Alignment of solutions

As a consequence of the alignment of solute molecules in liquid-crystalline solvents, the ratio of products formed in competitive reaction pathways can be different from that observed in isotropic liquids. This is illustrated by the Norrish type II photolysis of alkyl phenyl ketones with varying alkyl chain length in the isotropic, smectic, and... 

The induced alignment of solutes oriented in liquid crystalline solution is very sensitive to small variations in temperature. Sy values are temperature sensitive and since Dy is proportional to Sy, care must be exercised if spectra... 

Langkilde, F.W, M. Glsin, E.W. Thulstrup, and J. Michl. 1983. Alignment of solutes in stretched polyethylene. Determination of the five second and fourth moments of the orientation distribution of 2-fluoropyrene from polarized fluorescence. Additional evidence for the twisting of weak transition moments by the solvent environment. J. Phys. Chem. 87 2901-2911. 

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