| SYNTHESIS AND CRYSTAL STRUCTURE OF HETEROPOLY MOLYBDOSILICIC LANTHANIDE K_(10)H_3[Pr(SiMo_(11)O_(39))_2]·18H_2O |
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| 引用本文： | 单永奎,刘宗绪,金钟声,卫革成,刘永盛,王恩波.SYNTHESIS AND CRYSTAL STRUCTURE OF HETEROPOLY MOLYBDOSILICIC LANTHANIDE K_(10)H_3[Pr(SiMo_(11)O_(39))_2]·18H_2O[J].中国科学B辑(英文版),1991(5). |
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| 作者姓名： | 单永奎 刘宗绪 金钟声 卫革成 刘永盛 王恩波 |
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| 作者单位： | Harbin Normal University，Harbin 150080，PRC，Harbin Normal University，Harbin 150080，PRC，Changchun Institute of Applied Chemistry，Academia Sinica，Changchun 130022，PRC，Changchun Institute of Applied Chemistry，Academia Sinica，Changchun 130022，PRC，Changchun Institute of Applied Chemistry，Academia Sinica，Changchun 130022，PRC，Northeast Normal University，Changchun 130024，PRC |
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| 摘 要： | The intensity data of the title complex were collected at a low temperature of -90℃. Thecompound crystallizes in the monoclinic space group P2_1/n, a = 17.504(2), b = 27.323 (5),c = 21 .616(4)A, β= 104.49 (2)°, Z=4. The structure was solved by Patterson and Fouriertechniques and refined by least- squares to an R = 0.088 for 8320 independent reflections.The central Pr ion is bonded to eight oxygen atoms from two molybdosilicic heteropolyligands to form a square antiprism. The Pr- O average distance is 2.44 (2)A. Both molyb-dosilicic heteropoly ligands are of a defective α- Keggin structure.
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