lengths representing single bonds (243.4(3) pm). The resulting distance of 430.6 pm between the manganese atoms precludes any metal—metal bonding so that the complex fragments (η5-C5Me5)Mn(CO)2H are exclusively connected to each other via the bridging silylene ligand. The hydrogen ligands attached to the manganese atoms could not be located by X-ray diffraction methods but were detected by NMR spectroscopy
处理后的不稳定的成醚络合物(η的5 -C 5我5)的Mn(CO)2(THF)(1)与甲
硅烷新型双核配合物的组合物(μ-的SiH 2)[(η 5 -C 5我5)Mn(CO)2 H] 2(2通过双氧化加成二元
氢化物前体以15%的分离产率形成)。根据单晶X射线衍射研究,该分子表现出弯曲的MnSiMn'骨架(≮Mn,Si,Mn'124.4(3)°),其中
锰-
硅键长代表单键( 243.4(3)PM)。430.6 PM的
锰原子排除了之间的距离所得的任何
金属-
金属粘合,使得复杂的片段(η 5 -C 5我5)的Mn(CO)2 H的只通过亚甲
硅基桥接
配体彼此连接。附着在
锰原子上的氢
配体不能通过X射线衍射法定位,但可以通过NMR光谱法检测到(δ(SiH)4.59,δ(MnH)-11.55; CDCl 3)。虽然热解2个产量元素氢,预期的和迄今未知的复合体(μ-Si)的[(η 5 -C 5我5)的Mn(CO)2