Title of article
A highly selective turn-on fluorescent chemosensor for copper(II) ion
Author/Authors
Shu-Pao Wu، نويسنده , , Tzu-Hao Wang، نويسنده , , Shirong Liu ، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2010
Pages
4
From page
9655
To page
9658
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 5.55×103 M−1. The maximum fluorescence enhancement caused by Cu2+ binding in chemosensor 1 was observed over the pH range 5–7.5.
Keywords
Fluorescent chemosensor , Cu(II) , Pyrene , Diaminomaleonitrile
Journal title
Tetrahedron
Serial Year
2010
Journal title
Tetrahedron
Record number
1102749
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