Journal
SCIENCE CHINA-CHEMISTRY
Volume 57, Issue 2, Pages 289-295Publisher
SCIENCE PRESS
DOI: 10.1007/s11426-013-4999-1
Keywords
bifunctional probe; fluorescence; Cu2+; Hg2+; molecular logic gate
Categories
Funding
- National Natural Science Foundation of China [21001058]
- National Science Foundation for Fostering Talents in Basic Research of the NSFC [J1103307]
- Fundamental Research Funds for the Central Universities [lzujbky-2013-ct02]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT1138]
- 111 Project of Ministry of Education
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A bifunctional probe 1 with iminocoumarin scaffold demonstrated different responses for Cu2 and Hg2+. In fluorescence mode of probe 1, the intensity at 528 nm was quenched severely upon the addition of Cu2+ or Hg2+. Meanwhile, a new fluorescence band at 574 nm appeared in the case of Hg2+. In its UV-Vis absorption mode, significant hypochromic shift for Cu2+ and bath-ochromic shift for Hg2+ occurred, which are in agreement with the observation of distinct color changes. In addition, probe 1 can be used for the construction of a molecular logic gate with NOR and INHIBIT logic functions.
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