Pyrene-armed calix[4]azacrowns as new fluorescent ionophores: "molecular taekowndo" process via fluorescence change.
A series of new calixarene-based fluoroionophores were synthesized. With our new calixarene derivative bearing a crown ether and an azacrown ether as two binding sites, the metal ion was found to selectively choose its better binding pocket between these two ligands. Interesting "molecular taekowndo" processes between Ag(+)-K(+), Cu(2+)-K(+), and Ag(+)-Cs(+) pairs were easily monitored via fluorescence change.
Kim
Jong Seung
JS
Department of Chemistry, Konyang University, Nonsan 320-711, Korea. jongskim@konyang.ac.kr
Shon
Ok Jae
OJ
Rim
Jeong Ah
JA
Kim
Sook Kyung
SK
Yoon
Juyoung
J