1. Department of Chemistry, The City College of New York, 160 Convent Avenue, New
York, New York 10038, United States
2. Code 6127, Chemistry Division, Naval Research Laboratory, Washington, DC 20375, United
States
3. Edgewood Chemical Biological Center, 5183 Blackhawk Road, APG, Maryland
21010, United States
4. Guild Associates, Inc., 5750 Shier Rings Road, Dublin, Ohio 43016, United
States