Abstract
The prospect mechanism and complexation possibility of the receptor with Al3+ metal ions shown and exposed the fluorescence behavior of the receptor with Al3+ excited under the UV lamp at 410nm.
•Two new Schiff bases were used for the distinct detection of Al3+.•The probe was exploited at physiological pH for environmental and biological samples.
Two new Schiff base receptors 1 and 2 have been synthesized and characterized by FT-IR, HRMS and 1H NMR spectroscopic techniques. Both the receptors show large fluorescence enhancement after addition of Al3+ which is recognized by calorimetry. Furthermore, the stability constant and the detection limit of the receptor–Al3+ complex were found to be 1.41×104M−1 and 1.59×104M−1; and 4.79×10−8M and 8.28×10−8M for receptors 1 and 2 respectively, concluded through the titration method. Not only this, the synthesized receptors work glowing in physiological pH range. Thus these receptors could be employed for the estimation of Al3+ qualitative as well as quantitative.