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  Home > JCE Print > Journal of Chemical Education > Issues > 1996  > June  >
Laboratory Experiments
The Nitrogen-Laser Excited Luminescence of Pyrene: A Student Laboratory Study of Excimer Dynamics
John S. Muenter
University of Rochester, Rochester, NY 14627

John L. Deutsch
State University of New York, Geneseo, NY 14454

Cover
June 1996
Vol. 73 No. 6
p. 580
Abstract
An Undergraduate laboratory experiment that uses a nitrogen laser to produce the first excited singlet state of pyrene is described. The resulting luminescence is studied as a function of wavelength, time, and pyrene concentration to observe the dynamics of both the excited pyrene monomer and the pyrene excimer. The initial rise and subsequent decay of the excimer is directly observed. Data is analyzed in terms of coupled rate equations, and students obtain four different rate constants in interactive calculations. The apparatus is relatively easy to set up, and introduces students to a variety of topics in photochemical kinetics and fast measurement techniques.
More Information
*  Citation
 Muenter, John S.; Deutsch, John L. J. Chem. Educ. 1996 73 580.
*  Keywords
*  History
 Created:
Last Updated:		 9/23/1999
5/22/2006
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