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

Synthesis and some properties of two monoadducts of C60 to TTF (EDT-TTF–C60 dyad for the ethylenedithio- and DMDT-TTF–C60 dyad for both methylthio-TTF substituents) and a third compound, in which TTF is linked to two C60 (C60–TTF–C60), are presented. Infrared spectra of the investigated compounds show that the chemical bonding of C60 to TTF involves the latter in vibrations of the C60 part, mainly in its tangential vibrations. Some typical bands of the TTF core present distinct temperature anomalies suggesting an inclination of C60 group(s) in relation to the plane of TTF core, and/or changes in dynamics of molecular groups.