Hydrolysis of Me3SiCH2 groups on a double-chelating bis(ferrocenediyl) diphosphine coordinating to a Pt(0) center

被引：1

作者：

Abe, Kanako ^{[1
]}

Kubo, Kazuyuki ^{[1
]}

Kume, Shoko ^{[1
]}

Mizuta, Tsutomu ^{[1
]}

机构：

[1] Hiroshima Univ, Grad Sch Sci, Dept Chem, Kagamiyama 1-3-1, Higashihiroshima 7398526, Japan

来源：

POLYHEDRON | 2016年 / 110卷

关键词：

Double-chelating diphosphine; Pt(0) complex; Hydrolysis of Me3SiCH2 group; 1.1]Ferrocenophane; Trimethylsilylmethylphosphine; EFFECTIVE CORE POTENTIALS; GENERALIZED GRADIENT APPROXIMATION; MOLECULAR CALCULATIONS; STEREOSELECTIVE-SYNTHESIS; COMPLEXES; BEHAVIOR; EXCHANGE; LIGANDS; PROTONATION; PALLADIUM;

D O I：

10.1016/j.poly.2016.02.027

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The double-chelating diphosphine ligand PCH2SiMe3-bridged [1.1]ferrocenophane (1), in which two phosphorus donor atoms are doubly linked with two ferrocene groups and with a Me3SiCH2 group on each phosphorus center, was reacted with [Pt(PPh3)(3)] to form the tricoordinated Pt(0) complex [Pt(1) (PPh3)]. Refluxing of this complex with another equivalent of 1 in THF inadvertently containing traces of water was found to successively hydrolyze the four Me3SiCH2 groups of [Pt(1)(2)] to eventually form [Pt(2)(2)], in which all the initial Me3Si groups of [Pt(1)(2)] were replaced with hydrogens. The molecular structure of [Pt(2)(2)], as determined by X-ray analysis, shows stereochemical congestion between the two ligands. Since hydrolysis in refluxing THF did not proceed at all for both the free ligand 1 and the Pt(II) complex [PtCl2(1)], the stereochemical congestion of the Pt(0) complexes having two double-chelating diphosphine ligands is probably responsible for the observed hydrolysis. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：114 / 118

页数：5

共 19 条

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