different geometries depending upon R. The X-ray crystal structure analyses of [M(SC6H2Pri3-2,4,6)2(CO)2(PMe2Ph)2]3(M = Mo or W) show them to have essentially trigonal prismatic structures with trigonal faces made from C(O), P and S atoms. The structures and fluxional properties of the carbonyl derivatives and of compounds 2 in solution have been studied by NMR spectroscopy. On treatment with 2H2 at 1
配合物[
MH(SC 6 H 2 R 3 -2,4,6 )3(PMe 2 Ph)2 ] 1(M = Mo或W,R = Me或Pr i)与中性
配体L的反应导致膦取代给出系列[
MH(SC 6 H 2 R 3 -2,4,6 )3(PMe 2 Ph)L] 2 [L = R'C 5 H 4 N,P(OR'')3或MeCN; R′= H,2-,3-或4-Me,R” = Me或Et]。还制备了
氘代类似物。与CO反应导致
氢化物和
硫醇盐置换,得到化合物[M(SC 6ħ 2 - [R 3 -2,4,6-)2(CO)2(PME 2 PH)2 ],其具有根据的[M(SC R.所述的X射线晶体结构分析不同的几何形状6 ħ 2
镨我3 - 2,4,6)2(CO)2(PMe 2 Ph)2 ] 3(M = Mo或W)显示它们具有基本上为三角形的棱柱结构,并具有由C(O),P和S原子构成的三角形面。通过NMR光谱研究了羰基衍生