中华医学超声杂志

应用化学 ›› 1991, Vol. 0 ›› Issue (5): 42-48.

• 研究论文 • 上一篇    下一篇

杂多酸盐K4H[SiMO11VO40]·18H2O 1和K4H2[PMo9V3O40]·18H2O 2的晶体结构

金钟声1, 卫革成1, 朴公植2, 单永奎3   

  1. 1. 中国科学院长春应用化学研究所, 长春 130022;
    2. 延边大学化学系;
    3. 哈尔滨师范大学化学系
  • 收稿日期:1990-04-04 修回日期:1990-07-03 出版日期:1991-10-10 发布日期:1991-10-10

CRYSTAL STRUCTURE OF K4H[SiMo11VO40]·18H2O(1) AND K4H2[PMo9V3O40]·18H2O(2)

Jin Zhongsheng1, Wei Gecheng1, Piao Jinzhi2, Shan Yongkui3   

  1. 1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
    2. Department of Chemistry, Yan Bian University, Jilin Yanlbian;
    3. Department of Chemistry, Harbin Normal University, Harbin
  • Received:1990-04-04 Revised:1990-07-03 Published:1991-10-10 Online:1991-10-10

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摘要： 在-90℃下用X线单晶衍射法测定了标题化合物的晶体结构。晶体属P421c〔P4/mnc〕,a=12.540(2)〔12.515(3)〕,c=17.565(5)〔17.636(7)〕Å,z=2.用1672〔788〕个独立可观测反射精修结构参数得R=0.059〔0.057〕。1中的Si是4配位。Si-O=1.58Å。M(M=Mo,V)是6配位,M-O=1.64-2.37Å。K是7配位,K-O=2.80～3.11Å。在化合物2中,PO4是无序的,P-O=1.51Å,M-O=1.63～2.47Å,K是7配位,K-O=2.85～3.10Å。两个晶体都是多层二维的网状结构。

关键词: 钒钼硅杂多酸, 钒钼磷杂多酸, 晶体结构

Abstract: The crystal structures of the title compounds were determined by single crystal X-raydiffractometry at - 90℃。The complexes crystallize in tetragonal space groups P421c[P4/ mnc] with Z = 2[2].Lattice parameters are a = 12.540(2) [12.515(3)], c = 17.565(5) [17.636(7)]Å, V = 2762 (1) [2762 (2)]Åε.The structures were solved by direct methods and Fouriertechniques and refined by least-squares techniques to R = 0.059[0.057] for 1672[788] reflec-tions.Si in compound (1) is 4-coordinated, Si-O = 1.58Å.M(M = Mo, V) is 6-coordinated,M-O = 1.64 - 2.37Å.K is 7-coordinated, K-O = 2.80—3.11Å.In compound (2), PO4 isdisordered, P-O = 1.51Å, M-O = 1.63—2.47Å, K is 7-coordinate, K—O = 2.85～3.10Å.Bothstructures are in network.

Key words: heteropolyacid, crystal structure

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