1. Department
of Chemistry, West Chester University of Pennsylvania, West Chester, Pennsylvania 19383, United States
2. Department
of Chemistry and Biochemistry, Swarthmore College, 500 College
Avenue, Swarthmore, Pennsylvania 19081, United States
3. Department of Chemistry & Biochemistry, Texas Woman’s University, 324 Ann Stuart Science Center, P.O. Box 425859, Denton, Texas 76204-5859, United States