Effective shape and dynamics of chlorophyll a in a nematic liquid crystal

A. Arcioni, M.A.M.J. van Zandvoort, P. Bartolini, R. Torre, R. Tarroni, R. Righini, C. Zannoni

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The ordering matrix and the three rotational diffusion tensor components of chlorophyll a dissolved in the nematic liquid crystal ZLI-1167 have been determined at various temperatures employing a time-dependent fluorescence depolarization technique. The axis normal to the porphyrin ring is aligned on average perpendicular to the director and exhibits the slowest tumbling with respect to the director. The phytyl chain tends to be aligned with the director, and its overall spinning is the fastest.
Original languageEnglish
Pages (from-to)1624-1631
Number of pages8
JournalJournal of physics. B, atomic, molecular and optical physics
Volume102
Issue number9
DOIs
Publication statusPublished - 1998

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