十一钼硅钴杂多蓝H_8[SiMo_(11)Co(H_2O)O_(39)]·20H_2O的合成与晶体结构  

Synthesis and Crystal Structure of Undecamolybdocobaltosilcate Heteropolyblue H_8[SiMo_(11)Co(H_2O)O_(39)]. 20H_2O

作　　者：刘杰[1] 彭军[1] 周云山[1] 王恩波[1] 邢彦[2] 林永华[2] 贾恒庆[2] 

机构地区：[1]东北师范大学化学系,长春130024 [2]中国科学院长春应用化学研究所,长春130022

出　　处：《Chinese Journal of Structural Chemistry》1998年第3期225-229,共5页结构化学（英文）

基　　金：国家自然科学基金

摘　　要：采用电解法制备了未见文献报道的杂多蓝H8[SiMo11Co（H2O）O39]·20H2O，通过X-射线衍射测定了其晶体结构，该晶体属单斜晶系，空间群P21；。晶胞参数全矩阵最小二乘法修正至中心原子Si与4个氧形成四面体结构，配原子M（M＝11／12Mo＋1／12Co）与O形成12个MO6八面体结构3个MO6共边形成4个M3O13三金属簇，4个三金属簇与SiO4四面体共角相连形成阴离子结构。Heteropoly blue H8[SiMo11Co(H2O)O39] 20H2O was synthesized by elcctrolytic reductionmethod- The crystal structurc of H8 [SiMo11Co(H2O)O39]. 20H2O was detcrmined by X-raydiffraction. The crystals are monoclinic with space groupThe structure was refincd by full-matrix least-squares method to R=0.P531 and wR= 0. 1447. The anion has the Keggin XM12O40 structurein which four M3O13 groups consisting of thrce edge - sharing MO6 octahcdra (M = 11/12Mo+1/12Co) are linked together with cornersharing and with a central XO4 tetrahedron by sharing itsoxygen atoms.

关 键 词：杂多蓝 合成 晶体结构 十一钼硅钴 

分 类 号：O614.812[理学—无机化学]