2012•Journal of Functional BiomaterialsOpen access

Highly selective fluorescence detection of Cu~(2+) by the derivative of indolizine

Bingxiang Wang

Abstract

The compound 5 of 2-nitrobenzaldehyde-indolizine was synthesized.Its structure was characterized by using IR,UV and 1H NMR.The fluorescent and the influence of different transitional metal ions such as Co2+,Ca2+,Zn2+,Cu2+,K+,Ni2+,Mn2+,Pb2+ on thiscompound were studied systematically.The results showed this compound exhibited a highly selective fluorescence quenching effect by Cu2+ ions,while other metal ions almost no quenching happened.The UV absorption spectra increased with the addition of Cu2+ into the solution of 2-nitrobenzaldehyde-indolizine suggesting that chemical reaction occurred between the Cu2+ and this compound.This compound is promising to be the fluorescent probe for the Cu2+.

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Key concepts: Indolizine, Fluorescence, Metal ions in aqueous solution, Quenching (fluorescence), Materials science, Photochemistry, Derivative (finance), Ion