STRUCTURE OF TRISUBSTITUTED TUNGSTOSILICATE ANION [A-β-SiW9Al3（H2O）2O36（μ3-O2/2）]214-

被引：0
|
作者：
Chen Ya-Guang Qu Lun Yu Peng Jun Yu Ming Chem. Dept.
机构：
来源：
Chinese Journal of Structural Chemistry | 1993年 / 05期
关键词：
Crystal Structure Keggin Structure Heteroplyanion;
D O I：
10.14102/j.cnki.0254-5861.1993.05.003
中图分类号：
学科分类号：
摘要：
Crystal of H14C[A-β-SiW9Al3(H2O)2O36(μ3-O2/2)]2 ·8H2O belongs to monoclinic system, space group P2/m. with a= 1 7. 525(6), b=14.348(3). c= 21. 669(8) A , β=113. 12(8)°, V = 5011 (3) A3,Z = 2. Dc = 3. 254 g. cm-3, A (MoKα) = 0. 70169 A , μ=223. 21 cm-1, F(000) = 4614, T = 298K. R=0. 066 for 3010 unique reflections [I≥5σ(I) ]. The crystal consists of water molecules, protons (or H3O+ ) and dimeric anions [A-β-SiW9Al3 (H2O)2O36(μ3-O2/2)D214.the half of which has a SiO1 tetrahedron in the center, a W3O13 group, two W2Al(H2O) O12 groups and a W2AlO13 group around the SiO4.
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页码：338 / 342
页数：5
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