1. Department
of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
2. Mari Signum, Ltd., 3205 Tower
Oaks Boulevard, Rockville, Maryland 20852, United States
3. Department
of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
4. 525 Solutions, Inc., 720
Second Street, P.O. Box 2206, Tuscaloosa, Alabama 35403, United States