Premium
Infrared spectroscopy on the fullerene C 70 under pressure
Author(s) -
Thirunavukkuarasu K.,
Kuntscher C. A.,
Borondics F.,
Klupp G.,
Kamarás K.
Publication year - 2008
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.200879630
Subject(s) - fullerene , anomaly (physics) , infrared , infrared spectroscopy , spectroscopy , molecule , chemistry , range (aeronautics) , materials science , condensed matter physics , physics , optics , organic chemistry , quantum mechanics , composite material
We present pressure‐dependent infrared transmittance measurements on fullerene C 70 at room temperature in the pressure range up to 4 GPa. The vibrational modes of C 70 exhibit a nearly linear pressure dependence with a sluggish anomaly at around 0.8 GPa. This anomaly could be attributed to the change in the orientational ordering of the C 70 molecules. The sluggish character of the transition could be either due to the continuous change of the orientational order or the coexistence of two phases in the solid C 70 . (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)