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Crystal structure of 2-(azaniumylmethyl)pyridinium bis(hydrogen squarate)
(Int Union Crystallography, 2017)
The asymmetric unit of the title compound, C6H10N22+center dot 2C(4)HO(4)(-), comprises two hydrogen squarate (Hsq(-); systematic name: 2-hydroxy-3,4-dioxocyclobutanolate) anions and a 2-(azaniumylmethyl) pyridinium dication. ...