A simple epoxy-based polymer 1 bearing 1-naphthylamine units has been synthesized and its recognition behaviors toward various metal ions have been investigated in THF–water (8: 2, v/v) solution. The designed polymer 1 was found to exhibit selective ON–OFF-type fluorosensing behavior toward Fe3+ ions over other representative metal ions such as Cu2+, Zn2+, Co2+, Ni2+, and Hg2+ ions.
[Marion, Nicolas; Navarro, Oscar; Mei, Jianguo; Stevens, Edwin D.; Scott, Natalie M.; Nolan, Steven P. Journal of the American Chemical Society, 2006 , vol. 128, # 12 p. 4101 - 4111]
