High resolution carbon-13 spin–lattice relaxation study of the nematogen p-methoxybenzylidene–p-?-butylaniline
- 1 February 1978
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 68 (3) , 940-944
- https://doi.org/10.1063/1.435831
Abstract
The 13C relaxation measurements were obtained for all resolved carbon resonances in the nematic and isotropic phases of MBBA. Also obtained were the NOE measurements in the isotropic phase. The study indicates that a flexibility gradient occurs along the n-butyl chain and that the 13C relaxation is governed by the anisotropic rotational diffusion of the entire molecule.Keywords
This publication has 11 references indexed in Scilit:
- Deuteron line shape study of molecular order and conformation in the nematogens PAA and MBBAThe Journal of Chemical Physics, 1977
- 13C Spin-Lattice Relaxation Times in Liquid Crystalline p,p′-AzoxyanisoleBulletin of the Chemical Society of Japan, 1977
- Wide line nuclear magnetic resonance studies of the solid phases of MBBAChemical Physics Letters, 1977
- A proton and deuteron spin–lattice relaxation study of the partially deuterated nematogens PAA and MBBAThe Journal of Chemical Physics, 1977
- Molecular Ordering and Even-Odd Effect in a Homologous Series of Nematic Liquid CrystalsPhysical Review Letters, 1974
- Study of the isotropic-nematic-solid transitions in a liquid crystal by carbon-13—proton double resonancePhysical Review A, 1974
- Effect of phase transitions on carbon-13 nuclear magnetic resonance spectra in p-azoxydianisole, a nematic liquid crystalJournal of the American Chemical Society, 1974
- Temperature-dependent study of carbon-13 spin-lattice relaxation times in para -azoxyanisole-A nematic liquid crystalThe Journal of Chemical Physics, 1974
- Calculation of dipolar nuclear magnetic relaxation times in molecules with multiple internal rotations. II. Theoretical results for anisotropic over-all motion of the molecule, and comparison with 13C relaxation times in n -alkanes and n -alkyl bromidesThe Journal of Chemical Physics, 1974
- Effects of Anisotropic Molecular Rotational Diffusion on Nuclear Magnetic Relaxation in LiquidsThe Journal of Chemical Physics, 1968