Vanadium(III)-Catalyzed Polymerization of α-Olefins: Detailed NMR Spectroscopic Characterization of Intermediates Modeling the Active Species of Polymerization | Sciact - CRIS-system of Boreskov Institute of Catalysis

Vanadium(III)-Catalyzed Polymerization of α-Olefins: Detailed NMR Spectroscopic Characterization of Intermediates Modeling the Active Species of Polymerization Full article

Journal

ChemCatChem
ISSN: 1867-3880 , E-ISSN: 1867-3899

Output data

Year: 2017, Volume: 9, Number: 7, Pages: 1253-1260 Pages count : 8 DOI: 10.1002/cctc.201601634

Tags

N ligands, NMR spectroscopy, polymerization, reaction mechanism, vanadium

Authors

Soshnikov Igor E. ^1,2 , Semikolenova Nina V. ¹ , Bryliakov Konstantin P. ^1,2 , Zakharov Vladimir A. ^1,2 , Talsi Evgenii P. ^1,2

Affiliations

1	Federal Agency for Scientific Organizations, Siberian Branch of the Russian Academy of Sciences, Boreskov Institute of Catalysis, 630090, Novosibirsk, pr. Akad. Lavrent’eva, 5 (Russian Federation)
2	The Ministry of Education and Science of the Russian Federation, Novosibirsk State University, 630090, Novosibirsk, Pirogova street, 2 (Russian Federation)

Funding (4)

1	Russian Foundation for Basic Research	16-53-53014
2	Russian Foundation for Basic Research	16-03-00236
3	Federal Agency for Scientific Organizations	0303-2016-0009
4	The Ministry of Education and Science of the Russian Federation

The ion pairs formed upon the activation of bis(imino)pyridine complex LVCl3 (L=2,6-bis[1-(2,6-dimethylphenylimino)ethyl]pyridine) with AlMe2Cl and AlMe3/[Ph3C][B(C6F5)4] were characterized in detail by 1H and 2H NMR spectroscopy, including the first NMR observation of the VIII−CH3 group. The following ion pairs were identified: [L(Cl)VIII(μ-Cl)2AlMe2]+[A]−, [L(Me)VIII(μ-Cl)2AlMe2]+[A]−, [LVIIICl2(THF)]+[A]−, and [LVIII(Cl)Me(THF)]+[A]− ([A]−=[AlMe3Cl]− or [B(C6F5)4]−, THF=tetrahydrofuran). The nature of the ethylene polymerization active species is discussed.

Soshnikov I.E. , Semikolenova N.V. , Bryliakov K.P. , Zakharov V.A. , Talsi E.P.
Vanadium(III)-Catalyzed Polymerization of α-Olefins: Detailed NMR Spectroscopic Characterization of Intermediates Modeling the Active Species of Polymerization
ChemCatChem. 2017. V.9. N7. P.1253-1260. DOI: 10.1002/cctc.201601634 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Dec 14, 2016
Accepted:	Jan 11, 2017
Published online:	Feb 23, 2017
Published print:	Apr 7, 2017

Web of science:	WOS:000398859500015
Scopus:	2-s2.0-85013657157
Elibrary:	29491413
Chemical Abstracts:	2017:338387
Chemical Abstracts (print):	166:368166
OpenAlex:	W2572012302

DB	Citing
Web of science	6
Scopus	6
OpenAlex	5