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The nature of nickel species formed upon the activation of α-diimine nickel(II) pre-catalyst with alkylaluminum sesquichlorides. / Soshnikov, Igor E.; Semikolenova, Nina V.; Bryliakov, Konstantin P. et al.

In: Journal of Organometallic Chemistry, Vol. 907, 121063, 01.02.2020.

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Soshnikov IE, Semikolenova NV, Bryliakov KP, Antonov AA, Sun WH, Talsi EP. The nature of nickel species formed upon the activation of α-diimine nickel(II) pre-catalyst with alkylaluminum sesquichlorides. Journal of Organometallic Chemistry. 2020 Feb 1;907:121063. doi: 10.1016/j.jorganchem.2019.121063

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@article{3fe5e170c2cc42f98cda9e1195b3edf4,
title = "The nature of nickel species formed upon the activation of α-diimine nickel(II) pre-catalyst with alkylaluminum sesquichlorides",
abstract = "The nature of nickel(II) species, formed upon the activation of α-diiminonickel pre-catalyst LNNiIIBr2 (LN = 1,2-Bis[(2,4,6-trimethylphenyl)imino]acenaphthene) with Al2Et3Cl3 and Al2Me3Cl3, has been studied using 1H and 2H NMR spectroscopy. The paramagnetic heterobinuclear ion pairs of the type [LNNiII(μ-Cl)2AlRCl]+[A]– (where R = Et or Me, [A]- = counter anion) have been observed in the catalyst systems LNNiIIBr2/Al2Et3Cl3 and LNNiIIBr2/Al2Me3Cl3. At room temperature, both ion pairs gradually transform into EPR-active complexes of Ni(I). Their possible role in ethylene polymerization is discussed.",
keywords = "EPR, Ethylene intermediates, Nickel, NMR, Polymerization, THERMAL-STABILITY, SUBSTITUENTS, CHAIN-WALKING POLYMERIZATION, ETHYLENE POLYMERIZATION BEHAVIOR, POLYETHYLENE, ELASTOMERS, COMPLEXES SYNTHESIS, OLEFINS, BROMIDE",
author = "Soshnikov, {Igor E.} and Semikolenova, {Nina V.} and Bryliakov, {Konstantin P.} and Antonov, {Artem A.} and Sun, {Wen Hua} and Talsi, {Evgenii P.}",
note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",
year = "2020",
month = feb,
day = "1",
doi = "10.1016/j.jorganchem.2019.121063",
language = "English",
volume = "907",
journal = "Journal of Organometallic Chemistry",
issn = "0022-328X",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - The nature of nickel species formed upon the activation of α-diimine nickel(II) pre-catalyst with alkylaluminum sesquichlorides

AU - Soshnikov, Igor E.

AU - Semikolenova, Nina V.

AU - Bryliakov, Konstantin P.

AU - Antonov, Artem A.

AU - Sun, Wen Hua

AU - Talsi, Evgenii P.

N1 - Publisher Copyright: © 2019 Elsevier B.V. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/2/1

Y1 - 2020/2/1

N2 - The nature of nickel(II) species, formed upon the activation of α-diiminonickel pre-catalyst LNNiIIBr2 (LN = 1,2-Bis[(2,4,6-trimethylphenyl)imino]acenaphthene) with Al2Et3Cl3 and Al2Me3Cl3, has been studied using 1H and 2H NMR spectroscopy. The paramagnetic heterobinuclear ion pairs of the type [LNNiII(μ-Cl)2AlRCl]+[A]– (where R = Et or Me, [A]- = counter anion) have been observed in the catalyst systems LNNiIIBr2/Al2Et3Cl3 and LNNiIIBr2/Al2Me3Cl3. At room temperature, both ion pairs gradually transform into EPR-active complexes of Ni(I). Their possible role in ethylene polymerization is discussed.

AB - The nature of nickel(II) species, formed upon the activation of α-diiminonickel pre-catalyst LNNiIIBr2 (LN = 1,2-Bis[(2,4,6-trimethylphenyl)imino]acenaphthene) with Al2Et3Cl3 and Al2Me3Cl3, has been studied using 1H and 2H NMR spectroscopy. The paramagnetic heterobinuclear ion pairs of the type [LNNiII(μ-Cl)2AlRCl]+[A]– (where R = Et or Me, [A]- = counter anion) have been observed in the catalyst systems LNNiIIBr2/Al2Et3Cl3 and LNNiIIBr2/Al2Me3Cl3. At room temperature, both ion pairs gradually transform into EPR-active complexes of Ni(I). Their possible role in ethylene polymerization is discussed.

KW - EPR

KW - Ethylene intermediates

KW - Nickel

KW - NMR

KW - Polymerization

KW - THERMAL-STABILITY

KW - SUBSTITUENTS

KW - CHAIN-WALKING POLYMERIZATION

KW - ETHYLENE POLYMERIZATION BEHAVIOR

KW - POLYETHYLENE

KW - ELASTOMERS

KW - COMPLEXES SYNTHESIS

KW - OLEFINS

KW - BROMIDE

UR - http://www.scopus.com/inward/record.url?scp=85076288458&partnerID=8YFLogxK

U2 - 10.1016/j.jorganchem.2019.121063

DO - 10.1016/j.jorganchem.2019.121063

M3 - Article

AN - SCOPUS:85076288458

VL - 907

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

SN - 0022-328X

M1 - 121063

ER -

ID: 22646309