SYNTHESIS AND STRUCTURE OF THE NEW LAYERED TERNARY SELENIDE NA4CD3SE5

被引：8

作者：

ANSARI, MA ^{[1
]}

IBERS, JA ^{[1
]}

机构：

[1] NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1993年 / 103卷 / 02期

关键词：

D O I：

10.1006/jssc.1993.1103

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The new ternary compound Na4Cd3Se5 has been prepared by the reaction of CdSe with Na2Se4 at 300/350°C. Na4Cd3Se5 crystallizes in space group D1624-Pnma of the orthorhombic system with four formula unitsin a cell of dimension a = 14.026(1) ³, b = 4.234(2) ³, c = 20.105(1) ³ at 110 K. The structure consists of zigzag layers of 7 z[Cd3Se4-5] separated by Na- cations.Alternatively, these layers can be considered as trimers of corner-sharing CdSe4 tetrahedra. The Cd atoms are each tetrahedrally coordinated to four Se atoms at distances ranging from 2.604(1) ³ to 2.718(1) ³. Each Na atom is surrounded in a square pyramidal manner by five Se atoms at distances of 2.82 to 3.11 ³. © 1993 Academic Press, Inc.

引用

页码：293 / 297

页数：5

共 31 条

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