Reactions of [Pt(PEt3)3] (1) with the silanes HSiPh3, HSiPh2Me and HSi(OEt)3 led to the products of oxidative addition, cis-[Pt(H)(SiPh3)(PEt3)2] (2), cis-[Pt(H)(SiPh2Me)(PEt3)2] (3), cis-[Pt(H)Si(OEt)3}(PEt3)2] (cis-4) and trans-[Pt(H)Si(OEt)3}(PEt3)2] (trans-4). The complexes cis-4 and trans-4 can also be generated by hydrogenolysis of (EtO)3SiSi(OEt)3 in the presence of 1. Furthermore, the silyl compounds cis-4 and trans-4 react with B(C6F5)3 and CH3CN by hydride abstraction to give the cationic silyl complex trans-[PtSi(OEt)3}(NCCH3)(PEt3)2][HB(C6F5)3] (8). In addition, the reactivity of the complexes cis-4, trans-4 and 8 towards alkenes and CO was studied using NMR experiments.
Pt(PEt3)3] (1) 与
硅烷 HSiPh3、HSiPh2Me 和 HSi(OEt)3 反应生成
氧化加成产物、顺式-[Pt(H)(SiPh3)(PEt3)2] (2)、顺式-[Pt(H)(SiPh2Me)(PEt3)2] (3)、顺式-[Pt(H)Si(OEt)3}(PEt3)2] (cis-4) 和反式-[Pt(H)Si(OEt)3}(PEt3)2] (trans-4) 复合物。顺式-4 和反式-4 复合物也可以在 1 的存在下通过
氢解 (EtO)3SiSi(OEt)3 生成。此外,顺式-4 和反式-4
硅烷基化合物通过
氢化物萃取与 B(
C6F5)3 和 CH3CN 反应生成阳离子
硅烷基复合物反式-[PtSi(OEt)3}(NCCH3)(PEt3)2][HB( )3] (8)。此外,还利用核磁共振实验研究了顺式-4、反式-4 和 8 复合物对
烯和 CO 的反应性。