(M(SR)3L2) complexes or ruthenium(IV,III) and osmium(IV): structural integrity of the trigonal (M(SR)3)1+,0 cores

The coordination chemistry of ruthenium and osmium thiolate complexes supports the integrity of the trigonal (M(SR)3)1+,0 cores. Trigonal bipyramidal structures, with the CH3CN and a thiolate ligand at the axial positions, characterize the compounds (M(SR)4(CH3CN)), where M = Ru or Os and RS = S-2,3,5,6-Me4C6H and S-2,4,6-i-Pr3C6H2. When reacted with HBF4 or HPF6 in CH3CN, these compounds give (M(SR)3(CH3CN)2(BF4)). A representative member has been characterized by single crystal X-ray analysis.