Studies on the Proton Magnetic Resonance Spectra in Aliphatic Systems. VI. Tris (dipivalomethanato) europium Induced Paramagnetic Shifts of Aliphatic Amines and Alcohols : Steric, Electronic and Solvent Effects

Abstract

Tris (dipivalomethanato) europium induced paramagnetic shifts of aliphatic amines and alcohols were examined with respect to sterio, electronic and solvent effects. The paramagnetic shifts are an exponential function of the three effects, and can be expressed by the following type of equation : S=A·e^-B×k where k=parameters of the steric, electronic and solvent effects The intercepts A, referred to the unperturbed state, decrease regulary from α to γ, whereas the slopes B, referred to the perturbed state, decrease in a zig-zag manner.