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. Author manuscript; available in PMC: 2013 Sep 21.
Published in final edited form as: J Org Chem. 2012 Sep 5;77(18):8268–8279. doi: 10.1021/jo3016659

Figure 13.

Figure 13

(a) Effect of addition of ZnCl2 (0–98 μM) on the absorption spectrum of compound 4 (5 μM) in a 1:1 CH3CN/HEPES buffer (50 mM HEPES, 50 mM NaCl, pH 7.2). (b) Corresponding changes of the emission spectrum (λex = 370 nm).