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用H4 GeMo12_nWnO4 0 ·mH2 O(n =0～ 8)和N_甲基吡咯烷酮制备了一系列电荷转移盐 ,经元素分析确定其分子组成为 [NMPH]4 GeMo12_nWnO4 0 ·CH3 CN .红外光谱 ,紫外光谱测定结果表明在该系列固体盐中 ,阴离子和有机阳离子之间存在强的相互作用 ;光照下化合发生分子内电荷转移 ,阴离子发生单电子还原反应 ,光照变色后有杂多蓝生成 ;二阶非线性光学性质研究表明 ,随着化合物分子内钨取代数的增多 ,化合物倍频效应增强
A series of charge-transfer salts were prepared from H4 GeMo12_nWnO4O · mH2O (n = 0 ~ 8) and N-methylpyrrolidone. The molecular structures were confirmed to be [NMPH] 4GeMo12_nWnO4O · CH3CN by elemental analysis. IR, The results of spectrometry show that there is a strong interaction between the anion and the organic cation in this series of solid salts; intramolecular charge transfer occurs in the compound under light irradiation, single electron reduction reaction occurs in the anion, heterochromatic blue is formed after light discoloration; Studies on nonlinear optical properties show that as the number of tungsten substitutions in the compound increases, the multiplier effect of the compound is enhanced