Spectral studies of the molecular dynamics of some adducts of C60 to TTF

Synthesis and some properties of two monoadducts of C 60 to TTF (EDT-TTF–C 60 dyad for the ethylenedithio- and DMDT-TTF–C 60 dyad for both methylthio-TTF substituents) and a third compound, in which TTF is linked to two C 60 (C 60 –TTF–C 60 ), are presented. Infrared spectra of the investigated compounds show that the chemical bonding of C 60 to TTF involves the latter in vibrations of the C 60 part, mainly in its tangential vibrations. Some typical bands of the TTF core present distinct temperature anomalies suggesting an inclination of C 60 group(s) in relation to the plane of TTF core, and/or changes in dynamics of molecular groups.