Naphthaldehyde–Urea/Thiourea Conjugates as Turn??On Fluorescent Probes for Al3+ Based on Restricted C= N Isomerization

D Maity, T Govindaraju

Index: Maity, Debabrata; Govindaraju European Journal of Inorganic Chemistry, 2011 , # 36 p. 5479 - 5485

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Citation Number: 42

Abstract

Abstract We have synthesized naphthaldehyde–carbonohydrazone (NC) and naphthaldehyde–thiocarbonohydrazone (NTC) Schiff base ligands by the condensation reaction of 2-hydroxy naphthaldehyde with urea and thiourea, respectively. Both these Schiff base ligands show blue turn-on fluorescence in the presence of aluminum (III), as a result of a restricted C= N isomerization mechanism. Aluminum (III) can be detected in the ...