Half-sandwich ruthenium thiocarbonate complexes: Structures of CpRu(PPh3)2SCO2Bun, CpRu(dppe)SCO2Bun and CpRu(PPh3)(CO)SCO2Bun

Thiocarbonate ruthenium complexes of the form CpRu(L)(L′)SCO2R (L = L′ = PPh3 (1), 1/2 dppe (2), L = PPh3, L′ = CO (3); R = Et (a), Bun (b), C6H5 (c), 4-C6H4NO2 (d)) have been synthesized by the reaction of the corresponding sulfhydryl complexes, CpRu(L)(L′)SH, with chloroformates, ROCOCl, at low temperature. The bis(triphenylphosphine) complexes 1 can be converted to 3 under CO atmosphere. The crystal structures of CpRu(PPh3)2SCO2Bun (1b), CpRu(dppe)SCO2Bun (2b), and CpRu(PPh3)(CO)SCO2Bun (3b) are reported.