Premium
FT‐Raman characterization of the antipodal bis‐adduct of C 60 and anthracene
Author(s) -
Pfeiffer Rudolf,
Kramberger Christian,
Peterlik Herwig,
Kuzmany Hans,
Kräutler Bernhard,
MelleFranco Manuel,
Zerbetto Francesco
Publication year - 2009
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200982302
Subject(s) - adduct , anthracene , raman spectroscopy , chemistry , molecular vibration , crystallography , analytical chemistry (journal) , photochemistry , organic chemistry , physics , optics
We studied the mono‐ and the antipodal bis‐adduct of C 60 and anthracene with FT‐Raman spectroscopy. Due to the reduced symmetry, the adducts have a much larger number of Raman‐active modes than C 60 with its icosahedral symmetry. Especially interesting is the fact that in the region of the C 60 pentagonal pinch mode (PPM) the adducts show two strong peaks, of which the higher one is almost at the same frequency as the C 60 mode and the lower one is downshifted by 5.4 and 10.5 cm −1 for the mono‐ and bis‐adduct, respectively. The higher frequency peak could be explained by a degradation of the adducts into C 60 . However, calculated Raman spectra of the pure adducts also show two strong peaks in the PPM region, of which the higher frequency one is not PPM related. Finally, the C–H vibrations are the only clear evidence for anthracene in the adduct spectra.