LIQUID-CRYSTALLINE SOLVENTS AS MECHANISTIC PROBES. 10. DYNAMICS OF INTRAMOLECULAR QUENCHING OF PYRENYL FLUORESCENCE IN THE LIQUID-CRYSTALLINE AND ISOTROPIC PHASES OF A CHOLESTERIC SOLVENT.

V. C. Anderson, B. B. Craig, R. G. Weiss

Research output: Contribution to journalConference article

10 Scopus citations

Abstract

The effect of cholesteric order in a 59. 5/15. 6/24. 9 (w/w/w) mixture of cholesteryl oleate/cholesteryl nonanoate/cholesteryl chloride (CM) on the intramolecular fluorescence quenching of 1,3-bis(1-pyrenyl) propane (P3P) has been explored. A comparison with fluorescence quenching of N,N-dimethyl-4- left bracket 3-(1-pyrenyl)propyl right bracket aniline (P3D) in CM is made. From the Arrhenius activation parameters for quenching in the cholesteric and isotropic phases, it is concluded that the motions which take the ground state conformers of P3P to their quenching transition state are nearly impervious to macroscopic CM mesophase order.

Original languageEnglish (US)
Pages (from-to)351-363
Number of pages13
JournalMolecular crystals and liquid crystals
Volume97
Issue number1-4
StatePublished - 1982
EventProc of the Int Liq Cryst Conf, 9th - Bangalore, India
Duration: Dec 6 1982Dec 10 1982

ASJC Scopus subject areas

  • Engineering(all)

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