Crystal structure of K2V8O21 and Tl2V8O21 / Tyutyunnik AP,Zubkov VG,Krasil'nikov VN,Svensson G,Sayagues MJ // SOLID STATE SCIENCES. - 2005. - V. 7, l. 1. - P. 37-43.

ISSN/EISSN:

1293-2558 / нет данных

Type:

Article

Abstract:

The crystal structures of K2V8O21 and Tl2V8O21 have been determined and refined, using both neutron and X-ray powder diffraction data. K2V8O21 (TI2V8O21) crystallises in the monoclinic space group C2/m (C2/m) with the unit cell parameters a = 14.9402(2) (15.1405(4)) Angstrom, b = 3.61823(4) (3.61309(6)) Angstrom, c = 14.7827(2) (14.9712(2)) Angstrom and beta = 91.072(1)degrees (89.967(2)degrees). The structures consist of VO6 octahedra and VO5 pyramids forming {[}V8O21](2-) units running along the b axis. These units can then be divided into three columns: (i) two edge-sbaring VO5 pyramids, (ii) columns of rock-salt type structure and (iii) single chains of VO5 pyramids. The KM ions are found in tunnels formed by the {[}V8O2](2-) units. (C) 2004 Elsevier SAS. All rights reserved.

Author keywords:

crystal structure; oxovanadate; X-ray powder diffraction; electron diffraction DECOMPOSITION; TRIVANADATE; PHASES

DOI:

10.1016/j.solidstatesciences.2

Web of Science ID:

ISI:000226561200006

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JAN
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Keywords-Plus	DECOMPOSITION; TRIVANADATE; PHASES
Research-Areas	Chemistry; Physics
Web-of-Science-Categories	Chemistry, Inorganic \& Nuclear; Chemistry, Physical; Physics, Condensed Matter
Author-Email	gunnar@struc.su.se
ResearcherID-Numbers	Tyutyunnik, Alexander/P-2230-2015 SAYAGUES, MARIA JESUS/J-7039-2012
ORCID-Numbers	SAYAGUES, MARIA JESUS/0000-0002-5555-310X
Number-of-Cited-References	22
Usage-Count-Since-2013	14
Journal-ISO	Solid State Sci.
Doc-Delivery-Number	891DJ