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Volumn 42, Issue 7, 2003, Pages 808-811

Why trimerization? Computational elucidation of the origin of selective trimerization of ethene catalyzed by [TaCl3(CH3)2] and an agostic-assisted hydride transfer mechanism

Author keywords

Ab initio calculations; Agostic interactions; Alkenes; Ethylene trimerization; Tantalum

Indexed keywords

CATALYSIS; COMPUTATIONAL METHODS; DIMERIZATION; HYDRIDES;

EID: 0037450185     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200390215     Document Type: Article
Times cited : (110)

References (48)
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    • note
    • 0 is the ZPE corrected energy.
  • 32
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    • and references therein
    • Møller-Plesset pertubation methods have been shown to give reliable results for systems involving second- and third-row transition metals, see: S. Niu, M. B. Hall, Chem. Rev. 2000, 100, 353, and references therein.
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    • Niu, S.1    Hall, M.B.2
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    • note
    • Since the tetramerization step is mainly disfavored by entropy, higher oligomerization could compete at very high ethene pressure.
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    • The relationship of β-agostic interaction to alkyl migration to a metal center in homogenous systems was noted earlier: G. F. Schmidt, M. Brookhart, J. Am. Chem. Soc. 1985, 107, 1443.
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    • unpublished results
    • III systems, the transformation of the metallaheptane to a metal-(1-hexene) complex is a two-step process involving β-hydride abstraction and reductive elimination: Z.-X. Yu, unpublished results.
    • Yu, Z.-X.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.