Temperature dependence of phenanthrene cavity radius in apolar solvents and in water

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dc.creatorAr'ev, I. A.
dc.creatorLebovka, N. I.
dc.date2003-06-14
dc.date.accessioned2026-07-07T02:51:50Z
dc.date.available2026-07-07T02:51:50Z
dc.descriptionPhenanthrene, a three ring aromatic hydrocarbon, is used as a model substance for study of intermolecular interactions in dilute solutions of organic solvents and water by spectroscopic method. Temperature dependencies of shift of the S$_2\leftarrow$S$_0$ spectrum of phenanthrene dissolved in apolar solvents and in liquid water are studied in this work. The spectroscopic data are used for analysis of the cavity radius $R$ for phenanthrene molecule in solvents. It is shown that the value of $R$ increases with temperature in organic solvents. In contrast, for water solution, the value of $R$ initially grows with temperature increase (in the interval of 273.3-296 K), but becomes constant at higher temperatures. The changes of water structure in the neighbourhood of a phenanthrene molecule and probable hypothesis about causes of $R$ value constancy in high-temperature region are discussed. Conclusion about strengthening of the water structure in an aqueous cage with phenanthrene molecule inside is done.
dc.description6 pages, 3 figures, RevTex4
dc.identifierhttps://arxiv.org/abs/cond-mat/0306385
dc.identifierhttp://arxiv.org/abs/cond-mat/0306385
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21617
dc.subjectSoft Condensed Matter
dc.titleTemperature dependence of phenanthrene cavity radius in apolar solvents and in water
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