THE INFRARED ABSORPTION SPECTRA OF DEUTERATED ESTERS

The infrared absorption spectrum of lnethyl laurate in carbon tetrachloride and carbon disulphide solutions has been compared with the spectra of seven derivatives deuterated in the w-methyl group, the a-methylene groups, the carbomethoxy group, and in binary and ternary combinations of these positions. The spectra of n-dodecanes deuterated in the terminal lnethyl groups and of methyl laurates chlorinated in the w-methyl and a-methylene groups have also been measured. From an analysis of these spectra, all the bands and inflections between 3100 and 700 cm-1 in the spectrunx of methyl laurate can be assigned to localized group vibrations. The spectra of some related acid chlorides, alcohols, and brolnides are also briefly noted.