Organic magnetic resonance

Effect of molecular motion and solvent interactions on nitrogen??15 relaxation in anilines

JB Lambert, D Stec

Index: Lambert, Joseph B.; Daniel Stec, III Organic Magnetic Resonance, 1984 , vol. 22, # 5 p. 301 - 307

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Citation Number: 9

Abstract

Abstract Dipolar relaxation of 15 N in anilines and anilinium ions is influenced by overall motion of the molecule, by rotation about the aryl–-nitrogen bond, by inversion of the aniline nitrogen and by interactions of the NH 2 or NH 3+ group with the solvent. These factors are assessed by comparison of the 13 C and 15 N dipolar relaxation times as a function of para- substitution on the aryl ring. In the anilines (solvent CDCl 3), electron withdrawal brings ...