2009•Acta Crystallographica Section E Structure Reports OnlineOpen access

Tris(4-hydroxypyridinium) hydrogen sulfate–sulfate monohydrate

Yingming Xu, Shan Gao, Seik Weng Ng

Abstract

In the crystal structure of the title salt, 3C(5)H(6)NO(+)·HSO(4) (-)·SO(4) (2-)·H(2)O, the hydrogen sulfate ion is linked to the sulfate ion by an O-H⋯O hydrogen bond. The hydrogen sulfate-sulfate anion is a hydrogen-bond acceptor for the three independent cations and the uncoordinated water mol-ecule, the hydrogen-bonding inter-actions giving rise to a three-dimensional hydrogen-bonded network. In the hydrogen sulfate-sulfate species, one of the sulfate groups is disordered in respect of its O atoms in a 2:1 ratio.

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Key concepts: Sulfate, Tris, Hydrogen Sulfate, Chemistry, Organic chemistry, Biochemistry, Catalysis, Ionic liquid