The crystal structure of calcium chromate(VI), CaCrO4

被引：15

作者：

Weber, G ^{[1
]}

Range, KJ ^{[1
]}

机构：

[1] UNIV REGENSBURG,INST ANORGAN CHEM,D-93053 REGENSBURG,GERMANY

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 1996年 / 51卷 / 05期

关键词：

calcium chromate(VI); crystal structure; zircon-type structure;

D O I：

10.1515/znb-1996-0523

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The zircon-type structure of calcium chromate(VI), CaCrO4, has been confirmed and refined from single-crystal X-ray data. The compound crystallizes tetragonaly, space group I4(1)/amd, with a = 7.222(2), c = 6.285(1) Angstrom, c/a = 0.8703 and Z = 4. The structure comprises isolated, slightly distorted CrO4 tetrahedra (Cr-O = 1.646(3) Angstrom) which are connected with CaO8 dodecahedra (<Ca-O> = 2.556 Angstrom) by edge- and corner-sharing, The three-dimensional framework thus created contains rather large holes which are, however, empty in the case of CaCrO4.

引用

页码：751 / 753

页数：3

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