Standard

Vanadium olefin polymerization catalysts : NMR spectroscopic characterization of V(III) intermediates. / Soshnikov, Igor E.; Semikolenova, Nina V.; Bryliakov, Konstantin P. et al.

In: Journal of Organometallic Chemistry, Vol. 867, 15.07.2018, p. 4-13.

Research output: Contribution to journal › Review article › peer-review

Harvard

Soshnikov, IE, Semikolenova, NV, Bryliakov, KP, Zakharov, VA & Talsi, EP 2018, 'Vanadium olefin polymerization catalysts: NMR spectroscopic characterization of V(III) intermediates', Journal of Organometallic Chemistry, vol. 867, pp. 4-13. https://doi.org/10.1016/j.jorganchem.2017.08.020

APA

Soshnikov, I. E., Semikolenova, N. V., Bryliakov, K. P., Zakharov, V. A., & Talsi, E. P. (2018). Vanadium olefin polymerization catalysts: NMR spectroscopic characterization of V(III) intermediates. Journal of Organometallic Chemistry, 867, 4-13. https://doi.org/10.1016/j.jorganchem.2017.08.020

Vancouver

Soshnikov IE, Semikolenova NV, Bryliakov KP, Zakharov VA, Talsi EP. Vanadium olefin polymerization catalysts: NMR spectroscopic characterization of V(III) intermediates. Journal of Organometallic Chemistry. 2018 Jul 15;867:4-13. doi: 10.1016/j.jorganchem.2017.08.020

Author

Soshnikov, Igor E. ; Semikolenova, Nina V. ; Bryliakov, Konstantin P. et al. / Vanadium olefin polymerization catalysts : NMR spectroscopic characterization of V(III) intermediates. In: Journal of Organometallic Chemistry. 2018 ; Vol. 867. pp. 4-13.

BibTeX

@article{c6b698f0c92d4723acd3d0985addd6f1,
title = "Vanadium olefin polymerization catalysts: NMR spectroscopic characterization of V(III) intermediates",
abstract = "Vanadium(III) species formed upon reacting α-diimine (1) and bis(imino)pyridine (5) vananadium(III) pre-catalysts with MAO, AlMe2Cl, AlMe2Cl/[Ph3C][B(C6F5)4], and AlMe3/[Ph3C][B(C6F5)4] have been characterized in detail by 1H, 2H, and 19F NMR spectroscopy; the VIII-CH3 moiety has been observed by 1H and 2H NMR spectroscopy. For complex 1, zwitterion-like species [L'VIIIR2 +···MeMAO-] and ion pairs [L'VIIIR2(THF)2]+[A]- (L' = 1,4-bis-3,5-dimethylphenyl-2,3-dimethyl-1,4-diazabuta-1,3-diene; [A]- = [MeMAO]- or [B(C6F5)4]-) have been identified. The outer-sphere ion pairs of the type [L(Cl)VIII(μ-Cl)2AlMe2]+[A]-, [L(Me)VIII(μ-Cl)2AlMe2]+[A]-, [LVIIICl2(THF)]+[A]- and [LVIII(Cl)Me(THF)]+[A]- (L = 2,6-bis[1-(2,6-dimethylphenylimino)ethyl]pyridine; [A]- = [AlMe3Cl]- or [B(C6F5)4]-) have been found in the systems based on the complex 5. The nature of the vanadium species active in ethylene polymerization and the catalyst deactivation pathways are discussed.",
keywords = "Active species, Bis(imino)pyridine, Ethylene polymerization, NMR, Vanadium, α-diimine, bis(imino)pyridine, ACTIVATION, ALKYL, bis(imino) pyridine, EPR, STATE, IRON(II), ETHYLENE POLYMERIZATION, H-1, COMPLEXES SYNTHESIS, LIGAND, alpha-diimine",
author = "Soshnikov, {Igor E.} and Semikolenova, {Nina V.} and Bryliakov, {Konstantin P.} and Zakharov, {Vladimir A.} and Talsi, {Evgenii P.}",
year = "2018",
month = jul,
day = "15",
doi = "10.1016/j.jorganchem.2017.08.020",
language = "English",
volume = "867",
pages = "4--13",
journal = "Journal of Organometallic Chemistry",
issn = "0022-328X",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Vanadium olefin polymerization catalysts

T2 - NMR spectroscopic characterization of V(III) intermediates

AU - Soshnikov, Igor E.

AU - Semikolenova, Nina V.

AU - Bryliakov, Konstantin P.

AU - Zakharov, Vladimir A.

AU - Talsi, Evgenii P.

PY - 2018/7/15

Y1 - 2018/7/15

N2 - Vanadium(III) species formed upon reacting α-diimine (1) and bis(imino)pyridine (5) vananadium(III) pre-catalysts with MAO, AlMe2Cl, AlMe2Cl/[Ph3C][B(C6F5)4], and AlMe3/[Ph3C][B(C6F5)4] have been characterized in detail by 1H, 2H, and 19F NMR spectroscopy; the VIII-CH3 moiety has been observed by 1H and 2H NMR spectroscopy. For complex 1, zwitterion-like species [L'VIIIR2 +···MeMAO-] and ion pairs [L'VIIIR2(THF)2]+[A]- (L' = 1,4-bis-3,5-dimethylphenyl-2,3-dimethyl-1,4-diazabuta-1,3-diene; [A]- = [MeMAO]- or [B(C6F5)4]-) have been identified. The outer-sphere ion pairs of the type [L(Cl)VIII(μ-Cl)2AlMe2]+[A]-, [L(Me)VIII(μ-Cl)2AlMe2]+[A]-, [LVIIICl2(THF)]+[A]- and [LVIII(Cl)Me(THF)]+[A]- (L = 2,6-bis[1-(2,6-dimethylphenylimino)ethyl]pyridine; [A]- = [AlMe3Cl]- or [B(C6F5)4]-) have been found in the systems based on the complex 5. The nature of the vanadium species active in ethylene polymerization and the catalyst deactivation pathways are discussed.

AB - Vanadium(III) species formed upon reacting α-diimine (1) and bis(imino)pyridine (5) vananadium(III) pre-catalysts with MAO, AlMe2Cl, AlMe2Cl/[Ph3C][B(C6F5)4], and AlMe3/[Ph3C][B(C6F5)4] have been characterized in detail by 1H, 2H, and 19F NMR spectroscopy; the VIII-CH3 moiety has been observed by 1H and 2H NMR spectroscopy. For complex 1, zwitterion-like species [L'VIIIR2 +···MeMAO-] and ion pairs [L'VIIIR2(THF)2]+[A]- (L' = 1,4-bis-3,5-dimethylphenyl-2,3-dimethyl-1,4-diazabuta-1,3-diene; [A]- = [MeMAO]- or [B(C6F5)4]-) have been identified. The outer-sphere ion pairs of the type [L(Cl)VIII(μ-Cl)2AlMe2]+[A]-, [L(Me)VIII(μ-Cl)2AlMe2]+[A]-, [LVIIICl2(THF)]+[A]- and [LVIII(Cl)Me(THF)]+[A]- (L = 2,6-bis[1-(2,6-dimethylphenylimino)ethyl]pyridine; [A]- = [AlMe3Cl]- or [B(C6F5)4]-) have been found in the systems based on the complex 5. The nature of the vanadium species active in ethylene polymerization and the catalyst deactivation pathways are discussed.

KW - Active species

KW - Bis(imino)pyridine

KW - Ethylene polymerization

KW - NMR

KW - Vanadium

KW - α-diimine

KW - bis(imino)pyridine

KW - ACTIVATION

KW - ALKYL

KW - bis(imino) pyridine

KW - EPR

KW - STATE

KW - IRON(II)

KW - ETHYLENE POLYMERIZATION

KW - H-1

KW - COMPLEXES SYNTHESIS

KW - LIGAND

KW - alpha-diimine

UR - http://www.scopus.com/inward/record.url?scp=85029667374&partnerID=8YFLogxK

U2 - 10.1016/j.jorganchem.2017.08.020

DO - 10.1016/j.jorganchem.2017.08.020

M3 - Review article

AN - SCOPUS:85029667374

VL - 867

SP - 4

EP - 13

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

SN - 0022-328X

ER -

ID: 10068816