1. Department of Chemistry, Georgia Southern University , Savannah , GA, 31419 , USA
2. Department of Chemistry and Biochemistry, Florida State University , Tallahassee , FL, 32306 , USA
3. Department of Chemistry, University of Saint Joseph , West Hartford , CT, 06117 , USA
4. Department of Chemistry, Augsburg University , Minneapolis , MN, 55454 , USA
5. Department of Chemistry and Biochemistry, Depaul University , Chicago , IL, 60614 , USA