Two new selenium containing anthracene derivatives and two new sulfur containing anthracene derivatives were synthesized as fluorescent chemosensors for Hg2+ and Cu2+. Compound 1 displayed a highly selective chelation enhanced fluorescence quenching (CHEQ) effect only with Cu2+, on the other hand, compounds 3 and 4 displayed highly selective chelation enhanced fluorescence (CHEF) effects only with Hg2+ among the metal ions examined.
Bibliographical noteFunding Information:
This work was supported by the SRC programme of the Korea Science and Engineering Foundation (KOSEF) (R11-2005-008-02001-0), Basic Science Research of KOSEF (R01-2006-000-10001-0) and BK21. We also thank KBSI in Taejon, Korea, for their instrumentation assistance (FAB mass spectra).