1. Contribution from the Department of Chemistry, 55 N. Eagleville Rd., University of Connecticut, Storrs, Connecticut 06269, Department of Pharmacology, University of Connecticut Health Center, Farmington, Connecticut 06032, Department of Chemistry, Salve Regina University, Newport, Rhode Island 02840, Oral and Pharyngeal Cancer Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland 20892, Institute of Material Science, University of Connecticut,...