钨磷杂多阴离子〔(P_4W_(30)Cu_4(H_2O)_2O_(112))^(16-)〕合成方法的改进及其配位水的取代反应  

An Improved Experimental Method of Heteropolytungstophosphate Anion P 4W 30 Cu 4(H 2O) 2 O 112 16- and Substitution Reaction of Coordinated Water Molecules in IT

作　　者：毕丽华[1,2] 韩正波[1,2] 王恩波 黄如丹[1,2] 

机构地区：[1]吉林工业大学理学院 [2]东北师范大学化学系

出　　处：《吉林工业大学学报》1999年第1期40-43,共4页

基　　金：国家自然科学基金

摘　　要：介绍了标题杂多阴离子改进的实验方法及其配位水的取代反应。通过控制溶液ｐＨ值的方法得到的标题杂多阴离子产品转化率增加，纯度高。配体取代配位水的反应在水溶液中不能发生，而在非极性有机溶剂中配位水分子易脱去形成配位不饱和态〔１〕，此反应却容易发生。The paper reports an improved experimental method of heteropolyanion and substitution reaction of coordinated water molecules.When pH of the solution is controlled,title heteropolyanion is formed and the yield is high and the product gets purer.The substitution reactions of liquids not feasible in aqueous solution take place easily in nonpolar solurent,which is related to that of the dissociation of the water molecules coordinated to the “surface” substituted atoms of the polyanion occurs easily,which leads to coordinatively unsaturated sites on the surface of the heteropolyanion.

关 键 词：钨磷杂多阴离子 配位水 取代反应 合成 晶体结构 

分 类 号：O641.4[理学—物理化学]