The crystal structure of sodium selenite Na2SeO3 from powder diffraction data

Authors
Helmholdt, RB Sonneveld, EJ Schenk, H
Citation
Rb. Helmholdt et al., The crystal structure of sodium selenite Na2SeO3 from powder diffraction data, Z KRISTALL, 214(3), 1999, pp. 151-153
Citations number
9
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ZEITSCHRIFT FUR KRISTALLOGRAPHIE
ISSN journal
00442968 → ACNP
Volume
214
Issue
3
Year of publication
1999
Pages
151 - 153
Database
ISI
SICI code
0044-2968(1999)214:3<151:TCSOSS>2.0.ZU;2-8
Abstract
The crystal structure of sodium selenite, Na2SeO3, has been determined from X-ray powder diffraction data. The direct method package POWSIM has been u sed to determine the structure. The crystal structure is monoclinic, P2(1)/ c, Z = 4, n = 4.8963(2) Angstrom, b = 9.9849(4) Angstrom, c = 6.8391(3) Ang strom, beta = 91.994(3)degrees and V = 334.3 Angstrom(3). The final R-Bragg value obtained with Rietveld refinement was 3.3%. The structure consists o f [NaO6] octahedra and [SeO3] pyramids which are linked together through th eir edges.