INCORPORATION OF AL3+ IN IR3O12 OCTAHEDRA-TRIPLE IN BA4IR2ALO10

被引：13

作者：

NEUBACHER, M ^{[1
]}

MULLERBUSCHBAUM, H ^{[1
]}

机构：

[1] UNIV KIEL,INST ANORGAN CHEM,OLSHAUSENSTR 40-6,W-2300 KIEL 1,GERMANY

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1991年 / 594卷 / 03期

关键词：

OXOIRIDATE; BARIUM; IRIDIUM; ALUMINUM; CRYSTAL STRUCTURE;

D O I：

10.1002/zaac.19915940116

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Single crystals of Ba4Ir2AlO10 were prepared by solid state/flux reactions. It crystallizes with orthorhombic symmetry: space group D2h18-Cmca; a = 5.778; b = 13.352; c = 13.084 angstrom; Z = 4. The structure is characterized by face connection of three IrO6- or Ir/AlO6-octahedra. X-ray investigations show an ordered occupation of the centric octahedron by Ir and a statistically distribution of Ir and Al in the adjacent octahedra. Calculations of the coulomb term of the lattice energy support a charge distribution in the manner Ir5+/Al3+-Ir4+-Ir5+/Al3+.

引用

页码：133 / 138

页数：6

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