Study of the disorder to order transitions of disubstituted naphthalenes

CHED 1033

Sean M. Ryland, sryland@ptloma.edu and Kenneth A. Martin, kmartin@pointloma.edu. Department of Chemistry, Point Loma Nazarene University, 3900 Lomaland Dr, San Diego, CA 92106
Di-substituted naphthalenes such as 1,4 dimethoxynaphthalene are deposited amorphously onto a liquid nitrogen cooled alumina crystal under high vaccuum. The deposited compund is then excited to produce an emission, which is monitored as the crystal undergoes a temperature programmed desorption. The emissions can provide useful information as to the crystalline structure by producing fluorescence, phosphorescence and excimer emissions.