BE3(ASO4)2.2H2O, A NEW BERYLLOARSENATE PHASE CONTAINING BRIDGED TETRAHEDRAL 3-RINGS

被引：6

作者：

HARRISON, WTA ^{[1
]}

NENOFF, TM ^{[1
]}

GIER, TE ^{[1
]}

STUCKY, GD ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT CHEM,SANTA BARBARA,CA 93106

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1994年 / 111卷 / 02期

关键词：

D O I：

10.1006/jssc.1994.1221

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The high-temperature/high-pressure hydrothermal synthesis and X-ray single crystal structure of Be3(AsO4)2 . 2H2O are described. The title compound contains a three-dimensional network of BeO4 and AsO4 tetrahedra, whose structural motif includes infinite layers of ''bridged'' tetrahedral 3- and 4-rings. Be-9 MAS NMR data are consistent with the Be-atom environments in the crystal structure. Crystal data for Be3(AsO4)2 . 2H2O; M(r) = 340.91, monoclinic, space group C2/c (No. 15), a = 16.318(2) angstrom, b = 4.6664(3) angstrom, c = 9.8755(7) angstrom, beta = 93.777(3)degrees, V = 750.37 angstrom3, Z = 4. Final disagreement values of R = 3.59% and R(w) = 3.79% were obtained for 1289 observed reflections with I > 3sigma(I). (C) 1994 Academic Press, Inc.

引用

页码：224 / 228

页数：5

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