Heterometallic cluster [CpMn(CO)2]2S 2Ni(Dppe) containing the binuclear manganese disulfide complex as a ligand

A reaction of the disulfide complex [CpMn(CO)2]2S2 with the Ni(0) diphosphine acetylene complex, (Dppe)Ni(C2Ph2) (I), yielded the heterometallic complex [CpMn(CO)2]2S2Ni(Dppe) (II). An X-ray diffraction study revealed lateral coordination of the disulfide group to the Ni atom in complex II, which results in lengthening of both the S-S and Mn-S bonds against those in the starting complex. However, the Mn-S and Ni-S bonds are still much shorter than the sums of the covalent radii of the corresponding atoms.