Anthracene derivatives bearing sulfur atoms or selenium atoms as fluorescent chemosensors for Cu2+ and Hg2+ : different selectivity induced from ligand immobilization onto anthracene

摘要

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. (c) 2006 Elsevier Ltd. All rights reserved.