13C-NMR Studies on Fluctuation of Rod-Like Molecules in Solution: Molecular Dynamics in a Polar Solvent of CDCl3

To investigate the molecular dynamics of rod-like molecules in solution, 13 C-NMR measurements of a liquid crystalline material (4-(1-methylheptyloxycarbonyl)phenyl 4′-octyloxybiphenyl-4-carboxylate: MHPOBC) with a CDCl 3 solvent are carried out. When MHPOBC leaves the solution and deposits as cryst...

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Bibliographic Details
Published in:Molecular crystals and liquid crystals (Philadelphia, Pa. : 2003) Pa. : 2003), 2005-06, Vol.436 (1), p.63/[1017]-71/[1025]
Main Authors: Hiraoka, Kazuyuki, Asano, Jun-ichi, Miyayama, Koji, Nose, Takuhei, Uematsu, Yoshiko, Kanekiyo, Masahito
Format: Article
Language:English
Subjects:
liquid crystals
molecular dynamics
NMR
slowing down
spin-lattice relaxation
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Summary:To investigate the molecular dynamics of rod-like molecules in solution, 13 C-NMR measurements of a liquid crystalline material (4-(1-methylheptyloxycarbonyl)phenyl 4′-octyloxybiphenyl-4-carboxylate: MHPOBC) with a CDCl 3 solvent are carried out. When MHPOBC leaves the solution and deposits as crystals, peak broadening, which may result from a slowing down of molecular motion, occurs simultaneously. In addition, the correlation time τ c of the corresponding molecular motion is estimated to be approximately 10 −8  s by the spin-lattice relaxation time T 1 measurements.
ISSN:1542-1406
1563-5287
DOI:10.1080/15421400590955974