Difference between dipole moment and polarizability
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umm..............idk man
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dipole moment is a separation of positive and negative charges. when this separation changes during the vibrational motion of a molecule it is IR active. if there is no permanent dipole moment, there is no IR activity (e.g. N2, O2, H2).polarizability is the relative tendency of a charge distribution, like the electron cloud of a molecule, to be distorted from its normal shape by an external electric field, like the one in an electromagnetic wave. if the polarizability changes during the vibrational motion of a molecule it is Raman active.
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