":0.902999997138977},{"id":"https://openalex.org/keywords/ligand-deprotonation","display_name":"ligand deprotonation","score":0.5049999952316284}],"concepts":[{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.8382823467254639},{"id":"https://openalex.org/C118629725","wikidata":"https://www.wikidata.org/wiki/Q2686738","display_name":"Deprotonation","level":3,"score":0.7072635293006897},{"id":"https://openalex.org/C116569031","wikidata":"https://www.wikidata.org/wiki/Q899107","display_name":"Ligand (biochemistry)","level":3,"score":0.6191220879554749},{"id":"https://openalex.org/C155647269","wikidata":"https://www.wikidata.org/wiki/Q243455","display_name":"Medicinal chemistry","level":1,"score":0.5669572353363037},{"id":"https://openalex.org/C2780263894","wikidata":"https://www.wikidata.org/wiki/Q335268","display_name":"Alkyl","level":2,"score":0.5554766654968262},{"id":"https://openalex.org/C59759590","wikidata":"https://www.wikidata.org/wiki/Q2275927","display_name":"Regioselectivity","level":3,"score":0.4926159977912903},{"id":"https://openalex.org/C164361826","wikidata":"https://www.wikidata.org/wiki/Q177604","display_name":"Alkylation","level":3,"score":0.4788658320903778},{"id":"https://openalex.org/C2776573223","wikidata":"https://www.wikidata.org/wiki/Q408057","display_name":"Imine","level":3,"score":0.4578996002674103},{"id":"https://openalex.org/C71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","level":1,"score":0.4015624523162842},{"id":"https://openalex.org/C161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","level":2,"score":0.3005903959274292},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.16926205158233643},{"id":"https://openalex.org/C145148216","wikidata":"https://www.wikidata.org/wiki/Q36496","display_name":"Ion","level":2,"score":0.08082133531570435},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C170493617","wikidata":"https://www.wikidata.org/wiki/Q208467","display_name":"Receptor","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1021/om0496434","doi":"https://doi.org/10.1021/om0496434","is_oa":false,"landing_page_url":"https://doi.org/10.1021/om0496434","pdf_url":null,"source":{"id":"https://openalex.org/S4924609","display_name":"Organometallics","issn_l":"0276-7333","issn":["0276-7333","1520-6041"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-1","norway-2","poland-100","russia-white-list-1"],"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":"Organometallics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320334593","display_name":"Natural Sciences and Engineering Research Council of Canada","ror":"https://ror.org/01h531d29"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":44,"referenced_works":["https://openalex.org/W35269536","https://openalex.org/W52744965","https://openalex.org/W385572707","https://openalex.org/W1522126563","https://openalex.org/W1522689314","https://openalex.org/W1523592085","https://openalex.org/W1559059756","https://openalex.org/W1911837735","https://openalex.org/W1966061406","https://openalex.org/W1971456410","https://openalex.org/W1979206455","https://openalex.org/W1989534936","https://openalex.org/W1994438262","https://openalex.org/W2001678787","https://openalex.org/W2019212366","https://openalex.org/W2020616488","https://openalex.org/W2021911875","https://openalex.org/W2036758586","https://openalex.org/W2055441069","https://openalex.org/W2056062327","https://openalex.org/W2058994509","https://openalex.org/W2059205384","https://openalex.org/W2060287442","https://openalex.org/W2061128141","https://openalex.org/W2063106402","https://openalex.org/W2067028403","https://openalex.org/W2067946377","https://openalex.org/W2069778813","https://openalex.org/W2071635280","https://openalex.org/W2073767617","https://openalex.org/W2075163421","https://openalex.org/W2076469261","https://openalex.org/W2083267287","https://openalex.org/W2084576763","https://openalex.org/W2091049173","https://openalex.org/W2106454467","https://openalex.org/W2125474243","https://openalex.org/W2127558285","https://openalex.org/W2139384391","https://openalex.org/W2144332006","https://openalex.org/W2164542929","https://openalex.org/W2243835837","https://openalex.org/W2515136802","https://openalex.org/W2943163742"],"related_works":["https://openalex.org/W2384868807","https://openalex.org/W1994438262","https://openalex.org/W2038690719","https://openalex.org/W2061142777","https://openalex.org/W2048902990","https://openalex.org/W2079936309","https://openalex.org/W2009680963","https://openalex.org/W35269536","https://openalex.org/W2354585203","https://openalex.org/W2364648687"],"abstract_inverted_index":{"Treatment":[0],"of":[1,24,57,69,133,194,197,201,204,356],"the":[2,31,58,64,105,131,134,145,192,202,228,238,338,353],"2,6-diiminopyridine":[3],"ligand":[4,230],"2,6-{[2,6-(i-Pr)":[5],"2":[6,15,22,28,34,41,43,49,78,85,87,93,95,109,116,118,124,149,156,158,198,244,251,253,259,283,290,292,300,302,309,316,318,325],"C":[7,35,79,110,150,245,284,310],"6":[8,36,80,111,151,246,285,311,328,344],"H":[9,18,37,46,81,90,112,121,152,161,167,247,256,286,295,312,321],"3":[10,13,19,26,38,47,73,75,82,91,113,122,126,153,162,164,166,170,173,206,208,214,218,248,257,262,264,287,296,298,313,322],"]N":[11],"C(CH":[12],")}":[14,42,86,117,157,252,291,317],"(C":[16,44,88,119,159,254,293,319],"5":[17,45,89,120,160,168,255,294,305,320,342],"N)":[20],"with":[21,71,136,141,209,226,279],"equiv":[23],"Me":[25,213,334],"SiCH":[27,215],"Li":[29],"afforded":[30,281],"corresponding":[32,106],"{[2,6-{[2,6-(i-Pr)":[33,77,108,148,282,308],"]N-C":[39,83,114,154,249,288,314],"(CH":[40,84,115,155,250,261,289,315],"N)]":[48],"-":[50],"(":[51,97,172,266,304,327],"1":[52,70,232],")":[53,263,268,299,306,329],"dianion":[54],"via":[55],"deprotonation":[56],"two":[59,65],"methyl":[60],"groups":[61],"attached":[62],"to":[63,143,235],"imine":[66],"functions.":[67],"Reaction":[68],"NdCl":[72,205],"(THF)":[74,207,324],"yielded":[76],"N)]Nd(THF)}(\u03bc-Cl)":[92],"[Li(THF)":[94,301],"]\u00b70.5(hexane)":[96],"2a":[98,348],"),":[99,174],"whose":[100],"recrystallization":[101],"from":[102],"DME":[103],"gave":[104],"ionic":[107],"N)]NdCl":[123],"(DME)}{Li(DME)":[125],"](":[127],"2b":[128,142],").":[129],"With":[130],"exception":[132],"reaction":[135],"(allyl)MgBr,":[137],"which":[138],"proceeded":[139],"readily":[140],"form":[144],"allyl":[146],"derivative":[147,242],"N)]Nd(\u03b7":[163],"-C":[165],")Br}{Li(DME)":[169],"}":[171],"compounds":[175],"2a,":[176],"b":[177],"are":[178,349],"not":[179],"suitable":[180],"starting":[181],"substrates":[182],"for":[183,191,352],"further":[184],"alkylation":[185],"reactions.":[186],"A":[187],"viable":[188],"synthetic":[189,277],"strategy":[190],"preparation":[193],"alkyl":[195,241],"derivatives":[196],"consisted":[199],"instead":[200],"pretreatment":[203],"RLi":[210],"[R":[211],"=":[212,331],"2,":[216],"CH":[217],"]":[219,303,326],"at":[220],"low":[221],"T":[222],"followed":[223],"by":[224],"treatment":[225],"either":[227],"diimine":[229],"or":[231],".":[233],"According":[234],"this":[236],"procedure,":[237],"terminally":[239],"bound":[240],"[2,6-{[2,6-(i-Pr)":[243],"N)]Nd[CH":[258],"Si":[260],"](THF)":[265],"4":[267],"was":[269],"prepared":[270],"and":[271,307,343],"subsequently":[272],"crystallographically":[273],"characterized.":[274],"The":[275],"same":[276],"procedure":[278],"MeLi":[280],"N)]Nd}(\u03bc-CH":[297],"N)]Nd}(\u03bc-Cl)(\u03bc-X)[Li":[323],"[X":[330],"Cl":[332],"53%,":[333],"47%]":[335],"depending":[336],"on":[337],"MeLi/Nd":[339],"ratio.":[340],"Both":[341],"as":[345,347],"well":[346],"potent":[350],"catalysts":[351],"cis":[354],"-polymerization":[355],"butadiene.":[357]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":4},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":4},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":2}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-06-24T00:00:00"}
