Crystal structure of di-μ-isobutyrato-κ4O:O′-bis[cis-dichlorido(dimethyl sulfoxide-κS)rhenium(III)]

The title compound, [Re-2(C3H7COO)(2)Cl-4{(CH3)(2)SO}(2)], comprises binuclear complex molecules [Re-Re = 2.24502 (13) angstrom] involving cis-oriented double carboxylate bridges, four equatorial chloride ions and two weakly bonded O atoms from dimethyl sulfoxide ligands in the axial positions at the Re-III atoms. In the crystal, molecules are linked into corrugated layers parallel to (101) by very weak C-H center dot center dot center dot Cl and C-H center dot center dot center dot O hydrogen-bonding interactions. C-H center dot center dot center dot Cl hydrogen bonding provides the links between layers to consolidate a three-dimensional framework.