VIBRATIONAL ANALYSIS OF SOME HYDROXYALKYL SUBSTITUTED OXAMIDES

The vibrational spectra of RHNCOCONH2 and RHNCOCONHR (R = (CH2)xOH, x = 2,3,4,5) and the deuterated derivatives am reported. The spectra pro vide direct information on the hydrogen bonding through the position a nd profile of several typical amide fundamentals, through frequency sh ifts at different temperatures and through the relative intensities of some Raman bands. All these features indicate amide-amide hydrogen bo nding comparable with the hydrogen bond pattern in N-alkyloxamides and N,N'-dialkyloxamides. The hydrogen bonding between the hydroxyl group s is dependent on the length of the alkyl substituent. This work must also be regarded as a contribution in the characterisation of the amid e and alcohol functional groups.