The incommensurate structure of K3In(PO4)2

被引：14

作者：

Arakcheeva, A

Chapuis, G ^{[1
]}

Petrícek, V

Dusek, M

Schönleber, A

机构：

[1] Univ Lausanne, Inst Cristallog, BSP Dorigny, CH-1015 Lausanne, Switzerland

[2] RAS, AA Baikov Met Inst, Moscow 119991, Russia

[3] Acad Sci Czech Republic, Inst Phys, Prague 18221, Czech Republic

来源：

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE | 2003年 / 59卷

关键词：

D O I：

10.1107/S0108768102021195

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The incommensurately modulated structure of K3In(PO4)(2) has been solved and refined. The origin of the modulation relates to the ordering of K cations within the hexagonal close packing of the PO4 anions. The driving forces for the modulation of the other cations are In-P and K-P interactions. The modulation of O atoms of rigid PO4 units follows the cations in order to stabilize the InO6 octahedron. It is shown that the previously published three-dimensional structure rerned from powder diffraction data obtained at room temperature is an average structure. Therefore the incommensurately modulated phase of K3In(PO4)(2) is the only one that has been unequivocally identired at room temperature. The origin of the modulation is discussed in comparison with the structures of Na3InP2, alpha- and beta-Na3In(PO4)(2), Na3Fe(PO4)(2) and Rb3In(PO4)(2).

引用

页码：17 / 27

页数：11

共 11 条

[1]

[Anonymous], JANA2000 STRUCTURE D

[2] CRYSTAL-STRUCTURE OF TRISODIUM TECTO-DIPHOSPHIDOINDATE, NA3INP2 [J].