1:1 yields the complex [PtII1,2-C6H4(SiH2)(SiH2)}(depe)] (2), which has unique reactivity towards sterically unhindered alcohol to form an unusual tetra-alkoxy substituted silyl platinum(II) compound (3). Only 2 examples of bis(silyl)platinum(II) complexes prepared from this chelating hydrosilane ligand have been registered in the Cambridge Structural Database. The structure of complex (3) was unambiguously
best of our knowledge, there are only 6 examples of silyl metalcomplexes prepared from this ligand with such structural features registered in the Cambridge Structural Database, among them, only one silyl platinum(II) compound is presented. The structures of complexes 2 and 3 were unambiguously determined by multinuclear NMR spectroscopic studies and single crystal X‐ray analysis.
以1:1的比例用Pt(dmpe)(PEt 3)2(dmpe = Me 2 PCH 2 CH 2 PMe 2)处理1,2-C 6 H 4(SiH 3)(SiH 3)(1)导致生成络合物1,2-C 6 H 4(SiH 2)(SiH 2)} Pt II(dmpe)(2),它可以与带有低位阻的羟基的质子有机试剂反应形成四烷氧基取代的甲硅烷基铂(II)化合物(3)。化合物2和3是这种螯合的氢硅烷配体衍生的甲硅烷基过渡金属配合物的非常罕见的例子。据我们所知,在该结构中注册的具有这种结构特征的这种配体制备的甲硅烷基金属络合物只有6个实例,其中仅提出了一种甲硅烷基铂(II)化合物。配合物2和3的结构是通过多核NMR光谱研究和单晶X射线分析确定的。
Synthesis, structural characterization and reactivity of a bis(phosphine)(silyl) platinum(II) complex
(dcpe = Cy2PCH2CH2PCy2) in dry toluene at room temperature in the ratio of 1:1 leads to the complex 1,2-C6H4(SiH2)(SiH2)}PtII(dcpe) (2), which can react with proton organic reagent bearing hydroxy group with low steric hindrance to form a tetra-alkoxy substituted silyl platinum(II) compound (3). The structures of complexes (2) and (3) were unambiguously determined by multinuclear NMR spectroscopic studies
II(dcpe) (2), which can react with sterically unhindered alcohol to form a dimethoxy substituted silyl platinum(II) compound (3). There are only five examples of bis(silyl) platinum(II) complexes prepared from this silyl ligand with such structural features registered in the Cambridge Structural Database. The structures of 2 and 3 were unambiguously determined by single-crystal X-ray analysis and multinuclear
Reaction of 1-(dimethylsilyl)-2-silylbenzene with platinum(0) phosphine complex: Isolation and characterization of the Si3–PtIV–H complex
作者:Yong-Hua Li、Yuan Zhang、Shigeru Shimada
DOI:10.1016/j.jorganchem.2010.05.023
日期:2010.8
Reaction of two equivalents of 1,2-C6H4(SiMe2H)(SiH3) with Pt(depe)(PEt3)(2) (depe = Et2PCH2CH2PEt2) in toluene at room temperature afforded two novel isomeric 1,2-C6H4 -(SiMe2H)(SiH2)}1,2-C6H4(SiMe2) (SiH2)}(H)Pt-IV (depe) complexes 1 and 2 in 5:1 ratio among eight possible isomers. Complex 1 is one of the few examples of tris(silyl)(hydrido)platinum(IV) complexes structurally characterized by single crystal X-ray analysis. The structure of complex 1 was unambiguously determined by multinuclear NMR and single crystal X-ray analysis. (c) 2010 Elsevier B.V. All rights reserved.