双聚γ-十钨硅酸盐的结构与配位水的取代研究  

The Structure of γ-Decatungstensilicate Dimers and Replacement of Coordinated Water

作　　者：刘洪胜[1] 何丹凤[1] 慈成刚[1] 靳忠欣 

机构地区：[1]大庆师范学院化学化工学院/黑龙江省普通高等学校油田应用化学重点建设实验室,黑龙江大庆163712

出　　处：《绥化学院学报》2013年第9期149-152,共4页Journal of Suihua University

摘　　要：1970年，杂多化合物[（Yy-）M^m＋O5X^x＋O4（W or Mo）11O30]^（12-mx＋y）-被Baker和Figgis确定，同时展示了许多Y的功能化。1984年，Pope等人首先发现这些化合物可以在相转移试剂的作用下，由水相转移到非极性溶剂中，从而失去簇表面配位水，进而可被一些配体配位闭。1986年，Hill等人又首次研究了这些取代型杂多酸的催化性能。Three novel [ γ-SIW1003618- dimmers are synthesized from an aqueous acidic medium without isomerization of [γ -SIW1003618-, and structurally characterized by X-ray crystal diffraction. At the meantime, the phase transfer agents and the substitution reactions with organic ligands are researched. The experimental results show that the coordinative water molecule can be lost after the heteropoly anions are transferred from aqueous solution to benzene, and can be substituted by organic ligands. After the substitution reactions, the color of the solutions and UV-Vis have significant change with precipitation.

关 键 词：硅酸盐 结构 化合物 钨 功能化 试剂 溶剂 

分 类 号：G061[文化科学]