An electron deficient Cu(III)-corrole (B) has been identified as a highly selective colorimetric sensor for iodide. A one-electron redox couple between iodide and Cu(III)-corrole serves as the basis for selectivity. The proposed mechanism has been supported by UV-vis and 19F NMR studies and further by unambiguous identification of Cu(II) species through EPR.
B. Basumatary, M. Ayoub Kaloo, V. Kumar Singh, R. Mishra, M. Murugavel and J. Sankar, RSC Adv., 2014, 4, 28417 DOI: 10.1039/C4RA04191G
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