Ni(I) Intermediates Formed upon Activation of a Ni(II) α-Diimine Ethylene Polymerization Precatalyst with AlR3(R = Me, Et, and iBu), AlR2Cl (R = Me, Et), and MMAO: A Comparative Study Full article
| Journal |
Organometallics
ISSN: 0276-7333 , E-ISSN: 1520-6041 |
||
|---|---|---|---|
| Output data | Year: 2022, Volume: 41, Number: 8, Pages: 1015-1024 Pages count : 10 DOI: 10.1021/acs.organomet.2c00065 | ||
| Tags | Catalysts; Electron spin resonance spectroscopy; Ethylene; Nickel compounds; Nuclear magnetic resonance spectroscopy; Polymerization | ||
| Authors |
|
||
| Affiliations |
|
Funding (1)
| 1 | Russian Science Foundation | 22-23-00048 |
Abstract:
A variety of heterobinuclear Ni(I) complexes of the general formula [LNiI(μ-X1)(μ-X2)AlR2] formed upon the activation of the [LNiIIBr2] (1) ethylene polymerization catalyst (L = 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene) with AlR3 (R = Me, Et, and iBu), AlR2Cl (R = Me, Et), and MMAO were detected and characterized in situ by EPR and 1H NMR spectroscopy. The nature of the bridging groups X1 and X2 (X1, X2 = R, Br, or Cl) depends on the nature and excess of the cocatalyst used. The catalyst systems displaying various [LNiI(μ-X1)(μ-X2)AlR2] species were compared in ethylene polymerization. Possible roles of Ni(I) species in the catalytic process are discussed.
Cite:
Soshnikov I.E.
, Semikolenova N.V.
, Bryliakov K.P.
, Antonov A.A.
, Talsi E.P.
Ni(I) Intermediates Formed upon Activation of a Ni(II) α-Diimine Ethylene Polymerization Precatalyst with AlR3(R = Me, Et, and iBu), AlR2Cl (R = Me, Et), and MMAO: A Comparative Study
Organometallics. 2022. V.41. N8. P.1015-1024. DOI: 10.1021/acs.organomet.2c00065 WOS Scopus РИНЦ ANCAN OpenAlex
Ni(I) Intermediates Formed upon Activation of a Ni(II) α-Diimine Ethylene Polymerization Precatalyst with AlR3(R = Me, Et, and iBu), AlR2Cl (R = Me, Et), and MMAO: A Comparative Study
Organometallics. 2022. V.41. N8. P.1015-1024. DOI: 10.1021/acs.organomet.2c00065 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Feb 3, 2022 |
| Published online: | Apr 8, 2022 |
| Published print: | Apr 25, 2022 |
Identifiers:
| Web of science: | WOS:000795504700011 |
| Scopus: | 2-s2.0-85128388716 |
| Elibrary: | 48430855 |
| Chemical Abstracts: | 2022:916484 |
| Chemical Abstracts (print): | 178:228323 |
| OpenAlex: | W4225850878 |