Dawson结构钼钒磷电荷转移配合物的合成及光谱研究

由(E)-N-丁基-4-(2-(4-二甲氨基苯基)乙烯基)吡啶溴化物与Dawson结构钼钒磷杂多酸合成了一系列组成为(C₁₉H₂₅N₂)₆H_nP₂Mo_18-nV_nO₆₂]的有机-无机电荷转移配合物。用红外光谱、紫外-可见光谱、固体漫反射可见-近红外光谱、X射线光电子能谱等研究了阴阳离子在固态和溶液中的相互作用。结果表明，该系列固体配合物中阴阳离子间存在着较强的相互作用。

Synthesis and Spectroscopy of Dawson Molybdovanadophosphoric Acid Charge-Transfer Complexes

A series of organic-inorganic charge-transfer complexes formed by (E)-N-butyl-4-(2-(4-dimethylaminophenyl)ethenyl)pyridinium bromide with Dawson molybdovanadophosphorate have been synthesized and characterized by elemental analyses, thermogravimetric analyses, UV-Vis, IR and X ray photoelectron spectroscopy. IR spectrum confirms the presence of the same type of stacks and presence of the hemicyanine cation and the molybdovanadophosphorate anion in the title complexes. The results show that 6:1 supramolecular complexes are formed between the hemicyanine cations and the heteropoly anions, and the charge transfer occurs from the hemicyanine cations to the heteropoly anions. The interaction between the hemicyanine cations and the heteropoly anions in the solid powder is stronger than in the fluid solution. The compounds reported in this paper are interesting as catalysts and nonlinear optical materials.