摘要
本文报导了合成出二钼取代钨的11系列杂多配合物。元素分析表明其组成与化学式K_8〔SiW_9Mo_2O_(39)〕·nH_2O吻合较好。化合物的红外光谱具有Keggin结构杂多化合物的特征谱带;主要谱带的振动频率与SiW_9相比发生紫移;紫外光谱出现两个明显的吸收峰;x射线粉末衍射图与SiW_(11),BW_(11)极为相似。
In this paper for the first time the synthesis and the characterization of a new heteropoly complex K8[SiW9Mo2O39]·nH2O are presented. Elemental analysis shows that composition of the complex agrees with formulae K8[SiW9Mo2O38]·nH2O.In the IR spectrum of the complex Keggin structure is found as compared with SiW9,the absorption frequencies of main bands all shift toward to higher wavenumber, which was observed. There are two apparent absorption peaks in the UV spectrum of the complex. X-ray powder diffraction pattern of the sample is very analogous to which of BW11 and SiW11.
关键词
杂多配合物
合成
钨钼酸钾
硅
表征
unsaturated heteropoly complex, heteropoly-tungstomolybdosi- licatesynthesis
