Abstract
Antisymmetric resonant vibrational Raman scattering is studied using time-reversal symmetry. Under the Born-Oppenheimer approximation, for even-electron systems with the ground and the excited vibronic states belonging to real representations, the antisymmetric resonant Raman transition polarizabilities are strictly zero due to time-reversal symmetry. Only if the ground or the resonant excited vibronic states of an even-electron system belong to E representations of groups C n , C nh or S n ( n ⩾ 3), or for an odd-electron system, can the antisymmetric vibrational resonant Raman transition polarizability be nonzero. The results explain the inconsistency between the space symmetry prediction and the experimental facts of antisymmetric resonant Raman scattering.
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