Crystal structure of cis-di­chlorido­(1,4,8,11-tetra­aza­cyclo­tetra­decane-κ(4) N)chromium(III) (oxalato-κ(2) O (1),O (2))(1,4,8,11-tetra­aza­cyclo­tetra­decane-κ(4) N)chromium(III) bis(perchlorate) from synchrotron data

In the asymmetric unit of the title compound, [CrCl(2)(C(10)H(24)N(4))][Cr(C(2)O(4))(C(10)H(24)N(4))](ClO(4))(2) (C(10)H(24)N(4) = 1,4,8,11-tetra­aza­cyclo­tetra­decane, cyclam; C(2)O(4) = oxalate, ox), there are two independent halves of the [CrCl(2)(cyclam)](+) and [Cr(ox)(cyclam)](+) cations, and one perchlorate anion. In the complex cations, which are completed by application of twofold rotation symmetry, the Cr(III) ions are coordinated by the four N atoms of a cyclam ligand, and by two chloride ions or one oxalate bidentate ligand in a cis arrangement, displaying an overall distorted octa­hedral coordination environment. The Cr—N(cyclam) bond lengths are in the range of 2.075 (5) to 2.096 (4) Å while the Cr—Cl and Cr—O(ox) bond lengths are 2.3358 (14) and 1.956 (4) Å, respectively. Both cyclam moieties adopt the cis-V conformation. The slightly distorted tetra­hedral ClO(4) (−) anion remains outside the coordination sphere. The supra­molecular architecture includes N—H⋯O and N—H⋯Cl hydrogen bonding between cyclam NH donor groups, O atoms of the oxalate ligand or ClO(4) (−) anions and one Cl ligand as acceptors, leading to a three-dimensional network structure.