基于[MnMo_9O_^(32)]^(6-)为基本单元的钼酸盐的合成及表征

Synthesis and Properties Characterization of Molybdate Based on[MnMo_9O_^(32)]^(6-)Cation for Basic Building Unit

采用传统的水溶液合成法,以[MnMo_9O_^(32)]^(6-)手性离子的钼酸铵盐为基本原料,与不同的过渡金属阳离子及咪唑,吡啶以及苯并咪唑等有机配体反应,合成了具有两种新型的含有[MnMo_9O_^(32)]^(6-)手性离子的钼酸盐晶体。通过红外光谱、单晶体X-射线衍射分析及圆二色谱等手段对这些化合物的晶体结构和性质进行了表征。结果表明,[MnMo_9O_^(32)]^(6-)杂多阴离子pH的稳定范围在4~5,在原料(NH_4)_6[MnMo_9O_(32)]的制备过程中,双氧水既是最理想的环保氧化剂,同时在调节pH方面也起到了很好的作用。

A series of derivatives containing chiral [MnMo_9O_^（32）]^（6-）were synthesized by traditional aqueous solution in one- pot reaction of（ NH4）6Mn Mo9O32 with transition metal ions（ or with transition metal ions and organic ligands）.These complexes were partly determined by single- crystal X- ray diffraction and investigated by IR and CD. The results showed that [MnMo_9O_^（32）]^（6-）heteropoly anions was stable in the p H range of 4 ~ 5,in the starting material（ NH_4）_6[MnMo_9O_（32）],the preparation of the oxidizing agent hydrogen peroxide was not only the best environmental protection,but also played a very good role in adjusting the p H.