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Calculations in Spectroscopy || Estimation of lambda max || Woodward-Fieser rules

Can we calculate absorption maximum of a cyclic conjugated diene in spectroscopy? Yes, of course it can be done with the help of few empirical rules given by Woodward-Fieser. Cyclic conjugated dienes can exist as homoannular or heteroannular dienes where the former shows more bathochromic shift than the later. But the molar absorptivity is more observed with heteroannular dienes. #calculations #spectroscopy #lambdamax