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Volumn 27, Issue 10, 2008, Pages 2159-2162

Mechanistic insight into the polymerization of butadiene by "ligand-free" polybutadienyl-nickel(II) complexes: Computational assignment of the true structure of the resting state

Author keywords

[No Author keywords available]

Indexed keywords

BUTADIENE; CHEMICAL REACTIONS; LIGANDS; NICKEL; NICKEL ALLOYS; NICKEL COMPOUNDS; POLYMERIZATION; POLYMERS; SULFUR COMPOUNDS;

EID: 44649123603     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om701214u     Document Type: Article
Times cited : (10)

References (38)
  • 18
    • 44649178228 scopus 로고    scopus 로고
    • The [Ni(C12H29)]X complex with the weakly coordinating B(C6H3(CF3)2) 4 counterion is a highly active initiator (N1 ≈ 12 000 mol of C4H6 (mol of Ni)-1 h-1 at 25 °C in benzene) that yields a PBD of predominant cis-1,4-structure (93% cis-1,4, 4% trans-1,4, and 3% 1,2-enchainment).10c
    • 10c
  • 19
    • 44649191113 scopus 로고    scopus 로고
    • The curved lines in syn-B and anti-B indicate some uncertainty regarding which of the double bonds of the polybutadienyl chain actually coordinate at the Ni center. The reversible arrows connecting syn-lanti-B and syn-lanti-C describe the existing equilibrium, without elaborating further on its kinetics.
    • The curved lines in syn-B and anti-B indicate some uncertainty regarding which of the double bonds of the polybutadienyl chain actually coordinate at the Ni center. The reversible arrows connecting syn-lanti-B and syn-lanti-C describe the existing equilibrium, without elaborating further on its kinetics.
  • 26
    • 44649169662 scopus 로고    scopus 로고
    • Calculations employed TURBOMOLE V5.8 and used the TPSS functional together with flexible basis sets of valence triple-ζ quality. See the Supporting Information for full details.
    • Calculations employed TURBOMOLE V5.8 and used the TPSS functional together with flexible basis sets of valence triple-ζ quality. See the Supporting Information for full details.
  • 27
    • 44649152256 scopus 로고    scopus 로고
    • See the Supporting Information for further details
    • See the Supporting Information for further details.
  • 29
    • 44649175676 scopus 로고    scopus 로고
    • This transforms into a relative likelihood of ∼0.1:100 (298 K) for 1,2- and cis-1,4-insertion events
    • This transforms into a relative likelihood of ∼0.1:100 (298 K) for 1,2- and cis-1,4-insertion events.
  • 35
    • 44649182106 scopus 로고    scopus 로고
    • Frisch, M. J.; et al. Gaussian 03, Rev. B.05; Gaussian, Inc., Pittsburgh, PA, 2003.
    • Frisch, M. J.; et al. Gaussian 03, Rev. B.05; Gaussian, Inc., Pittsburgh, PA, 2003.
  • 37
    • 44649179240 scopus 로고    scopus 로고
    • This transforms into a relative acceleration by a factor of ∼10
    • This transforms into a relative acceleration by a factor of ∼10.
  • 38
    • 44649155654 scopus 로고    scopus 로고
    • -1 by taking the reaction conditions as reported in ref 10g into account
    • -1 by taking the reaction conditions as reported in ref 10g into account


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.