1. Department of Chemistry, University of West Florida, 11000 University Parkway, Pensacola, Florida 32514, United States, Department of Chemistry and Biochemistry, University of Southern Mississippi, 118 College Drive, Hattiesburg, Mississippi 39406, United States, Department of Chemistry, University of Nevada, Reno, Reno, Nevada 89557, United States, and School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton BN2 4GJ, U.K.