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Acta Cryst. (2002). E58, i103-i104 [ doi:10.1107/S1600536802019384 ]
Abstract: The title compound, Na2SeO3, contains two crystallographically different Na+ ions, Na1 and Na2. Na1 is coordinated by four monodentate and one chelating SeO32- group, while two monodentate and two chelating selenite ions are attached to Na2. For both Na+ ions, a strongly distorted octahedral coordination results. The [NaO6] octahedra are linked via common edges. The SeO32- ion shows a pyramidal shape, due to the lone electron pair of the Se atom.
Online 25 October 2002
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