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標題: Preparation of Fluoroionophores Based on Diamine-Salicylaldehyde Derivatives
作者: Hong, Wang-Hua
Lin, Chu-Chieh
Hsieh, Tung-Sheng
Chang, Cheng-Chung
關鍵字: Fluoroionophore;DS (diamine-salicylaldehyde);Metal recognizer;Anionic-dependent metal binding;Intermolecular complexation;Cellular metal staining
Project: Dyes and Pigments, Volume 94, Issue 3, Page(s) 371–379.
We have developed a series of fluoroionophores from diamine-salicylaldehyde (DS) derivatives and
studied their spectra diversity when interacting with a variety of metal cations. Based on our results, 2-((E)-
(2-(dimethylamino)ethylimino)methyl)-4-(4-methoxystyryl)phenol (I) can specifically chelate Zn+2 in both
organic and semi-aqueous solution. Furthermore, 2-((E)-(2-(dimethylamino)ethylimino)methyl)-4-((E)-2-
(pyridin-4-yl)vinyl)-phenol (II) is an excellent metal recognizer, successfully identifying Zn+2 from
acetates, chloride and perchlorate salts. In addition, control compound (E)-N-(2-methoxy-5-((E)-2-(pyridin-
4-yl)vinyl)benzylidene)-N’,N’-dimethyl-ethane-1,2-diamine (IV) also showed specific metal response to
Cd+2 from Cd(OAc)2 over other anions. This anionic-dependent metal binding behavior was imparted by
the pyridine moiety, which supports extra intermolecular metal-fluorophore complexation.
Fluoroionophores I and II were preliminarily tested for cellular metal staining in general fluorescence and
ratio fluorescence methods.
DOI: 10.1016/j.dyepig.2011.10.007
Appears in Collections:生醫工程研究所

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