Orola Liana, Veidis Mikelis V, Belyakov Sergey, Actins Andris
Acta Crystallogr Sect E Struct Rep Online. 2008 Jul 16;64(Pt 8):m1027. doi: 10.1107/S160053680802120X.
The anion of the title compound, also called sygethin dihydrate, 2K(+)·C(18)H(20)O(6)S(2) (2-)·2H(2)O, has crystallographic inversion symmetry. The K(+) cation is surrounded by eight O atoms in a distorted cubic coordination geometry, forming extended K-O-S networks. There are also O-H⋯O hydrogen bonds.
标题化合物(也称为水合西格辛)的阴离子2K⁺·C₁₈H₂₀O₆S₂²⁻·2H₂O具有晶体学反演对称性。K⁺阳离子被八个O原子以扭曲的立方配位几何构型包围,形成扩展的K - O - S网络。还存在O - H⋯O氢键。