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Crystal data for sodium heptahydrogenselenite, NaH 7 (SeO 3 ) 4
Author(s) -
Mička B. K. Z.,
Podlahova J.
Publication year - 1984
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889884011341
Subject(s) - diffractometer , crystallography , crystal (programming language) , powder diffraction , diffraction , solubility , crystal structure , diagram , space group , chemistry , materials science , x ray crystallography , physics , mathematics , optics , computer science , programming language , statistics
NaH 7 (SeO 3 ) 4 crystallized under the conditions derived from the solubility diagram of the Na 2 SeO 3 –H 2 SeO 3 –H 2 O system at 298 K. The Weissenberg patterns showed systematic absences indicating the space group P 2 1 / c . The cell dimensions were refined by least squares from powder diffractometer data. a = 5.784(2), b = 4.938(2), c = 20.08(1) Å, β = 100.39 (3)°, V = 564.1(4) Å 3 , Z = 2, D m = 3.173(3), D x = 3.166 Mg m −3 . Cu Kα radiation. The crystal structure is unknown. The JCPDS Diffraction File No. for NaH 7 (SeO 3 ) 4 is 34‐1488.