THE CRYSTAL-STRUCTURES OF HG4SB2I3 AND CD4SB2I3

被引:20
作者
SHEVELKOV, AV [1 ]
DIKAREV, EV [1 ]
POPOVKIN, BA [1 ]
机构
[1] MV LOMONOSOV STATE UNIV,DEPT CHEM,LENINSKIE GORY 119899,MOSCOW V 234,USSR
关键词
D O I
10.1016/0022-4596(91)90306-3
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The crystal structures of Hg4Sb2I3 and Cd4Sb2I3 have been solved by X-ray single crystal techniques. Hg4Sb2I3 and Cd4Sb2I3 are isostructural and crystallize in the cubic system, space group Pa3, Z = 8, with cell dimensions a = 13.4392(6) Å for Hg4Sb2I3 and a = 13.4876(5) Å for Cd4Sb2I3. The compounds have a three-dimensional array built from six-membered rings containing mercury (cadmium), antimony, and iodine atoms. One-half of the antimony atoms are bound into Sb4-2 pairs with an SbSb distance of 2.75 Å. The absence of HgHg (or CdCd) and SbI bonding was determined. © 1991.
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页码:331 / 335
页数:5
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