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

Abstract

The title compound, [Re2(C3H7COO)2Cl4{(CH3)2SO}2], comprises binuclear complex molecules [Re—Re = 2.24502 (13) Å] 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 ReIII atoms. In the crystal, molecules are linked into corrugated layers parallel to (101) by very weak C—H...Cl and C—H...O hydrogen-bonding interactions. C—H...Cl hydrogen bonding provides the links between layers to consolidate a three-dimensional framework.

Keywords

• crystal structure
• rhenium(III)
• cluster
• alkylcarboxylate complex
• quadruple metal–metal bond
• hydrogen bonding