Dawson结构钼钒磷电荷转移配合物的合成及光谱研究  

Synthesis and Spectroscopy of Dawson Molybdovanadophosphoric Acid Charge-Transfer Complexes

作　　者：高丽华[1] 王科志[1] 辛秀兰[2] 李倩[2] 

机构地区：[1]北京师范大学化学系,北京100875 [2]北京工商大学化学与环境工程学院,北京100037

出　　处：《光谱学与光谱分析》2004年第11期1285-1287,共3页Spectroscopy and Spectral Analysis

基　　金：北京市自然科学基金(2002007);北京市优秀人才培养专项经费和国家自然科学基金(20371008)资助项目

摘　　要：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)6Hn[P2Mo18-nVnO62]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。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.

关 键 词：电荷转移配合物 DAWSON结构 光谱研究 固体配合物 相互作用 杂多酸 氨基 合成 乙烯基 溴化物 

分 类 号：O614[理学—无机化学] O641.4[理学—化学]