The platinum—carbon bond strength in Pt(PPh3)2(Cl)(CPhCHPh)期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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The platinum—carbon bond strength in Pt(PPh3)2(Cl)(CPhCHPh)

Authors:	A Evans CT Mortimer RJ Puddephatt

Institution:	Department of Chemistry, University of Keele, Keele, L69 3BX Great Britain;Department of Chemistry, University of Liverpool, Liverpool, L69 3BX Great Britain

Abstract:	The enthalpies of the reactions 1 and 2 have been determined as ΔH = Pt(PPh₃)₂(CPhCPh)_cryst. + HCl_g → Pt(PPh₃)₂(Cl)(CPhCHPh)_cryst. (1) Pt(PPh₃)₂(CPhCPh)_cryst. + 2HCl_g → cis-Pt(PPh₃)₂Cl₂_cryst. + trans-CHPhCHPh_g (2) ?90.2 ± 6 and ΔH = ?139.0 ± 16 kJ mol^?1, respectively; dissociation energies of bonds involving platinum are expressed by the relationship: 41 kJ mol^?1 + D(Pt-tolane) = 2D(PtCPhCHPh) = {D₁(PtCl) + D₂(PtCl)} ?350 kJ mol^?1

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