Structure, Reactivity, and Computational Studies of a Novel Ruthenium Hydrogen Sulfide Dihydride Complex

Addition of 1 atm of H2S to [Ru(IMes)2(CO)(EtOH)H2] (IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene) affords the airstable hydrogen sulfide dihydride complex, [Ru(IMes)2(CO)(H2S)H2] 2. Treatment of 2 with excess H2S leads to formation of the 16-electron bis-hydrosulfido complex, [Ru(IMes)2(CO)(SH)2] 3. Preliminary studies show that 3 reacts with both H2 and CO in solution as well as in the solid state. Both 2 and 3 have been structurally characterized.