PAb01 液晶NMRによる液晶分子のコアの構造の研究

抄録

^1H-NMR spectra of azobenzene (Ph-N=N-Ph) and tolan (Ph-C≡C-Ph) dissolved in a nematic solvent ZLI 1132 were measured to investigate their molecular structures and orientational behavior. The resulting molecular structures agree with those obtained in the gas phase. The interaction parameters of azobenzene are close to those of tolan, indicating no significant differences between the order parameters of azobenzene and tolan. It is known that the contributions of the Ph-N=N-Ph and Ph-C≡C-Ph to the transition temperature T_<NI> of mesogen R-Ph-X-Ph-R' are similar to each other. This is consistent with the result obtained for the orientational behavior of Ph-N=N-Ph and Ph-C≡C-Ph.