A novel binuclear rhodium complex with two mercapto bridges and two terminal thioether groups
Abstract
The cyclic thioether–thioester ligand [7,8-µ-SCH2C(O)S-7,8-C2B9H10]-, [L1]-, is a source of strongly co-ordinating mercapto and thioether groups. Upon reaction with complexes with metal ions in oxidation state higher than+1, [L1]- modifies to the dianionic ligand [7-S,8-SCH2C(O)OMe-7,8-C2B9H10]2-, [L2]2-. Reaction of [NMe4][L1] with [M2(C5Me5)2Cl4] (M=RhIII or IrIII) in MeOH produces [M2(C5Me5)2(L2)2], a molecule with an earmuff shape.