含季鏻阳离子的钼多酸化合物的合成、结构及光催化性能研究  

Synthesis,Structure and Photocatalytic Property of [Mo_6O_(19)]^(2-) Polyoxometalate with Phosphonium Cation

作　　者：胡洋洋[1] 曾祥华[1] 宫春华 忻粒 张佳琪[1] 张俊勇[1] 谢景力[1] 

机构地区：[1]嘉兴学院生物与化学工程学院,嘉兴314001

出　　处：《化学通报》2017年第7期651-655,共5页Chemistry

基　　金：国家自然科学基金项目(21371078;21401077);浙江省自然科学基金项目(LY17B030011);嘉兴市科技局项目(2015AY11014)资助

摘　　要：由季鏻盐与钼酸铵在常温条件下合成了含季鏻阳离子的(n-C_5H_(10)Ph_3P)_2[Mo_6O_(19)]多酸化合物,并通过X-射线单晶衍射、红外光谱、紫外光谱、热重分析和电化学对其进行了表征。季鏻配体上的氢原子通过与多酸阴离子端基氧原子形成氢键而构筑了一维链状结构,并且相邻季鏻配体上的苯环通过π-π作用形成三维层状结构。此外,对该多酸化合物的光催化降解亚甲基蓝的性能进行了研究。A polyoxometalate compound [n-C_5H_（10）Ph_3P]_2[Mo_6O_（19）] was synthesized by the reaction of n-C_5H_10Ph_3PI and （NH_4）_6Mo_7O_24·7H_2O at ambient condition. This compound was characterized by single crystal X-ray diffraction, UV-Vis spectrum, IR spectrum, TGA and electrochemistry analysis. The polyoxometalate compound contains two n-C_5H_10Ph_3P＋ cations. There were hydrogen bonding interactions between terminal oxygen atoms of [Mo_6O_（19）] 2- anions and phosphonium cations, and consequently one dimensional chain was formed. Three dimensional structures were constructed by the π-π stacking between the phenyl rings of the cationic phosphonium. Additionally, its photocatalytie property for the degradation of methylene blue （MB） was also investigated.

关 键 词：多酸化合物 季鏻阳离子 晶体结构 光催化 亚甲基蓝 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学]