Published April 2005 | Version v1
Journal article

Subsolidus phase relations in Na2O-CuO-Sb2On system and crystal structure of new sodium copper antimonate Na3Cu2SbO6

  • 1. Chemistry Faculty, Department of General and Inorganic Chemistry, Rostov State University, Zorge 7, Rostov-on-Don 344090 (Russian Federation)
  • 2. Department of Ceramics and Glass Engineering, CICECO, University of Aveiro, 3810-193 Aveiro (Portugal)

Description

Subsolidus phase relation studies in the NaSb3O7-Na3SbO4-CuO-CuSb2O6 quadrangle of Na2O-CuO-Sb2On system at 1123-1173K revealed the formation of one new compound Na3Cu2SbO6. It is a superstructure derived from α-NaFeO2 type, space group C2/m, lattice constants: a=5.6759(1)A, b=8.8659(1)A, c=5.8379(1)A, β=113.289(1)o. All ions are in octahedral environment, but CuO6 polyhedron exhibits strong elongation due to Jahn-Teller effect (Cu-O: 2.000(2)Ax2, 2.021(2)Ax2, 2.494(3)Ax2), whereas SbO6 octahedron is almost regular. The relationship to other similar superlattices is discussed

Additional details

Identifiers

DOI
10.1016/j.jssc.2005.02.002;
PII
S0022-4596(05)00053-8;

Publishing Information

Journal Title
Journal of Solid State Chemistry
Journal Volume
178
Journal Issue
4
Journal Page Range
p. 1165-1170
ISSN
0022-4596
CODEN
JSSCBI

Optional Information

Copyright
Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.