Tetra-kis(μ-acetato-κ 2 O : O ')bis-[(tetra-hydro-furan-κ O )chromium(II)].

The title compound, [Cr 2 (C 2 H 3 O 2 ) 4 (C 4 H 8 O) 2 ] or [Cr 2 (OAc) 4 (THF) 2 ] (OAc is acetate, THF is tetra-hydro-furan), was obtained by recrystallization of anhydrous chromium(II) acetate [Cr 2 (OAc) 4 ] from hot tetra-hydro-furan. The centrosymmetric complex forms monoclinic crystals, space group C 2/ c , and consists of two Cr II atoms bridged by four acetate ligands. Additionally, each Cr II atom is coordinated by a terminal THF ligand, which leads to a square-pyramidal coordination.