Nitromethane is examined as a selective fluorescence quenching agent for "alternant" alkyl-substituted polycyclic aromatic hydrocarbons (PAHs). Fluorescence emission behavior is reported for 11H-benz[bc]aceanthrylene, 4H-cyclopenta[def]phenanthrene, 4H-cyclopenta[def]chrysene,
13H-dibenzo[a,g]fluorene, 13H-dibenzo[a,i]fluorene, 4H-benzo[b]cyclopenta[mno]chrysene, 4H-cyclopenta[pqr]picene, 7H-dibenzo[c,g]fluorene, 9H-benz[6,7]indeno[1,2l]phenanthrene, 4H-benzo[b]cyclopenta[jkl]triphenylene, 13H-dibenz[bc,k]aceanthrylene,
13H-dibenz[bc,l]aceanthrylene, and 4H-benzo[def]cyclopenta[mno]chrysene dissolved in organic solvents of varying polarity and in acetonitrile or aqueous-acetonitrile solvent mixtures at various nitromethane concentrations. Results of these measurements show that nitromethane
quenches fluorescence emission of the thirteen solutes studied, which is in complete agreement with what would be expected on the basis of the fact that all solutes are "alternant" polycyclic aromatic hydrocarbons.
Department of Chemistry, University of North Texas, Denton, Texas 76203-5068 2:
Ben May Institute, University of Chicago, Chicago, Illinois 60637
Publication date: July 1, 1992
More about this publication?
The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)