1. Department of Chemistry; University of Connecticut; 55 North Eagleville Road Storrs CT 06269-3060 USA
2. Chemical Development; Boehringer Ingelheim Pharmaceuticals, Inc.; 900 Ridgebury Road Ridgefield CT 06877-0368 USA
3. Material and Analytical Sciences; Boehringer Ingelheim Pharmaceuticals, Inc.; 900 Ridgebury Road Ridgefield CT 06877-0368 USA