1-Methylpiperazine-1,4-dium bis(hydrogen oxalate)

Abstract

In the crystal structure of the title compound, C5H14N22+·2HC2O4−, the two crystallographically independent hydrogen oxalate anions are linked by strong intermolecular O—H...O hydrogen bonds, forming two independent corrugated chains parallel to thebaxis. These chains are further connected by N—H...O and C—H...O hydrogen bonds originating from the organic cations, forming a three-dimensional network. The diprotonated piperazine ring adopts a chair conformation, with the methyl group occupying an equatorial position.