ELECTRONIC-SPECTRA AND ELECTRON-STRUCTURE OF FULLERENE COMPLEX (ETA(2)-C-60)FE(CO)(4)

The electronic spectrum of the C60Fe(CO)(4) complex was studied in a t oluene solution. The more intense absorption of C60Fe(CO)4 in the visi ble region, relative to the free C-60, can be attributed to tile effec t of lower symmetry of tile C-60 fullerene cage in C60Fe(CO)(4) and, t hus, relaxation of selection rules for forbidden internal electronic t ransitions of C-60. No bands of the charge transfer from 3d(Fe) to C-6 0 orbitals were observed in the visible region of the complex spectrum . Assignment of the bands was confirmed by semiempirical Calculations of the electronic spectrum.