Crystallography Research Today is a free monthly online journal that collates and summarizes the latest research about Crystallography, including details on x-ray crystals, techniques, analyses, structures.

Structure elucidation of laser dye coumarin-540A by joint application of X-ray diffraction, X-ray fluorescence, prompt fluorescence, UV and visible spectroscopy.

Keskin SS, Aslan N, Bayrakçeken F

Department of Biomedical Engineering, Yeditepe University, 34755 Istanbul, Turkey.

X-ray, ultraviolet, and visible light induced photophysical changes of coumarin-540A in ethanol have been studied by the joint applications of X-ray, ultraviolet, and visible spectroscopy. Some impurities were found by X-ray fluorescence measurements. During the high power optical pumping, coumarin showed photochemical changes. Photoproduct emission spectra characteristics showed that photoproduct molecules can also be used as a laser dye at a different emission frequency in the ultraviolet region.

Published 29 May 2007 in Spectrochim Acta A Mol Biomol Spectrosc, 67(3): 762-6.
Full-text of this article is available online (may require subscription).

© 2005-2008 Crystallography Research Today. All Rights Reserved.