Title of article
Ratiometric/‘On–Off’ sensing of Pb2+ ion using pyrene-appended calix[4]arenes
Author/Authors
Kumar، نويسنده , , Manoj and Babu، نويسنده , , J. Nagendra and Bhalla، نويسنده , , Vandana and Kumar، نويسنده , , Rajesh، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
9
From page
183
To page
191
Abstract
New fluorescent sensors 6, 7 and 9 based on calix[4]arenes have been synthesized and examined for their binding abilities towards different metal ions (Li+, Na+, K+, Pb2+, Zn2+, Hg2+ and Ag+) by UV and fluorescence spectroscopy. Two of these receptors (6 and 7) show ratiometric sensing while the third receptor (9) shows ‘On–Off’ signaling of Pb2+ ion among the various metal ions tested. The stoichiometry of the complexation was found to be 1:1 as established by Jobʹs plot.
Keywords
Pb2+ ion selective , Imine , Fluorogenic , Pyrene , On–off
Journal title
Sensors and Actuators B: Chemical
Serial Year
2010
Journal title
Sensors and Actuators B: Chemical
Record number
1437718
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