THE STRUCTURE OF SOLID TRIBROMOFLUOROMETHANE CFBR3 BY POWDER NEUTRON-DIFFRACTION

被引:12
|
作者
FITCH, AN
COCKCROFT, JK
机构
[1] INST MAX VON LAUE PAUL LANGEVIN, F-38042 GRENOBLE, FRANCE
[2] MAX PLANCK INST FESTKORPERFORSCH, W-7000 STUTTGART 80, GERMANY
来源
ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 1992年 / 202卷 / 3-4期
关键词
TRIBROMOFLUOROMETHANE; STRUCTURE; POWDER NEUTRON DIFFRACTION;
D O I
10.1524/zkri.1992.202.3-4.243
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
The crystal structure of solid tribromofluoromethane, CFBr3, has been solved ab-initio from powder neutron diffraction data using direct methods. There is a single solid phase between 1.5 K and the melting point at 198.5 K. The structure is orthorhombic, space group Pnma, Z = 4, with a = 8.4931(2) angstrom, b = 9.6439(2) angstrom, and c = 6.2272(2) angstrom at 1.5 K. The crystal structure at 190 K is also reported.
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页码:243 / 250
页数:8
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