Abstract
A new pyrene derivative (1) containing a diaminomaleonitrile moiety exhibits high selectivity for Cu2+ detection. Significant fluorescence enhancement was observed with chemosensor 1 in the presence of Cu2+. However, the metal ions Ag+, Ca2+, Cd2+, Co2+, Fe2+, Fe3+, Hg 2+, Mg2+, Mn2+, Ni2+, Pb 2+, and Zn2+ produced only minor changes in fluorescence values for the system. The apparent association constant (Ka) of Cu2+ binding in chemosensor 1 was found to be 5.55×10 3 M-1. The maximum fluorescence enhancement caused by Cu2+ binding in chemosensor 1 was observed over the pH range 5-7.5.
| Original language | English |
|---|---|
| Pages (from-to) | 9655-9658 |
| Number of pages | 4 |
| Journal | Tetrahedron |
| Volume | 66 |
| Issue number | 51 |
| DOIs | |
| State | Published - 18 Dec 2010 |
Keywords
- Cu(II)
- Diaminomaleonitrile
- Fluorescent chemosensor
- Pyrene
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Wu, S-P., Wang, T. H., & Liu, S. R. (2010). A highly selective turn-on fluorescent chemosensor for copper(II) ion. Tetrahedron, 66(51), 9655-9658. https://doi.org/10.1016/j.tet.2010.10.054