Abstract: | 15N chemical shifts of the Z and E isomers of twenty-two ketoximes and fourteen aldoximes have been determined at the natural-abundance level of 15N, using Fourier transform methods. The influences of π delocalization, methyl substituents and solute concentration on the oxime nitrogen shielding have been determined. The 15N shifts for oximes of several cycloalkanones have been measured and the influence of ring size on the chemical shifts is discussed. |