Abstract
| - We examine a series of closely related, relatively inert, cyclicaliphatic solutescyclohexane, methylcyclohexane, 1,1-dimethylcyclohexane,1,4-trans-dimethylcyclohexane,1,4-cis-dimethylcyclohexane, trans-decalin,andcis-decalinin a nematic solvent and demonstrate thattheir orientational ordering can be accurately describedinterms of purely hard-body interactions with the solvent molecules.These interactions are treated explicitly in thecontext of a statistical mechanical approximation wherein theorientational correlations among the solvent moleculesare not taken into account directly. We test the theory bypredicting the observed order parameters of the aliphaticsolutes as determined with deuterium nuclear magnetic resonance.The utility and limitations of a description ofsolute ordering derived exclusively from hard-body interactions isdiscussed.
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