Guanidinium chloro-chromate.

In the title compound, guanidinium chloridotrioxidochrom-ate(VI), (CH(6)N(3))[CrClO(3)], both the cation and anion are generated by crystallographic mirror symmetry, with one O and one N atom and the Cr, Cl and C atoms lying on the mirror plane. The bond lengths in the guanidinium cation are inter-mediate between normal C-N and C=N bond lengths, indicating significant delocalization in this species. In the crystal structure, inter-molecular N-H⋯Cl inter-actions generate R(2) (1)(6) ring motifs. These ring motifs are further inter-connected by inter-molecular N-H⋯O hydrogen bonds into infinite chains along [010].