硅钨酸/亚甲蓝超分子配合物的合成与性质

Preparation and Photochromism of Keggin Type Heteropoly/Methylene Blue Supermolealar Compound

以硅钨杂多酸和亚甲蓝为原料 ,首次合成了未见文献报道的硅钨酸 /亚甲蓝超分子配合物 ,它们的组成是( MB)· H4Si W1 2 O40 · 5 H2 O采用 IR、UV- Vis、TG- DTA等方法对合成配合物进行了表征。结果表明 ,配合物中杂多阴离子仍保持 Keggin结构特征 ,具有良好的可逆光致变色性质 。

A new photochromic compound has been synthesized based on heteropoly acid and methylene blue and charactrized by elemental analysis, IR, and UV-Vis spectroscopy. The results show that heteropolyanoins with a Keggin structure was kept unchanged.Photochromism studies show that the electron transfer takes place from the organic molecules to the heteropolyanions.