Two new isomerous fluorescent chemosensors for Al 3+ based on photoinduced electron transfer

XJ Jiang, H Tang, XY Li, SQ Zang, HW Hou…

Index: Jiang, Xiu-Juan; Tang, Hao; Li, Xiao-Yuan; Zang, Shuang-Quan; Hou, Hong-Wei; Mak, Thomas C.W. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2013 , vol. 115, p. 26 - 32

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Abstract

Abstract Two new isomerous PET fluorescent chemosensors (L and L′) for Al 3+ have been designed, synthesized and characterized. The two chemosensors exhibited fluorescence enhancement upon binding Al 3+ in CH 3 CN by PET inhibition processes from both the sulfur and the nitrogen donors to anthracene. The job's plot, Benesi–Hildebrand plot and 1 H NMR titration experiments indicate that both chemosensors form a 1: 1 ...