Studies on the Proton Magnetic Resonance Spectra in Aliphatic Systems. V. Tris (dipivalomethanato) europium Induced Shift Parameters of Aliphatic Amines and Alcohols

Abstract

The induced paramagnetic shift parameters, S values, of simple aliphatic amines and alcohols, and the α-substituted propane and β-substituted ethanol series were measured at a mole ratio of Eu (DPM)₃/ligand in CDCl₃ of below 0.10. The S value is a measure of the equilibrium between the shift reagent and ligand, for which the steric and electronic effects are responsible, and is expressed by the equation, S=A. e-BΔE where ΔE=ΔE_elect+ΔE_steric