title: Bis(dimethyl sulfoxide-S)tetrakis(&mgr;-p-hydroxybenzoato-O:O')dirhodium(II)-tetra kis(&mgr;-butyrato-O:O')bis(dimethyl sulfoxide-S)dirhodium(II) cocrystal ethanol disolvate
abstract: The title structure, [Rh(2)(C(7)H(5)O(3))(4)(C(2)H(6)OS)(2)]. [Rh(2)(C(4)H(7)O(2))(4)(C(2)H(6)OS)(2)].2C(2)H(6)O, contains two discrete neutral Rh-Rh dimers cocrystallized as the ethanol disolvate. Each dimer is situated on an inversion center. The butyrate chain displays disorder in one C-atom position. In each dimer, the dimethyl sulfoxide ligand (dmso) is bound via S, as expected. The ethanol is a hydrogen-bond acceptor for one p-hydroxybenzoate hydroxyl group and acts as a hydrogen-bond donor to the dmso O atom of a neighboring p-hydroxybenzoate dirhodium complex. A third hydrogen bond is formed from the other p-hydroxybenzoate hydroxyl group to the dmso O atom of a butyrate-dirhodium complex.
authors.affiliation: Department of Chemistry, Georgetown University, Box 571227, Washington, DC 20057-1227, USA.
authors.initials: NN
authors.lastname: Sveshnikov
authors.initials: MH
authors.lastname: Dickman
authors.initials: MT
authors.lastname: Pope