Crystal structure of potassium orthoselenate(IV), K(2)SeO(3)

Crystal structure data for potassium orthoselenate(IV), K(2)SeO(3), are reported for the first time. Colorless, block-shaped crystals were grown in a potassium hydro­flux, i.e. under ultra-alkaline conditions, within 10 h. K(2)SeO(3) crystallizes isostructural with Na(2)SO(3) and K(2)TeO(3) in the t...

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Detalles Bibliográficos
Autores principales: Albrecht, Ralf, Doert, Thomas, Ruck, Michael
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2022
Materias:
Research Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9431792/
https://www.ncbi.nlm.nih.gov/pubmed/36072133
http://dx.doi.org/10.1107/S2056989022005175
Descripción
Sumario:Crystal structure data for potassium orthoselenate(IV), K(2)SeO(3), are reported for the first time. Colorless, block-shaped crystals were grown in a potassium hydro­flux, i.e. under ultra-alkaline conditions, within 10 h. K(2)SeO(3) crystallizes isostructural with Na(2)SO(3) and K(2)TeO(3) in the trigonal space group P [Image: see text] with lattice parameters a = 6.1063 (4) Å and c = 6.9242 (4) Å at 100 (1) K. In the trigonal–pyramidal, C (3v)-symmetric [SeO(3)](2–) anion, the bond length is 1.687 (1) Å, and the bond angle is 103.0 (1)°. Two of the three unique potassium cations exhibit a coordination number of six, and the third a coordination number of nine.

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