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Abstract The secondary amines present in the three bridges of a laterally non-symmetric aza-oxa cryptand have been partially substituted with anthryl groups to generate PET sensors in the format, fluorophore—spacer—receptor.… Click to show full abstract
Abstract The secondary amines present in the three bridges of a laterally non-symmetric aza-oxa cryptand have been partially substituted with anthryl groups to generate PET sensors in the format, fluorophore—spacer—receptor. Further, electron donating/withdrawing groups have been attached to the cryptand to modulate the PET process. A host of transition, inner-transition and heavy metal ions, when used as inputs, show fluorescence enhancement to different extents. The quantum yields of fluorescence emission have been rationalized with the structure of the overall systems.
Journal Title: Journal of Photochemistry and Photobiology A: Chemistry
Year Published: 2019
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