LIQUID-CRYSTALLINE SOLVENTS AS MECHANISTIC PROBES. 12. SOLVENT ANISOTROPY EFFECTS ON THE BENDING OF HYDROCARBON CHAINS IN alpha , omega -BIS(1-PYRENYL)ALKANES.

Valerie Anderson, Richard G. Weiss

Research output: Contribution to journalArticle

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Abstract

A comparison has been made of the effects of the cholesteric and isotropic phases of a 59. 5/15. 6/24. 9 (w/w/w) mixture of cholesteryl oleate/cholesteryl nonanoate/cholesteryl chloride (CM) and of the nematic and smectic phases of trans,trans-4 prime -n-butylbicyclohexyl-4-carbonitrile (BCCN) on the dynamics of intramolecular fluorescence quenching in several alpha , omega -bis(1-pyrenyl)alkanes (PnP). It is demonstrated that whereas the quenching activation parameters are independent of chain length (n equals 3, 10, 13, 22) in the isotropic phase of CM, they vary greatly with chain length in cholesteric CM.

Original languageEnglish (US)
Pages (from-to)6628-6637
Number of pages10
JournalJournal of the American Chemical Society
Volume106
Issue number22
Publication statusPublished - Jan 1 1984
Externally publishedYes

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ASJC Scopus subject areas

  • Chemistry(all)

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