Na8[Zn4Ge8O18(OH)12]•2H2O:: An interrupted-framework zincogermanate built from [GeO3(OH)] and [Ge2(OH)2] units

被引：29
|
作者：
Reisner, BA
Tripathi, A
Parise, JB
机构：
[1] Natl Inst Stand & Technol, Ctr Neutron Res, Gaithersburg, MD 20899 USA
[2] SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA
[3] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2001年 / 11卷 / 03期
关键词：
D O I：
10.1039/b004668j
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A new layered germanate, Na-8[Zn4Ge8O18(OH)(12)]. 2H(2)O, has been synthesized from an aqueous solution containing germanium dioxide, zinc acetate and sodium hydroxide. Room temperature single crystal X-ray diffraction data indicate an orthorhombic cell with a = 13.036(3) Angstrom, b = 8.7286(17) Angstrom, c = 12.938(3) Angstrom, space group Pbcn (no. 60), and Z = 4. Chains of orthogonal four-rings, consisting of corner-sharing [Ge2Zn2] units bridged at the zinc centers, are connected to form a new tetrahedral sheet structure containing bifurcated 10-membered rings and the unique building blocks, [GeOn(OH)(4-n)] (n = 1, 2). The zincogermanate sheets are stacked along the c-axis and connected both by Na-O electrostatic interactions and a hydrogen bonding network composed of bound water molecules and terminal hydroxide anions.
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页码：887 / 890
页数：4
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