title: Creatinium hydrogen oxalate.
abstract: The crystal structure of the title compound, C(4)H(10)N(3)O(2) (+)·C(2)HO(4) (-), is stabilized by N-H⋯O and O-H⋯O hydrogen bonds. The anions are connected by an O-H⋯O hydrogen bond, leading to C(5) chain extending along c axis. The cations are dimerized around the corners of the unit cell, leading to an R(2) (2)(14) ring motif. This leads to a cationic mol-ecular aggregation at x = 0 or 1 and an anionic mol-ecular aggregation at x = 1/2.
authors.forename: A Jahubar
authors.initials: AJ
authors.lastname: Ali
authors.forename: S
authors.initials: S
authors.lastname: Athimoolam
authors.forename: S Asath
authors.initials: SA
authors.lastname: Bahadur