Hg2+-Selective Ratiometric and “Off−On” Chemosensor Based on the Azadiene−Pyrene Derivative
- 7 May 2010
- journal article
- research article
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 12 (11), 2566-2569
- https://doi.org/10.1021/ol1007636
Abstract
A new pyrene-based derivative bearing an azadiene group was synthesized as a ratiometric chemosensor for Hg2+ in aqueous acetonitrile solution. The “off−on” type signaling behavior of the fluoroionophore is due to the metal ion induced conformational changes from the weak pyrene monomer emissions to strong pyrene excimer emission.Keywords
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