正亚硒酸钾（IV）KSeO的晶体结构
Crystal structure of potassium orthoselenate(IV), KSeO.
作者信息
Albrecht Ralf, Doert Thomas, Ruck Michael
机构信息
Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, D-01062 Dresden, Germany.
Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, D-01187 Dresden, Germany.
出版信息
Acta Crystallogr E Crystallogr Commun. 2022 May 17;78(Pt 6):615-618. doi: 10.1107/S2056989022005175. eCollection 2022 Jun 1.
Crystal structure data for potassium orthoselenate(IV), KSeO, are reported for the first time. Colorless, block-shaped crystals were grown in a potassium hydro-flux, under ultra-alkaline conditions, within 10 h. KSeO crystallizes isostructural with NaSO and KTeO in the trigonal space group with lattice parameters = 6.1063 (4) Å and = 6.9242 (4) Å at 100 (1) K. In the trigonal-pyramidal, -symmetric [SeO] 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.
首次报道了正硒酸钾（IV）KSeO的晶体结构数据。在超碱性条件下，于钾氢通量中，10小时内生长出无色块状晶体。KSeO与NaSO和KTeO同构，在100(1)K时，结晶于三方空间群，晶格参数a = 6.1063(4) Å和c = 6.9242(4) Å。在三角锥状的C₃ᵥ对称[SeO₃]阴离子中，键长为1.687(1) Å，键角为103.0(1)°。三个独特的钾阳离子中有两个的配位数为6，第三个的配位数为9。
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