The ferrocene-pyrylium dyad as a selective colorimetric chemodosimeter for the toxic cyanide and hydrogen sulfide anions in water†‡
Abstract
The ferrocene-pyrylium dyad 1 behaves as a selective redox and colorimetric chemodosimeter for CN− and HS− anions, exhibiting a clear perturbation in the redox potential of the ferrocene unit and in the absorption band, in the presence of these anions.