Gas phase 1H-n.m.r. study of the hindered internal rotation in dimethylacetamide
Abstract
The 1H-n.m.r. spectra of dimethylacetamide in the gas phase give an activation energy of ΔF298≠= 15·64 ± 0·1 kcal mol–1 for the rotation about the amide C–N bond, significantly smaller than that found in solution.