Mo_4(μ_3-O)_2O_4Cl_2(O_2CC_6H_5)_6和Mo_4(μ_3-O)_2O_4Cl_2(O_2CC_6H_4CH_3)_6·2C_6H_5Cl簇合物中弱M—M键的研究

The Study of Weak Metal-Metal Bond in Mo_4(μ_3-O)_2O_4Cl_2(O_2CC_6H_5)_6 adn Mo_4(μ_3-O)_2O_4Cl_2(O_2CC_6H_4CH_3)_6·2C_6H_5ClClusters

测定了Mo_4(μ_(3-)O)_2O_4Cl_2(O_2CC_6H_5)_6和Mo_4(μ_(3-)O)_2O_4Cl_2(O_2CC_6H_4CH_3)_6·2C_6H_5Cl四钼簇合物在N,N-二甲基甲酰胺溶液中的循环伏安特性、电子吸收光谱、固体粉末样品的表面光电压谱和光声光谱。讨论Mo_2(V)结构单元中弱M—M键的特性,认定了Mo—Mo键前线区域轨道的对称标号。

The UV spectra and cyclic voltammetry property of the two clusters, Mo4(μs-O)2O4Cl2(O2CC6H5)6 and Mo4(μ3-O)2O4Cl2(O2CC6H4CH3)6 · 2C6H5Cl, desolved in N, N-dimetylformamide and the SPY (Surface Photovoltage) spectra, Photoacoustic spectra of this two solid state samples are measured. We discuss the properties of the weak metal-metal bond of the Mo2(V) structure unit and assign symmetry properties of Mo-Mo frontier orbits.