Complexes {Cp*(Dppe)FeC≡CC2R[Co2L2(CO)4]} n+ (R = H, Si(CH3)3; n = 0, 1, 2; L2 = (CO)2, Dppm): Synthesis, redox properties, and electronic characteristics

New neutral and cationic complexes containing the mononuclear organoiron Cp*(Dppe)Fe and cluster Co2C2 fragments have been synthesized. It was shown that the redox reactions substantially extend possibilities for the synthesis of the cationic complexes, and the transition metal derivatives with the unoccupied electron shell represent an interesting and promising direction of studies. It has been confirmed by spectroscopy in the near-IR range a substantial intramolecular electron interaction between the cobalt and iron atoms in the cationic complexes. The obtained estimates for the interaction energy suggest that these compounds can be perspective as molecular devices.