Journal
CHEMICAL COMMUNICATIONS
Volume -, Issue 9, Pages 1094-1095Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b403448a
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The sensory capabilities of two novel di(2-picolyl)amine (DPA)substituted coumarins are described and it is shown that the variation of the point of attachment of the DPA group to the coumarin framework controls their sensing behavior: the 4-substituted system is a CHEF-type sensor that shows a significant increase in fluorescence intensity upon Zn2+ binding, whereas the 3-substituted system is a ratiometric sensor.
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