过渡金属离子连接的2-D层状夹心型锑钨酸盐的合成与结构表征  

Synthesis and structural characterization of 2-D sandwich-type antimoniotungstate linked by transition metal cations

作　　者：苏连江[1] 刘洪胜[1] 王丽敏[1] 薛韩[1] 唐龙[1] 

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,大庆163712

出　　处：《科学通报》2011年第9期664-668,共5页Chinese Science Bulletin

基　　金：国家自然科学基金(21001020);黑龙江省自然科学基金(B201012);大庆师范学院博士基金(09ZB01)资助项目

摘　　要：利用常规合成方法合成了1个夹心型锑钨酸盐H4.8{Mn(H2O)4}2[{Mn(H2O)2}2{Mn2-(H2O)4}0.8{W2(H2O)2(OH)2}0.2(B-β-SbW9O33)2]·16H2O(1),对其进行了红外光谱和热重表征,并测定了晶体结构.晶体衍射数据显示,该化合物属于三斜晶系,P-1空间群,a=13.3636(17),b=14.1137(18),c=14.1369(18),α=95.989(2)°,β=106.839(2)°,γ=103.708(2)°,V=2436.1(5)3,Z=1,Rl=0.0652,wR2=0.1564.晶体解析表明,化合物1中夹心型锑钨酸盐多阴离子通过过渡金属Mn2+离子共价连接成2-D层状结构.Sandwich-type tungstoantimonate was synthesized via aqueous solution synthesis. We structurally characterized the compound using elemental analysis, infrared spectroscopy, thermogravimetric analysis and single-crystal X-ray diffraction. The results suggested that the compound is a triclinic system with a P-1 space group. The two-dimensional layered structure was formed through covalent bonding interactions between the sandwich-type polyoxoanion and the Mn2＋ cations.

关 键 词：多金属氧酸盐 锑钨酸盐 夹心型结构 晶体结构 

分 类 号：O614.613[理学—无机化学]