New dithiolate-bridged rhodium complexes

Publisher Website
Google Scholar
Abstract
Addition of a dithiol ligand HS(CH2)nSH (n= 2–4) to [{Rh(µ-OMe)(cod)}2](cod = cycloocta-1,5-diene) afforded dithiolate-bridged complexes [{Rh2[µ-S(CH2)nS](cod)2}x](x= 1 or 2). These diene complexes react with carbon monoxide to give the binuclear tetracarbonyl complexes [Rh2{µ-S(CH2)nS}(CO)4]. The crystal structures of [Rh2{µ-S(CH2)nS}(cod)2](n= 2 or 3) have been determined by X-ray diffraction methods. A study of the electronic structure of the complexes by analysis of the topology of the charge density shows that in spite of a zero formal bond order between the rhodium atoms a direct metal–metal interaction may be characterized.