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EPR spectroscopic study of Ni(I) species in the catalyst system for ethylene polymerization based on α-diimine Ni(II) complex activated by MMAO. / Soshnikov, Igor E.; Semikolenova, Nina V.; Bryliakov, Konstantin P. et al.

In: Journal of Organometallic Chemistry, Vol. 880, 01.02.2019, p. 267-271.

Research output: Contribution to journal › Article › peer-review

Harvard

Soshnikov, IE, Semikolenova, NV, Bryliakov, KP, Antonov, AA, Sun, WH & Talsi, EP 2019, 'EPR spectroscopic study of Ni(I) species in the catalyst system for ethylene polymerization based on α-diimine Ni(II) complex activated by MMAO', Journal of Organometallic Chemistry, vol. 880, pp. 267-271. https://doi.org/10.1016/j.jorganchem.2018.11.021

APA

Soshnikov, I. E., Semikolenova, N. V., Bryliakov, K. P., Antonov, A. A., Sun, W. H., & Talsi, E. P. (2019). EPR spectroscopic study of Ni(I) species in the catalyst system for ethylene polymerization based on α-diimine Ni(II) complex activated by MMAO. Journal of Organometallic Chemistry, 880, 267-271. https://doi.org/10.1016/j.jorganchem.2018.11.021

Vancouver

Soshnikov IE, Semikolenova NV, Bryliakov KP, Antonov AA, Sun WH, Talsi EP. EPR spectroscopic study of Ni(I) species in the catalyst system for ethylene polymerization based on α-diimine Ni(II) complex activated by MMAO. Journal of Organometallic Chemistry. 2019 Feb 1;880:267-271. doi: 10.1016/j.jorganchem.2018.11.021

Author

Soshnikov, Igor E. ; Semikolenova, Nina V. ; Bryliakov, Konstantin P. et al. / EPR spectroscopic study of Ni(I) species in the catalyst system for ethylene polymerization based on α-diimine Ni(II) complex activated by MMAO. In: Journal of Organometallic Chemistry. 2019 ; Vol. 880. pp. 267-271.

BibTeX

@article{e32ef172054142019f43b363e6517cf3,
title = "EPR spectroscopic study of Ni(I) species in the catalyst system for ethylene polymerization based on α-diimine Ni(II) complex activated by MMAO",
abstract = "Using EPR spectroscopy, nickel(I) species formed in the catalyst system 1/MMAO for ethylene polymerization has been investigated (1 = LNiBr2, L = 1,4-bis-2,4,6-dimethylphenyl-2,3-dimethyl-1,4-diazabuta-1,3-dien). It has been shown that diamagnetic cationic complex [LNiII-tBu]+[MeMMAO]– (2) persists in system 1/MMAO at low temperatures, but rapidly decays at 25 °C to give new EPR active species 3 (major product) and 4 (minor product). Species 3 is a nickel(I) complex with the proposed structure [LNiI(S)]+[MeMMAO]– (S = solvent), whereas 4 is L(•−)AlMe2 species. Upon the addition of ethylene, complex 3 partially reversibly converts into the adduct [LNiI(C2H4)]+[MeMMAO]– (5). After ethylene consumption, species 3 restores its original concentration.",
keywords = "Active species, EPR, Ethylene polymerization, Monovalent nickel, N,N-α-diimine ligand, VINYL MONOMERS, NICKEL, N,N-alpha-diimine ligand, COPOLYMERIZATION, INSIGHTS",
author = "Soshnikov, {Igor E.} and Semikolenova, {Nina V.} and Bryliakov, {Konstantin P.} and Antonov, {Artem A.} and Sun, {Wen Hua} and Talsi, {Evgenii P.}",
year = "2019",
month = feb,
day = "1",
doi = "10.1016/j.jorganchem.2018.11.021",
language = "English",
volume = "880",
pages = "267--271",
journal = "Journal of Organometallic Chemistry",
issn = "0022-328X",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - EPR spectroscopic study of Ni(I) species in the catalyst system for ethylene polymerization based on α-diimine Ni(II) complex activated by MMAO

AU - Soshnikov, Igor E.

AU - Semikolenova, Nina V.

AU - Bryliakov, Konstantin P.

AU - Antonov, Artem A.

AU - Sun, Wen Hua

AU - Talsi, Evgenii P.

PY - 2019/2/1

Y1 - 2019/2/1

N2 - Using EPR spectroscopy, nickel(I) species formed in the catalyst system 1/MMAO for ethylene polymerization has been investigated (1 = LNiBr2, L = 1,4-bis-2,4,6-dimethylphenyl-2,3-dimethyl-1,4-diazabuta-1,3-dien). It has been shown that diamagnetic cationic complex [LNiII-tBu]+[MeMMAO]– (2) persists in system 1/MMAO at low temperatures, but rapidly decays at 25 °C to give new EPR active species 3 (major product) and 4 (minor product). Species 3 is a nickel(I) complex with the proposed structure [LNiI(S)]+[MeMMAO]– (S = solvent), whereas 4 is L(•−)AlMe2 species. Upon the addition of ethylene, complex 3 partially reversibly converts into the adduct [LNiI(C2H4)]+[MeMMAO]– (5). After ethylene consumption, species 3 restores its original concentration.

AB - Using EPR spectroscopy, nickel(I) species formed in the catalyst system 1/MMAO for ethylene polymerization has been investigated (1 = LNiBr2, L = 1,4-bis-2,4,6-dimethylphenyl-2,3-dimethyl-1,4-diazabuta-1,3-dien). It has been shown that diamagnetic cationic complex [LNiII-tBu]+[MeMMAO]– (2) persists in system 1/MMAO at low temperatures, but rapidly decays at 25 °C to give new EPR active species 3 (major product) and 4 (minor product). Species 3 is a nickel(I) complex with the proposed structure [LNiI(S)]+[MeMMAO]– (S = solvent), whereas 4 is L(•−)AlMe2 species. Upon the addition of ethylene, complex 3 partially reversibly converts into the adduct [LNiI(C2H4)]+[MeMMAO]– (5). After ethylene consumption, species 3 restores its original concentration.

KW - Active species

KW - EPR

KW - Ethylene polymerization

KW - Monovalent nickel

KW - N,N-α-diimine ligand

KW - VINYL MONOMERS

KW - NICKEL

KW - N,N-alpha-diimine ligand

KW - COPOLYMERIZATION

KW - INSIGHTS

UR - http://www.scopus.com/inward/record.url?scp=85056869050&partnerID=8YFLogxK

U2 - 10.1016/j.jorganchem.2018.11.021

DO - 10.1016/j.jorganchem.2018.11.021

M3 - Article

AN - SCOPUS:85056869050

VL - 880

SP - 267

EP - 271

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

SN - 0022-328X

ER -

ID: 17514609