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Proceedings Paper

Spectroscopy Of Tryptophan Derivatives In Supersonic Expansions: Addition Of Solvent Molecules
Author(s): Mark Sulkes; Jeffrey Sipior
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Paper Abstract

One or more solvent molecules have been added to selected derivatives of the amino acid tryptophan. The preparations are carried out using supersonic gas expansion techniques and the samples are probed via laser induced fluorescence spectra and fluorescence lifetime measurements. In tryptophan derivatives that have a polar side chain at the 3-indole position, the solvent complexes formed are different from those previously observed in indoles. Now it is the case that solvent adducts bind overwhelmingly at the polar sites of the 3-indole side chain and not directly on the indole. For at least one derivative, tryptamine, addition of a single water or alcohol molecule results in formation of one solvent-stabilized conformation independent of the starting conformation of the bare derivative molecule.

Paper Details

Date Published: 27 April 1988
PDF: 5 pages
Proc. SPIE 0910, Fluorescence Detection II, (27 April 1988); doi: 10.1117/12.945465
Show Author Affiliations
Mark Sulkes, Tulane University (United States)
Jeffrey Sipior, Tulane University (United States)

Published in SPIE Proceedings Vol. 0910:
Fluorescence Detection II
E. Roland Menzel, Editor(s)

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