Sulfur(IV) compounds as ligands: Part XXV. Halfsandwich ruthenium thiosulfonato complexes. Crystal and molecular structure of [CpRu(dppe){SSO2(4-C6H4Cl)}]

Reaction of the hydrogen sulfido complexes [CpRu(PP)(SH)] (PP=dppm (1), dppe (2)) with sulfonyl chlorides RSO2Cl at −70°C in THF gave the ruthenium thiosulfonato complexes [CpRu(PP)(SSO2R)] (PP=dppm (3), dppe (4), R=Me (a), Ph (b), 4-C6H4Cl (c), 4-C6H4NO2 (d)). The structure of 4c was determined by X-ray crystallography. Important molecular geometry data are: RuS(1) 239.3(2), S(1)S(2) 203.2(2), S(2)O(1) 145.0(5), S(2)O(2) 144.1(5) pm; RuS(1)S(2) 104.23(8)°.