Carbon-sulfur bond formation through the reaction of sulfur-bridged molybdenum clusters with acetylene. X-ray structures of [Mo3(μ3-S)(μ-O)(μ-S)2(H2O)9](CH3C6H4SO3)4.7H2O and [Mo3(μ3-S)(μ-O)(μ3-S2C2H2)(H2O)9](CH3C6H4SO3)4.7H2O
crystal structure molybdenum trinuclear cluster; molybdenum trinuclear sulfide ethenedithiolate cluster complex; acetylene reaction sulfide coordination molybdenum; thiol ethenedi molybdenum trinuclear cluster
[Mo3(μ3-S)(μ-O)(μ-S)2(H2O)9]4+ and [Mo3(μ3-S)(μ-S)3(H2O)9]4+ react with acetylene to produce clusters with alkenedithiolate ligands: [Mo3(μ3-S)(μ-O)(μ3-S2C2H2)(H2O)9]4+ and [Mo3(μ3-S)(μ-S)(μ3-S2C2H2)(H2O)9]4+. The crystal and mol. structures are reported for [Mo3(μ3-S)(μ-O)(μ3-S2C2H2)(H2O)9](CH3C6H4SO3)4.7H2O and [Mo3(μ3-S)(μ-O)(μ-S)2(H2O)9](CH3C6H4SO3)4.7H2O.