KVPO5, AN INTERSECTING TUNNEL STRUCTURE CLOSELY RELATED TO THE HEXAGONAL TUNGSTEN BRONZE

被引：39

作者：

BENHAMADA, L ^{[1
]}

GRANDIN, A ^{[1
]}

BOREL, MM ^{[1
]}

LECLAIRE, A ^{[1
]}

RAVEAU, B ^{[1
]}

机构：

[1] CRISMAT,ISMRA,CRISTALLOG & SCI MAT LAB,BLVD MARECHAL JUIN,F-14050 CAEN,FRANCE

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1991年 / 47卷

关键词：

D O I：

10.1107/S0108270190014044

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Potassium vanadium phosphate, M(r) = 201.01, orthorhombic, Pn2(1)a, a = 12.7640 (8), b = 10.5153 (9), c = 6.3648 (4) angstrom, V = 854.3 (2) angstrom 3, Z = 8, D(x) = 3.13 Mg m-3, lambda/D(Mo K-alpha) = 0.71073 angstrom, mu = 2.94 mm-1, F(000) = 776, T = 294 K, R = 0.028, wR = 0.033 for 1321 independent reflections with I > 3-sigma-(I). The title compound is isostructural with KTiPO5 described by Masse [Thesis (1974), Univ. of Grenoble, France]. Its mixed framework is built up from corner-sharing VO6 octahedra and PO4 tetrahedra delimiting tunnels where potassium cations are located. A new description of the structure is proposed. The host lattice VPO5 is built from infinite chains of octahedra [VO3]infinity, belonging to the hexagonal tungsten bronze structure, running along [011] and [011BAR]. Connection between the octahedral chains is ensured by single PO4 tetrahedra.

引用

页码：1138 / 1141

页数：4

共 7 条

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