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Abstract
Some novel imidazole derivatives were developed as highly sensitive chemisensors for transition metal ions. A prominent fluorescence enhancement was found in the presence of transition metal ions such as Hg 2+, Pb 2+, Cu 2+, Zn 2+, Co 2+ and Fe 2+ and this was suggested to result from the suppression of radiationless transitions from the n–π* state in the chemisensors. By DFT calculation HOMO–LUMO energies were calculated, the electric dipole moment ( μ) and the hyperpolarizability ( β) of the investigated molecules have been studied experimentally and also theoretically. These synthesized molecules were found to have microscopic non-linear optical (NLO) behaviour with non-zero tensor components.
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Schedule a callMore From: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
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