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十一钼硅钴杂多蓝H₈[SiMo₁₁Co（H₂O）O₃₉]·20H₂O的合成与晶体结构

Synthesis and Crystal Structure of Undecamolybdocobaltosilcate Heteropolyblue H₈[SiMo₁₁Co（H₂O）O₃₉]. 20H₂O

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【Author】 LIU Jie ;PENG Jun ;ZHOU Yun-Shan; WANG En-Bo(Department of Chemislry, Northeast Normal Uniuersity, Changchun 130024)XING Yan LIN Yong-Hua JIA Heng-Qing(Changchun Institute of Applied Chemistry, The Chinese Academy of Sciences,Changchun, 130022)

【机构】东北师范大学化学系!长春； 130024；中国科学院长春应用化学研究所!长春； 130022；

【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。更多还原

【Abstract】 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.更多还原