Cyclopentadienylruthenium complexes with sulphur ligands II. A comparative study of the reactivity of Ru(η-RC5H4)Cl(L)2 (R=H, CH3, CH3CO; L=CO, Ph2PCH2CH2PPh2/2, P(CH2CH2CN)3) towards anionic (S-S) donor ligands

Article abstract of DOI:10.1016/0022-328X(88)80509-6

The complexes Ru(η-RC5H4)Cl(PPh3)2 (R=H, CH3, CH3CO) readily react with the tertiary phosphines Ph2PCH2CH2PPh2 (dppe) and P(CH2CH2CN)3 (tcep) to give Ru(η-RC5H4)Cl(dppe) and Ru(η-RC5H4)Cl(tcep)2 (R=H, CH3, CH3CO).The dppe complex with R=CH3 reacts with (S2COR')^- ions to give Ru(η-CH3C5H4)(S2COR')(dppe) (R'=Me, Et) involving monodentate coordination of the dithiolate, and with (S2CNR'2)^- ions to give Ru(S2CNR'2)2(dppe) (R'=Et).The tcep complexes do not react with the dithiolates under these conditions.The reaction of Ru(η-C5H5)Cl(CO)2 with KS2COEt has also been studied.