1. Department of Applied Chemistry,
Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga 840-8502, Japan
2. Key Laboratory of Macrocyclic
and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, People’s Republic
of China
3. School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, U.K.