H_3PMo_xW_(12-x)O_(40)·nH_2O和N-甲基吡咯烷酮电荷转移盐的合成,表征和非线性光学性质  

Synthesis, Characterization and Nonlinear Property of Charge-Transfer Salts from H_3PMo_xW_(12-x)O_ (40) ·nH_2O and N-Methylpyrrolidone

作　　者：牛景扬[1] 王敬平[1] 柏艳[1] 党东宾[1] 于丽[1] 

机构地区：[1]河南大学化学化工学院,开封475001

出　　处：《应用化学》2000年第6期589-592,共4页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金!(2 96 0 10 0 2 );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：由 H3PMox W12 -x O4 0 · n H2 O( x=0 ,1,3,9,11,12 )和 N -甲基吡咯烷酮合成了一系列分子组成为 [NMPH]3PMox W12 -x O4 0 · CH3CN的电荷转移化合物 ,用元素分析、红外光谱进行了表征 .结果表明 ,该系列化合物固体中阴离子和阳离子间存在强的相互作用 ;化合物在光照下发生分子内电荷转移 ,导致阳离子氧化和阴离子还原 ;ESR结果表明 ,阴离子还原处于单电子阶段 ;非线性光学性质研究表明 ,随化合物分子内钨取代数增多 ,化合物倍频效应增强 ;三阶非线性系数增大 .Six charge-transfer salts, [NMPH] 3PMo xW 12-xO 40· CH 3CN(x=0,1,3,9,11,12) were synthesized from H 3PMo xW 12-xO 40·nH 2O and N-methylpyrrolidone and characterized by elemental analysis and IR spectra. The results suggest that there is a strong interaction between anions and organic cations in solid compounds. The charge-transfer in the com- pounds will take place under irradiation of light and result in oxidation of organic molecules and reduction of anions. The ESR results indicate the one electron step reduction of anions. The second-order and third-order nonlinear optical property measurements indicate that the SHG and the susceptibilities of the charge-transfer salts increase with the increase of tungsten content in molecule.

关 键 词：杂多酸 N-甲基吡咯烷酮 非线性光学性质 电荷转移盐 合成 NMP 

分 类 号：O621.22[理学—有机化学] O437[理学—化学]