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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: J Photochem Photobiol A Chem. 2015 Oct 1;311:1–15. doi: 10.1016/j.jphotochem.2015.05.008

Fig. 3.

Fig. 3

Structures of compounds 4–6, and the emission color change of 6 upon zinc(II) binding in acetonitrile [44].