1H and 2H NMR Spectroscopic Characterization of Heterobinuclear Ion Pairs Formed upon the Activation of Bis(imino)pyridine Vanadium(III) Precatalysts with AlMe3/[Ph3C]+[B(C6F5)-] and MAO Full article
| Journal |
Organometallics
ISSN: 0276-7333 , E-ISSN: 1520-6041 |
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| Output data | Year: 2014, Volume: 33, Number: 10, Pages: 2583-2587 Pages count : 5 DOI: 10.1021/om500267e | ||||
| Tags | Chemical activation; Chlorine compounds; Ethylene; Polymerization; Pyridine | ||||
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| Affiliations |
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Funding (1)
| 1 | Russian Foundation for Basic Research | 12-03-00133 |
Abstract:
Until recently, attempts to characterize vanadium(III) species formed upon the activation of vanadium(III) α-olefin polymerization precatalysts with AlMe3/[Ph3C]+[B(C6F5)]4– or MAO were unsuccessful. In this contribution, 1H and 2H NMR spectroscopy was used to study the activation of bis(imino)pyridine vanadium(III) chloride LVIIICl3 {L = [2,6-(ArN═CMe)2C5H3N], Ar = 2,6-iPr2C6H3; 2,6-Me2C6H3; 2,4,6-Me3C6H2; 3,5-F2C6H3} with AlMe3/[Ph3C]+[B(C6F5)]4– or MAO. Formation of heterobinuclear ion pairs of the type [L(R)VIII(μ-R)2AlMe2]+[A]− ([A]– = [B(C6F5)]4– or [MeMAO]−, R = Me or Cl) was observed, which are the most likely direct precursors of active sites of ethylene polymerization.
Cite:
Soshnikov I.E.
, Semikolenova N.V.
, Antonov A.A.
, Bryliakov K.P.
, Zakharov V.A.
, Talsi E.P.
1H and 2H NMR Spectroscopic Characterization of Heterobinuclear Ion Pairs Formed upon the Activation of Bis(imino)pyridine Vanadium(III) Precatalysts with AlMe3/[Ph3C]+[B(C6F5)-] and MAO
Organometallics. 2014. V.33. N10. P.2583-2587. DOI: 10.1021/om500267e WOS Scopus РИНЦ ANCAN OpenAlex
1H and 2H NMR Spectroscopic Characterization of Heterobinuclear Ion Pairs Formed upon the Activation of Bis(imino)pyridine Vanadium(III) Precatalysts with AlMe3/[Ph3C]+[B(C6F5)-] and MAO
Organometallics. 2014. V.33. N10. P.2583-2587. DOI: 10.1021/om500267e WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Mar 13, 2014 |
| Published online: | May 8, 2014 |
| Published print: | May 27, 2014 |
Identifiers:
| Web of science: | WOS:000336642600022 |
| Scopus: | 2-s2.0-84901411148 |
| Elibrary: | 22063912 |
| Chemical Abstracts: | 2014:760796 |
| Chemical Abstracts (print): | 160:691363 |
| OpenAlex: | W2333089397 |