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Synthesis and Structure of K6H7〔Dy(SiMo6W5O39)2〕·10H2O
被引:0
|作者:
WANG Xiao-Guang(Department of Chemistry
CHU Wen-Ling
WU Yue
XING Yan
LIN Yong-Hua
BAI Shi-Ying(Changchun Institute of Applied Chemistry
机构:
来源:
关键词:
synthesis;
lanthanide;
crystal structure;
heteropoly compound;
D O I:
10.14102/j.cnki.0254-5861.1997.03.016
中图分类号:
O614 [金属元素及其化合物];
学科分类号:
070301 ;
081704 ;
摘要:
K6H7 [Dy(SiMo6W5O39)2] 10H2O, Mr= 4878. 5, is triclinic, sapcegroup P1 with a= 22. 697(5) A; b= 12. 835(4) A; c= 18. 216(6) A; a= 90. 56(2); β= 98. 24(2); γ= 90. 51 (2)°;V= 5251 (2) A3; Z= 2, Dc= 3.08 g/cm3; F(000) = 4321; S = 1. 550, μ= 183.65 cm-1. Refinement resulted in a final R of0.091, based on 7816 with I>3δ independent renections. The structure contains discrete [Dy (SiW5Mo6O39) 2] 13 - anions. The orientations fo the W and Mo atoms are random in the crystal. The MO6 octahedron and SiO4 tetrahedron are somewhat distorted.
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页码:233 / 238
页数:6
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