4A和5A族金属元素取代的钨锰杂多配合物的制备与结构表征  

Synthesis and Characterization of Tungsten Manganese Heteropoly Compounds with 4A and 5A Metal Elements Substituted

作　　者：王春晓[1] 梁桂英[1] 周百斌[1] 

机构地区：[1]哈尔滨师范大学化学系,黑龙江哈尔滨150080

出　　处：《化学与粘合》2006年第1期5-8,共4页Chemistry and Adhesion

基　　金：国家自然科学基金(20371014);黑龙江省自然科学基金(ZTB2005-33);黑龙江省教育厅科研项目(10531070);哈尔滨市学科后备带头人基金(2002AFXXJ050)的资助

摘　　要：通过直接法制备了4A和5A族金属元素取代的以锰为中心原子的杂多配合物,经ICP、TG曲线确定其化学式为K13,14[M(MnW11O39)2].XH2O(M=Sn2+、Pb2+、Sb3+、Bi3+),采用IR、XRD1、83WNMR等手段对配合物结构进行了表征,表明配合物仍然具有Keggin骨架结构;同时对配合物的热稳定性进行了讨论,4A和5A族金属元素的引入使配合物的热稳定性发生了较大变化,结果表明配合物在500℃以前是稳定的,较1∶12 Keggin结构配合物的热稳定性有较大提高。The 4A and 5A metal elements substituted heteropoly compounds with Mn as the central atom was synthesized directly. By means of ICP and TG analysis, the molecular formulas were confirmed as K13,14 [ M （ MnW11O39 ）2 ]·X H2O （ M = Sn^2＋ . Pb^2＋ . Sb^3＋ . Bi^3＋ ）. The compounds were characterized by IR,XRD and ^183WNMR. It was revealed the compounds were of Keggin structure. Thermal stabilities of the compounds substituted with 4A and 5A metal elements was changed greatly. The results showed that the compounds were stable before 500℃ and were of higer thermal stability than 1 ： 12 Keggin structure compounds.

关 键 词：杂多配合物 主族元素 热稳定性 

分 类 号：TQ426.91[化学工程]