The binding behavior of triphenylene based copper ensemble prepared in situ has been investigated toward various anions (F−, Cl−, Br−, I−, CH3COO−, H2PO4−, NO3−, OH−, ClO4−, CN−, CO3− and SO4−) by UV-vis and fluorescence spectroscopy. Among various anions tested, 1–Cu2+ ensemble shows selective and sensitive response towards cyanide ions and responds to CN− ions even in the presence of bovine serum albumin and in blood serum milieu. Further, as practical application of compound 1, we utilized the TLC strips coated with THF solution of 1 for the solid state detection of copper and cyanide ions.
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