1. Department of Chemistry, Temple University, 1901 N. 13th
Street, Philadelphia, Pennsylvania 19122, United States
2. Department of Microbiology and Immunology, Temple University School of Medicine, 3500 N. Broad Street, Philadelphia, Pennsylvania 19140, United States
3. Department of Chemistry, Villanova University, 800 E. Lancaster Avenue, Villanova, Pennsylvania 19085, United States