A tripodal naphthylacetamide derivative (compound 1) used as a new fluorescence chemical sensor for detection of transition metal ions has been synthesized and studied in this work. An enhancement of fluorescence intensity of this compound in solution can be observed clearly after introduction of the metal ions. Comparing fluorescence and absorption spectra of all studied metal ions, one would draw the conclusion that upon using the fluorescence spectra for assays, the mechanism of the fluorescence enhancement or quenching should be taken into consideration, which is important to the evaluation of the complexation of ligand and metal ions.

Key words: NAPHTHALENEAMINE P, ACETAMIDE P, CHELATES, SENSITIVE MATERIALS, TRANSITION METAL COMPLEX