Two new binaphthyl-azacrown-anthracene fluorophores were synthesized. These new fluorescent receptors exhibited large fluorescent changes with aqueous Hg2+, Cu2+ and Zn2+. Interestingly, the fluorescent emissions from the binaphthyl and anthracene groups using different excitation wavelengths showed different patterns in the presence of metal ions. The chiral recognitions of these receptors with chiral ammonium guests were also examined.
Bibliographical noteFunding Information:
This work was supported by a Grant from KOSEF (NRL program: M1-0318-00-0005), the Basic Science Research of KOSEF (R01-2006-000-10001-0) and BK21.