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光敏聚金属氧酸电荷转移盐的合成和表征(Ⅱ)
Synthesis and Characterization of the Photosensitive Charge-transfer Salts Based on Polyoxometalate
【摘要】 在乙醇或水溶液中制备了硅钼酸同二甲胺、二乙胺、丙二胺、联吡啶、邻菲咯啉和六次甲基四胺形成的电荷转移盐.用元素分析、IR、UV对其进行了表征.结果表明,硅钼酸形成电荷转移盐后,其阴离子的Keggin结构基本不变,但其特征振动峰的位置随有机阳离子给电子能力的不同而发生不同程度的红移,所合成的部分电荷转移盐具有光致变色效应,在可见光下即可发生光激发电子转移,ESR研究表明光激发电子转移处于单电子还原阶段.
【Abstract】 The charge-transfer salts were prepared in ethnol or aqueous solution from molybdosilicic acid and diethylamine、dimethylamine、propylenediamne、dipyridine、1,10-phenanthloline and hexamethylenamine.They were characterized by elemental anaysis、IR and UV spectra.The results indicate that the structure of anion has little change after the charge-transfer salts formed,but the characteristic vibrational band have some red shift or blue shift according to the release electron ability of the organic cations.A part of them have photochromism.The charge tranfer takes place under the sunlight.The study of ESR indicates that the charge transfer was in one-electron step
- 【文献出处】 河南大学学报(自然科学版) ,JOURNAL OF HENAN UNIVERSITY (NATURAL SCIENCE) , 编辑部邮箱 ,1997年04期
- 【分类号】O611
- 【被引频次】3
- 【下载频次】56