The reaction of metallocene cations [M'(C5H5)2]+ with (NBu4)n [M(dmit)2] (I; M = Ni, Pd; n = 1, 2) are reported. When M' = Fe, Ni; n = 1 conducting complexes Ni(dmit)2 and Pd(dmit)2 were obtained, and when M' = Co; n = 1, 2 four salts [Co(C5H5)2]n[Ni(dmit)2] and [Co(C5H5)2]n[Pd(dmit)2] with only weak charge-transfer properties were obtained. The charge transfer states of these complexes were discussed based on ESCA, Raman spectra and cyclic voltammetric experiments Ni(dmit)2 and Pd(dmit)2 exhibit a semiconductive conductivity temperature dependence, although their elec. conductivity at room temperature is quite high. Tight binding band calculation gives the energy gap of Ni(dmit)2 0.112 ev which is in accord with the measured activation energy.

Key words: MERCAPTO GROUP, ELECTRICAL CONDUCTIVITY, COBALT COMPLEX, NICKEL COMPLEX, DIFFUSION, PALLADIUM COMPLEX, CHARACTERIZATION, CHARGE TRANSFER, SEMICONDUCTOR