INFRARED AND VISIBLE SPECTRA OF THE COMPLEXES OF FULLERENE-70 AND ITSSALT

Electronic and vibrational spectroscopies were used to investigate the electron processes in neutral C-70 fullerene and its complexes with c rown-shaped sulfur and 9,9'-bis-trans-(telluraxanthenyl) donors; spect ral properties of the salt [(C6H5)(4)P](2)C70Br are discussed also. It is concluded that the complexes are weak, molecular complexes of the van der Waals type. The activation of silent modes of C-70 as well as distinct changes of the donor IR spectra have been discovered in the [ (C6H5)(4)P](2)C70Br salt. (C) 1998 Elsevier Science S.A. All rights re served.