1. The Chemistry Research Laboratory, Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K.
2. Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR 999077, China
3. Chemistry Branch Department of Science and Mathematics, Suez University, Suez 43721, Egypt