The smectic potential in a liquid crystal with a reentrant nematic phase: NMR of solutes
نویسندگان
چکیده
We test the application of Kobayashi–McMillan theory for the solutes ortho-, metaand para-dichlorobenzene in a binary mixture of 6OCB/8OCB in which both high temperature nematic and low temperature reentrant nematic phases exist. Proton NMR spectra of these solutes are analyzed to give two independent order parameters from which the solute smectic potential can be parametrized. The derived smectic order parameters for the solutes in this binary mixture are discussed and compared with those previously found in pure 8OCB
منابع مشابه
NMR measurement of smectic ordering and nematic–smectic-A coupling in a liquid crystal
The nuclear magnetic resonance (NMR) spectra of three substituted benzenes as solutes in the liquid crystal 8CBwere investigated. The orientational order of all solutes was obtained in the nematic and smectic-A phases. A change in temperature dependence of orientational ordering was observed at the nematic to smectic-A phase transition. We analyzed these results via Kobayashi–McMillan theory ap...
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