Relay recognition of Cu2+ and S2- in water by a simple 2-(2'-aminophenyl)benzimidazole derivatized fluorescent sensor through modulating ESIPT.

@article{Tang2014RelayRO,
  title={Relay recognition of Cu2+ and S2- in water by a simple 2-(2'-aminophenyl)benzimidazole derivatized fluorescent sensor through modulating ESIPT.},
  author={L. Tang and Xin Dai and Mingjun Cai and Jia Zhao and P. Zhou and Zhen-long Huang},
  journal={Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy},
  year={2014},
  volume={122},
  pages={
          656-60
        }
}
  • L. Tang, Xin Dai, +3 authors Zhen-long Huang
  • Published 2014
  • Chemistry, Medicine
  • Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
A new 2-(2'-aminophenyl)benzimidazole (2-APBI) derivatized fluorescent sensor (L) that behaves relay recognition of Cu(2+) and S(2-) in water solution (pH 7.4) has been developed. Sensor L displays excited-state intramolecular proton transfer (ESIPT) featured two emission bands and performs highly selective and sensitive recognition to Cu(2+) through two emissions simultaneous quenching. The on-site formed L-Cu(2+) complex exhibits excellent selectivity to S(2-) with fluorescence "off-on… Expand
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