| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5221071 | Tetrahedron | 2010 | 4 Pages |
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+, Hg2+, Mg2+, Mn2+, Ni2+, Pb2+, 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 5.55Ã103Â Mâ1. The maximum fluorescence enhancement caused by Cu2+ binding in chemosensor 1 was observed over the pH range 5-7.5.
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Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Shu-Pao Wu, Tzu-Hao Wang, Shi-Rong Liu,