Mid infrared vibrational circular dichroism in (S-(-)-epoxypropane

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Abstract
The circular dichroism intensities associated with the vibrational transitions (VCD) of (S)-(-)-epoxypropane are calculated using the bond moment model. The force constants, required for obtaining the normal coordinate descriptions, and the charge flux parameters are first determined for ethylene oxide from its vibrational spectral data. The resulting quantities are then used for VCD calculations on epoxypropane. The signs of circular dichroism bands predicted by the calculations are found to be in very good agreement with those observed experimentally.