PULSED LASER HEATING AND SPECTROSCOPIC STUDIES OF ORGANIC AMORPHOUS/GLASSY SYSTEMS 1. EXPERIMENTS WITH ANTHRACENE
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Date
1990
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Ohio State University
Abstract
Organic amorphous/glassy solids are characterized by structural disorder and a range of activation energy barriers. In our laboratory, we are investigating these non-equilibrium systems using pulsed laser heating, cryogenic, and optical spectroscopic techniques. We introduce this subject here by way of experiments with amorphous/glassy anthracene. We discuss three important components of our experiments: (1) preparation of amorphous/glassy anthracene at 15 K, (2) transformations activated by heat generated by an infrared laser pulse, and (3) use of laser induced fluorescence as a spectroscopic probe. Experimental results are discussed which help formulate a better understanding of solid anthracene's reaction profile.
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Author Institution: Department of Chemistry, Loyola University of Chicago