锗钼钨混配杂多酸电荷转移盐的合成、表征及非线性光学性质研究  

Synthesis, Characterization and the Second-Order Nonlinear Optical Property of a Series Charge Transfer Salts Based on Tungstomolybdogermanate Acids and N-Methylprolinedone

作　　者：王敬平[1] 柏艳[1] 党东宾[1] 牛景扬[1] 宋立华 

机构地区：[1]河南大学化学化工学院,河南开封475001 [2]开封师专化学系,河南开封475001

出　　处：《河南大学学报（自然科学版）》2000年第1期25-28,共4页Journal of Henan University:Natural Science

基　　金：国家自然科学基金!(2960100 2)资助项目;河南省自然科学基金;河南省教委自然科学基金资助项目

摘　　要：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 。A series charge salts, [NMPH] 4GeMo 12-nWnO 40·CH 3CN, were synthesized from H 4GeMo 12-nWnO 40·mH 2O(n=0～8) and N_methylprolinedone, and characterized by elemental analysis, IR spectra and UV spectra. The results indicate that there is a strong interaction between anion and the organic cation in solid state. The charge_transfer in the compound will take place under irradiation of light and the anion will be reduced in one_electron step. The heteropoly blue were formed after the charge transfer salts were irradiated under light.The results of the secondorder nonlinear optical property indicate the SHG of the charge transfer salts increase with the number of the tungsten in the molecules.

关 键 词：电荷转移盐 非线性光学性质 锗钼钨混配杂多酸 

分 类 号：O641.4[理学—物理化学]