화학공학소재연구정보센터
Journal of Physical Chemistry A, Vol.112, No.5, 790-793, 2008
Resonance hyper-Raman scattering of fullerene C-60 microcrystals
The hyper-Raman spectrum of buckminsterfullerene C-60 was observed at room temperature. The spectrum clearly showed infrared-active modes with t(1u) symmetry and the silent modes with t(2u), g(u) and h(u) as a result of electronic resonances via the Herzberg-Teller mechanism. Moreover, Raman-active modes with a(g) and h(g) were also detected, although these were hyper-Raman-forbidden in the electric dipole approximation, suggesting a contribution of higher-order nonlinear processes such as magnetic dipole transitions. These results suggest that hyper-Raman spectroscopy and microscopy are indeed widely applicable in the field of molecular science.