Abstract
A receptor R1 was designed and synthesised for colorimetric detection of F− ions as well as Cu2+ ions via intramolecular charge transfer mechanism. Upon addition of F− ions in dry DMSO, the color of the receptor R1 changed from pale yellow to blue. The receptor showed a unique property of solvatochromism by displaying different coloration with different solvents only in the presence of F− ions, which were applied to determine the percentage composition of binary solvent mixtures. The receptor R1 was able to detect Cu2+ ions colorimetrically where it exhibited a color change from pale yellow to orange-red. In addition, the receptor was subjected to molecular logic gate applications, wherein it showed ‘ON–OFF’ switching operations.
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