Synthesis and crystal structure of (NH4)(3)Cu4Ho2Br13. Further bromides of the (NH4)(3)Cu(4)M(2)Br(13) type (M=Dy-Lu, Y) and on Rb3Cu4Ho2Br13

被引：2

作者：

Wickleder, MS ^{[1
]}

Bohnsack, A ^{[1
]}

Meyer, G ^{[1
]}

机构：

[1] SONDERFORSCH BEREICH 173,HANNOVER,GERMANY

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1996年 / 622卷 / 04期

关键词：

rare earths; bromides; copper; synthesis; crystal structure;

D O I：

10.1002/zaac.19966220417

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Single crystals of (NH4)(3)Cu4Ho2Br13 were obtained for the first time from the reaction of CuBr with HoBr3 which was contaminated with NH4Br: cubic, space group Pn(3) over bar, Z = 2, a = 1101.71(5)pm. The crystal structure may be considered as a variant of the fluorite type according to [(HoBr6)(4)][(NH4)(6)(Cu4Br)2] = Ca4F8. Pure products can be prepared from the binary halides in glass ampoules at 350 degrees C. The bromides (NH4)(3)Cu(4)M(2)Br(13) (M = Dy-Lu, Y) and Rb3Cu4Ho2Br13 are isotypic with (NH4)(3)Cu4Ho2Br13.

引用

页码：675 / 678

页数：4

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