Synthesis, characterization, and X-ray structural analysis of diplatinum complexes containing bridging μ-SiHAr ligands, {(PhnMe3-nP)2Pt[μ-SiHAr]}2 [n=0-2; Ar=2-isopropyl-6-methyl(phenyl)

被引：36
作者：
Braddock-Wilking, J [1 ]
Levchinsky, Y [1 ]
Rath, NP [1 ]
机构：
[1] Univ Missouri, Dept Chem, St Louis, MO 63121 USA
来源：
ORGANOMETALLICS | 2001年 / 20卷 / 03期
关键词：
D O I：
10.1021/om000638j
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Reaction of(IMP)SiH3 with (PhnMe3-nP)(2)PtMe2 at 50 degreesC provided the dinuclear complexes trans-[(PhnMe3-nP)(2)Pt(mu -SiHAr)](2) [Ar = 2-isopropyl-6-methylphenyl (IMP)]. These complexes were characterized by multinuclear NMR and IR spectroscopy and X-ray crystallography. The Si-29 NMR chemical shift for {PhMe2P)(2)Pt[mu -SiH(IMP]}(2) appears at unusually high field (-134 ppm) for complexes containing bridging silylene moieties. The X-ray structures of these complexes reveal acute Si-Pt-Si and obtuse Pt-Si-Pt angles. In solution, {(Ph2MeP)(2)Pt[mu -SiH(IMP)]}(2) undergoes dissociation of PMePh2 down to - 90 degreesC.
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页码：474 / 480
页数：7
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