title: Vibrational spectra of C60.C8H8 and C70.C8H8 in the rotor-stator and polymer phases.
abstract: C(60).C(8)H(8) and C(70).C(8)H(8) are prototypes of rotor-stator cocrystals. We present infrared and Raman spectra of these materials and show how the rotor-stator nature is reflected in their vibrational properties. We measured the vibrational spectra of the polymer phases poly(C(60)C(8)H(8)) and poly(C(70)C(8)H(8)) resulting from a solid-state reaction occurring on heating. On the basis of the spectra, we propose a connection pattern for the fullerene in poly(C(60)C(8)H(8)), where the symmetry of the C(60) molecule is D(2h). On illuminating the C(60).C(8)H(8) cocrystal with green or blue light, a photochemical reaction was observed leading to a product similar to that of the thermal polymerization.
authors.affiliation: Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, PO Box 49, H-1525 Budapest, Hungary. klupp@szfki.hu
authors.forename: G
authors.initials: G
authors.lastname: Klupp
authors.forename: F
authors.initials: F
authors.lastname: Borondics
authors.forename: E
authors.initials: E
authors.lastname: Kováts
authors.forename: A
authors.initials: A
authors.lastname: Pekker
authors.forename: G
authors.initials: G
authors.lastname: Bényei
authors.forename: I
authors.initials: I
authors.lastname: Jalsovszky
authors.forename: R
authors.initials: R
authors.lastname: Hackl
authors.forename: S
authors.initials: S
authors.lastname: Pekker
authors.forename: K
authors.initials: K
authors.lastname: Kamarás