Spectral studies of the molecular dynamics of some adducts of C-60 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), are presented. Infrared spectra of the investigated compounds show that the chemical bonding of C-60 to TTF involves the latter in vibra tions of the C-60 part, mainly in its tangential vibrations. Some typical b ands of the TTF core present distinct temperature anomalies suggesting an i nclination of C-60 group(s) in relation to the plane of TTF core, and/or ch anges in dynamics of molecular groups. (C) 2000 Elsevier Science S.A. All r ights reserved.