α-Diimine Ni-Catalyzed Ethylene Polymerizations: On the Role of Nickel(I) Intermediates

Nickel(II) complexes with bidentate <i>N</i>,<i>N</i>-α-diimine ligands constitute a broad class of promising catalysts for the synthesis of branched polyethylenes via ethylene homopolymerization. Despite extensive studies devoted to the rational design of new Ni(II) α-diimin...

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Autores principales:	Igor E. Soshnikov, Nina V. Semikolenova, Konstantin P. Bryliakov, Evgenii P. Talsi
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	monovalent nickel α-diimines branched polyethylene NMR EPR active species Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/cf7cc6f80c7c4265883fc6cce6ac269b
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id	oai:doaj.org-article:cf7cc6f80c7c4265883fc6cce6ac269b
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spelling	oai:doaj.org-article:cf7cc6f80c7c4265883fc6cce6ac269b2021-11-25T17:06:38Zα-Diimine Ni-Catalyzed Ethylene Polymerizations: On the Role of Nickel(I) Intermediates10.3390/catal111113862073-4344https://doaj.org/article/cf7cc6f80c7c4265883fc6cce6ac269b2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4344/11/11/1386https://doaj.org/toc/2073-4344Nickel(II) complexes with bidentate <i>N</i>,<i>N</i>-α-diimine ligands constitute a broad class of promising catalysts for the synthesis of branched polyethylenes via ethylene homopolymerization. Despite extensive studies devoted to the rational design of new Ni(II) α-diimines with desired catalytic properties, the polymerization mechanism has not been fully rationalized. In contrast to the well-characterized cationic Ni(II) active sites of ethylene polymerization and their precursors, the structure and role of Ni(I) species in the polymerization process continues to be a “black box”. This perspective discusses recent advances in the understanding of the nature and role of monovalent nickel complexes formed in Ni(II) α-diimine-based ethylene polymerization catalyst systems.Igor E. SoshnikovNina V. SemikolenovaKonstantin P. BryliakovEvgenii P. TalsiMDPI AGarticlemonovalent nickelα-diiminesbranched polyethyleneNMREPRactive speciesChemical technologyTP1-1185ChemistryQD1-999ENCatalysts, Vol 11, Iss 1386, p 1386 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	monovalent nickel α-diimines branched polyethylene NMR EPR active species Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	monovalent nickel α-diimines branched polyethylene NMR EPR active species Chemical technology TP1-1185 Chemistry QD1-999 Igor E. Soshnikov Nina V. Semikolenova Konstantin P. Bryliakov Evgenii P. Talsi α-Diimine Ni-Catalyzed Ethylene Polymerizations: On the Role of Nickel(I) Intermediates
description	Nickel(II) complexes with bidentate <i>N</i>,<i>N</i>-α-diimine ligands constitute a broad class of promising catalysts for the synthesis of branched polyethylenes via ethylene homopolymerization. Despite extensive studies devoted to the rational design of new Ni(II) α-diimines with desired catalytic properties, the polymerization mechanism has not been fully rationalized. In contrast to the well-characterized cationic Ni(II) active sites of ethylene polymerization and their precursors, the structure and role of Ni(I) species in the polymerization process continues to be a “black box”. This perspective discusses recent advances in the understanding of the nature and role of monovalent nickel complexes formed in Ni(II) α-diimine-based ethylene polymerization catalyst systems.
format	article
author	Igor E. Soshnikov Nina V. Semikolenova Konstantin P. Bryliakov Evgenii P. Talsi
author_facet	Igor E. Soshnikov Nina V. Semikolenova Konstantin P. Bryliakov Evgenii P. Talsi
author_sort	Igor E. Soshnikov
title	α-Diimine Ni-Catalyzed Ethylene Polymerizations: On the Role of Nickel(I) Intermediates
title_short	α-Diimine Ni-Catalyzed Ethylene Polymerizations: On the Role of Nickel(I) Intermediates
title_full	α-Diimine Ni-Catalyzed Ethylene Polymerizations: On the Role of Nickel(I) Intermediates
title_fullStr	α-Diimine Ni-Catalyzed Ethylene Polymerizations: On the Role of Nickel(I) Intermediates
title_full_unstemmed	α-Diimine Ni-Catalyzed Ethylene Polymerizations: On the Role of Nickel(I) Intermediates
title_sort	α-diimine ni-catalyzed ethylene polymerizations: on the role of nickel(i) intermediates
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/cf7cc6f80c7c4265883fc6cce6ac269b
work_keys_str_mv	AT igoresoshnikov adiiminenicatalyzedethylenepolymerizationsontheroleofnickeliintermediates AT ninavsemikolenova adiiminenicatalyzedethylenepolymerizationsontheroleofnickeliintermediates AT konstantinpbryliakov adiiminenicatalyzedethylenepolymerizationsontheroleofnickeliintermediates AT evgeniiptalsi adiiminenicatalyzedethylenepolymerizationsontheroleofnickeliintermediates
_version_	1718412741977309184

α-Diimine Ni-Catalyzed Ethylene Polymerizations: On the Role of Nickel(I) Intermediates

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