A Multifunctional Tripodal Fluorescent Probe: “Off−On” Detection of Sodium as well as Two-Input AND Molecular Logic Behavior

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• 作者：Navneet Kaur ; Narinder Singh ; Donald Cairns ; John F. Callan
• 刊名：Organic Letters
• 出版年：2009
• 出版时间：June 4, 2009
• 年：2009
• 卷：11
• 期：11
• 页码：2229-2232
• 全文大小：192K
• 年卷期：v.11,no.11(June 4, 2009)
• ISSN：1523-7052

文摘

A simple tripodal sensor (3) with multifunctional capability has been synthesized in three steps. The sensor, a naphthalene-functionalized Schiff base, displays selectivity for sodium over other important physiological and environmentally important cations through changes in the emission spectra at λ_max 355 nm when excited at 270 nm. Interestingly, the combined addition of both sodium and potassium produced a new band at λ_max 445 nm, while the addition of sodium or potassium alone produced negligible changes at this wavelength. Therefore, the conditions of a two-input AND logic operator were also satisfied.