New Ni(II)-Ni(II) Dinuclear Complex, a Resting State of the (α-diimine)NiBr2/AlMe3 Catalyst System for Ethylene Polymerization Full article
| Journal |
Catalysts
ISSN: 2073-4344 |
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| Output data | Year: 2023, Volume: 13, Number: 2, Article number : 333, Pages count : 13 DOI: 10.3390/catal13020333 | ||||
| Tags | α-diimine; nickel; trimethylaluminum; NMR; ethylene polymerization; active species; DFT calculations | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 22-23-00048 |
Abstract:
A novel room-temperature stable diamagnetic nickel complex 2 was detected upon activation of Brookhart-type ethylene polymerization pre-catalyst LNiBr2 (1, L = 1,4-bis-2,4,6-trimethylphenyl-2,3-dimethyl-1,4-diazabuta-1,3-diene) with AlMe3. Using in situ 1H, 2H, and 13C NMR spectroscopy, as well as DFT calculations, this species has been identified as an antiferromagnetically coupled homodinuclear complex [LNiII(μ-Me)(μ-CH2)NiIIL]+Br−. Its behavior in the reaction solution is characteristic of the resting state of nickel catalyzed ethylene polymerization.
Cite:
Soshnikov I.E.
, Semikolenova N.V.
, Bryliakova A.A.
, Antonov A.A.
, Bryliakov K.P.
, Talsi E.P.
New Ni(II)-Ni(II) Dinuclear Complex, a Resting State of the (α-diimine)NiBr2/AlMe3 Catalyst System for Ethylene Polymerization
Catalysts. 2023. V.13. N2. 333 :1-13. DOI: 10.3390/catal13020333 WOS Scopus РИНЦ AN OpenAlex
New Ni(II)-Ni(II) Dinuclear Complex, a Resting State of the (α-diimine)NiBr2/AlMe3 Catalyst System for Ethylene Polymerization
Catalysts. 2023. V.13. N2. 333 :1-13. DOI: 10.3390/catal13020333 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Dec 19, 2022 |
| Accepted: | Jan 31, 2023 |
| Published print: | Feb 2, 2023 |
| Published online: | Feb 2, 2023 |
Identifiers:
| Web of science: | WOS:000945110400001 |
| Scopus: | 2-s2.0-85148912917 |
| Elibrary: | 54787559 |
| Chemical Abstracts: | 2023:433269 |
| OpenAlex: | W4319000890 |