C−S Bond Cleavage in CpRu(PPh<sub>3</sub>)<sub>2</sub>SCH<sub>2</sub>CHCH<sub>2</sub> To Give the Trimer (CpRu)<sub>3</sub>(μ<sub>3</sub>-S)<sub>2</sub>(μ-SCH<sub>2</sub>CHCH<sub>2</sub>)
C-S Bond Cleavage in CpRu(PPh3)(2)SCH2CH=CH2 To Give the Trimer (CPRu)(3)(mu(3)-S)(2)(mu-SCH2CH=CH2) CpRu(PPh3)(2)SCH2CH=CH2 (1) loses two PPh3 ligands in refluxing toluene and undergoes C-S bond cleavage to give the sulfide-bridged trimer (CpRu)(3)(mu(3)-S)(2)(mu SCH2CH=CH2) (6).