Synthesis and Spectral Properties of a Highly Selective D-π-A Based Dye Chemosensor

Abstract

A novel chromogenic and fluorogenic dye chemosensor was computationally designed using MO theory calculation and synthesized based on donor-π-acceptor unit. This prepared dye sensor showed the selective Ni²⁺ metal ion sensing effects in optical properties with UV-vis absorption and fluorescence emission. Dye sensor displayed evident absorption changes with Ni²⁺ ion and highly selective fluorescence quenching effect was determined. But it showed no significant changes upon the addition of other metal ions such as Cd²⁺, Na²⁺, Mg²⁺, Pb²⁺, Fe²⁺, Fe³⁺, Ca²⁺, Cu²⁺, Hg²⁺ and Zn²⁺

Keywords:

• Absorption
• D-π-A
• dye sensor
• fluorescence
• metal cation
• spectral properties

Acknowledgment

This work was supported by the Basic Science Research Program through the National Research Foundation (NRF) grant funded by the Korea government (MEST) (No. 2010-0001885). This research was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea (2010).