Abstract
The infrared spectra of acrylamide and deuterated acrylamide have been studied between 4000 and 450 cm −1. The Raman spectra of approximately molar solutions of acrylamide in water and deuterium oxide were obtained from 250 to 3200 cm −1 and from 400 to 3200 cm −1, respectively. The results show that the structure of acrylamide can be consistently interpreted in terms of the amide structure CH 2:CH·C(:O)·NH 2 with no evidence for the possible tautomer CH 2:CH·C(OH):NH. Simple molecular orbital calculations were made to estimate the strength of the (CN) and (CO) bonds. These results are compared with those obtained for formamide and acetamide in order to see the effect of the (CC) bond on the bonding in the rest of the molecule.
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