Magnetic relaxation and molecular motions in liquid 3,5-dimethylpyridine

Authors:

• W. Suchanski,
• Marek Kempka,
• Barbara Peplińska,
• Zdzisław Pająk

Abstract

The nuclear spin-lattice relaxation times of ¹⁴N have been measured as a function of temperature for liquid 3,5-dimethylpyridine. These results together with the values of the ¹³C spin-lattice relaxation times and the factor of nuclear Overhauser enhancement for the ring C_2,6 and C₄ carbons presented previously [15], have been analyzed in terms of relative influence of molecular shape and attractive dipolar forces on anisotropy of the molecular reorientations. Principal components of the rotational diffusion tensor have been determined.