摘要
由ＫＭｎＯ４和（ＮＨ４）６Ｍｏ７Ｏ２４４Ｈ２Ｏ合成了标题化合物Ｋ０．５（ＮＨ４）５．５［ＭｎＭｏ９Ｏ３２］６Ｈ２Ｏ，用ｘ－射线测定了晶体结构．该化合物的晶体属三方晶系，空间群Ｒ３２；ａ＝１５．８４６（４），Ｃ＝１２．３９６（３），Ｍｒ＝１６５７．２８，Ｖ＝２６９５．６３，Ｚ＝３，Ｄｃ＝３．８２ｇ／ｃｍ３，μ＝４１．５ｃｍ－１，Ｆ（０００）＝２９６７．对３０２４个可观测衍射［Ｆ０≥３σ（Ｆ０）］最终偏离因子Ｒ＝０．０３７，Ｒｗ＝０．０４３．结构测定表明：Ｍｎ（Ⅳ）与６个氧配位形成键长相同的ＭｎＯ６八面体，它位于［ＭｎＭｏ９Ｏ３２］６－阴离子的中心，而Ｍｏ（Ⅵ）均与氧原子六配位，形成９个畸变的ＭｏＯ６八面体．
Single crystals of the title complex K05(NH4)55[MnMo9O32]·6H2O obtained from the reaction of KMnO4 and (NH4)6Mo7O244H2O,crystallize in the Hexagonal,space group R32; with a=15846(4),c=12396(3); Mr=165728,V=269563,Z=3,Dc=382g/cm3,μ=415cm-1,F(000)=2967,final R(wR)=0037(0043) for 3024 unique intensity data [F0≥3σ(F0)].The structure analysis shows that manganese(Ⅳ)was coordinated by six oxygen to form MnO6 octahedron,MnO6 octahedron is located in the centre of anion [MnMo9O32]6-,while the each molybdenum(Ⅵ) was coordinated by six oxygen to form a distorted octahedron
出处
《福建师范大学学报（自然科学版）》
CAS
CSCD
1997年第4期45-49,共5页
Journal of Fujian Normal University：Natural Science Edition
基金
福建省自然科学基金
关键词
锰
杂多钼酸盐
合成
晶体结构
manganese,heteropolymolybdate,synthesis,crystal structure
