过渡元素三取代钨锗杂多酸盐异构体的氧化还原性质  

Redox Properties of Tungstogermanate Isomers Trisubstituted by Transition Elements

作　　者：孙英姬[1] 李顺玉[1] 王富权 陈亚光[1] 瞿伦玉[1] 

机构地区：[1]东北师范大学化学系

出　　处：《应用化学》1994年第5期83-86,共4页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金资助项目

摘　　要：用电化学方法研究了过渡元素三取代钨锗杂多酸盐Ｍ＇＿ｘＨ＿ｙ［ＧｅＷ＿９Ｍ＿３（Ｈ＿２Ｏ）＿３Ｏ＿（３７）］·ｎＨ＿２Ｏ（Ｍ＇＝Ｂｕ＿４Ｎ￣＋，Ｋ￣＋；Ｍ＝Ｃｒ￣３＋，Ｍｎ￣２＋，Ｃｏ￣２＋，Ｎｉ￣２＋，Ｃｕ￣２＋）的α－，β－异构体在水溶液中的氧化还原质，提出了它们的还原机理，讨论了取代的过渡元素和杂多阴离子的结构对氧化还原性质的影响，比较了两种异构体的氧化能力。systematic study on the redox property of tungstogermanate isomers α- and β-M_xH_y[GeW_9M_3(H_2O)_3O_(37)]·nH_2O(M'=Bu_4N￣+,K￣+;M=Cr￣3+,Mn￣2+,Co￣2+,Ni￣2+,Cu￣2+)was carried out by polarography and voltammetry in aqueous solution. A redox mechanismwas proposed and the effects of substituted elements and the structure of anions on the redoxproperty were discussed.The oxidation abilities of the α-andβ-isomers were compared.

关 键 词：钨锗杂多酸盐 氧化还原 过渡元素 

分 类 号：O641.4[理学—物理化学]