5149
J . Am. Chem. SOC.1980, 102, 5149-5150
Anisotropic Reorientation of Nicotine in Solution. A Carbon- 13 Spin-Lattice Relaxation Time Study of Molecular Conformation T. Phil Pitner,* Jerry F. Whidby,* and William B. Edwards, III* Contribution from the Philip Morris U.S.A. Research Center, P.O. Box 26583, Richmond, Virginia 23261. Received September 10, 1979
Abstract: The I3CNMR spin-lattice relaxation times of nicotine (1) are analyzed in terms of anisotropic rotational diffusion constants. The data agree best with an inter-ring orientation in which the H(2’)
