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Proceedings Paper

Spectroscopy of jet-cooled constrained tryptophan derivatives
Author(s): Chin Khuan Teh; Alireza Gharavi; Mark Sulkes
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Paper Abstract

We have studied tryptophan derivatives in which rotations about the Cα-Cβ and Cβ-Cγ bonds are restricted by incorporating the a-amino group into a six-membered ring. Samples were volatilized into He flows and cooled via supersonic gas expansions. Both bare molecules and molecules complexed with polar solvent adducts have been studied via laser induced fluorescence spectra and fluorescence lifetime measurements. We compare jet cooled conformer and lifetime results with some in solution. Results obtained for bare molecule and solvent are compared with analogous data for conformationally unconstrained tryptophan derivatives studied earlier. The jet-cooled lifetime data provide indications of the presence of the 1La state.

Paper Details

Date Published: 1 May 1990
PDF: 10 pages
Proc. SPIE 1204, Time-Resolved Laser Spectroscopy in Biochemistry II, (1 May 1990); doi: 10.1117/12.17739
Show Author Affiliations
Chin Khuan Teh, Tulane Univ. (United States)
Alireza Gharavi, Tulane Univ. (United States)
Mark Sulkes, Tulane Univ. (United States)

Published in SPIE Proceedings Vol. 1204:
Time-Resolved Laser Spectroscopy in Biochemistry II
Joseph R. Lakowicz, Editor(s)

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