The structures and characterization of two new oxides of the Sr4PtO6 type: NaCa3IrO6 and NaCa3RuO6

被引：46

作者：

Claridge, JB ^{[1
]}

Layland, RC ^{[1
]}

Adams, RD ^{[1
]}

zurLoye, HC ^{[1
]}

机构：

[1] UNIV S CAROLINA,DEPT CHEM & BIOCHEM,COLUMBIA,SC 29208

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1997年 / 623卷 / 07期

关键词：

iridium; ruthenium; sodium; calcium; oxygen; crystal structure;

D O I：

10.1002/zaac.19976230721

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

NaCa3IrO6 (I) and NaCa3RuO6 (II) crystallize with trigonal (rhombohedral) symmetry in the space group R(3) over barc$, Z = 6, for I a = 9.272(3) Angstrom, c = 11.214(1) Angstrom; for II a = 9.244(3) Angstrom, c = 11.201(1) Angstrom. NaCa3IrO6 (I) and NaCa3RuO6 (II) are isotypic to compounds of the Sr4PtO6 structure type. The structures have been solved by means of single crystal X-ray diffraction data analysis with the reliability factors for I of R = 0.032 and R-W = 0.039; and the the reliability factors for II of R = 0.024 and R-W = 0.031. The structure consists of infinite chains of alternating face-sharing MO6 octahedra, where M = Ir or Ru, and NaO6 trigonal prisms. The chains are separated by the calcium cations.

引用

页码：1131 / 1134

页数：4