Abstract
Thin-layer and high-performance liquid chromatography methods have been employed to study the interaction of diphenylpolyenes with the surfaces of SiO2 (silica gel) and SiO2-C18 in organic and aqueous media. Electronic absorption spectra of diphenylpolyenes have been measured in different solvents, and the constants of their chromatographic retention on the solid phase surface have been determined. The interaction of diphenylpolyenes with SiO2 surface in a binary organic solvent and with SiO2-C18 surface in a water-organic solvent has been shown to intensify in the series cis-1,2-diphenylethylene < trans-1,2-diphenylethylene < trans-1,4-diphenyl-1,3-butadiene < trans-1,6-diphenyl-1,3,5-hexatriene. The retention constants of diphenylpolyenes have been revealed to depend on the geometry and configuration of their molecules, the length of an olefin fragment, and the nature and polarity of an eluent.
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