Polarisability
The ease with which the electron cloud of a molecule deforms in an external electric field. A vibration is Raman active only if it changes the polarisability, the Raman analogue of IR's dipole-change rule.
The ease with which the electron cloud of a molecule deforms in an external electric field. A vibration is Raman active only if it changes the polarisability, the Raman analogue of IR's dipole-change rule.
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