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. Author manuscript; available in PMC: 2010 May 4.
Published in final edited form as: Angew Chem Int Ed Engl. 2008;47(50):9648–9652. doi: 10.1002/anie.200803970

Figure 2.

Figure 2

UV/Vis spectra of aqueous solutions of 9 (initial concentration = 25.5 μM) after exposure to an equal volume of a CH2Cl2 solution of polymer 4 (effective concentration of the calix[4]pyrrole and crown ether repeat units was 1.56 and 1.22 mM, respectively), 1 (1.56 mM), 3 (1.22 mM), or a mixture of 1 and 3 (1.56 and 1.22 mM, respectively).