Bis[trans-dichloridobis(propane-1,3-diamine-κ(2) N,N′)chromium(III)] tetra­chloridozincate determined using synchrotron radiation

In the title compound, [CrCl(2)(C(3)H(10)N(2))(2)](2)[ZnCl(4)], the Cr(III) atom is coordinated by four N atoms of propane-1,3-diamine (tn) and two Cl atoms in a trans arrangement, displaying a distorted octa­hedral geometry with crystallographic inversion symmetry; the Zn atom in the [ZnCl(4)](2−) anion lies on a -4 axis. The orientations of the two six-membered chelate rings in the complex cation are in an anti chair–chair conformation with respect to each other. The Cr—N bond lengths are 2.087 (6) and 2.097 (6) Å. The Cr—Cl and Zn—Cl bond lengths are 2.3151 (16) and 2.3255 (13) Å, respectively. Weak inter­molecular hydrogen bonds involving the tn NH(2) groups as donors and chloride ligands of the anion and cation as acceptors are observed.