Ba[Co<sub>3</sub>(VO<sub>4</sub>)<sub>2</sub>(OH)<sub>2</sub>] with a regular Kagomé lattice

Author(s)
Tamara Đorđević, Ljiljana Karanovic
Abstract

The new layered title compound, barium di--hydroxido-di--vanadato-tricobaltate(II), was prepared under low-temperaturehydrothermal conditions. Its crystal structure comprisesCo2+ and O2ions in the Kagome´ geometry. The octahedralCo3O6(OH)2 Kagome´ layers, made up of edge-shared CoO4-(OH)2 octahedra with Co on a site of 2/m symmetry, alternatealong the c axis with barium vanadate heteropolyhedral layers,in which Ba is on a site of 3m symmetry and Vis on a site of 3msymmetry. All three O atoms and the H atom also occupyspecial positions: two O atoms and the H atom are on siteswith 3m symmetry and one O atom is on a site with msymmetry. Ba[Co3(VO4)2(OH)2] represents the first compoundfrom the four-component BaO-CoO-V2O5-H2Osystem and its structure is topologically related to the mineralsvesignieite, Ba[Cu3(VO4)2(OH)2], and bayldonite, Pb[Cu3-(AsO4)2(OH)2].

Organisation(s)
Department of Mineralogy and Crystallography
External organisation(s)
University of Belgrade
Journal
Acta Crystallographica. Section C: Crystal Structure Communications
Volume
69
Pages
114-118
No. of pages
5
ISSN
0108-2701
DOI
https://doi.org/10.1107/S0108270113001972
Publication date
2013
Peer reviewed
Yes
Austrian Fields of Science 2012
105113 Crystallography
Portal url
https://ucrisportal.univie.ac.at/en/publications/78aee595-40f5-4ce2-a3fe-f4280ff6f03a