Relative fluorescence response of 1 μM BDP2 (filled symbols), BDP-Ph (empty symbols) and BDP-Fc (empty, crossed symbols) receptors in acetone upon addition of halide anions. A) XB receptors, B) HB receptors. Lines represent fits according to a 1 : 1 hostguest stoichiometric binding model. Note the different concentration ranges for both graphs.
