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Updated: May 29, 2026

Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
Physicochemical studies of some novel Y-shaped imidazole derivatives--a sensitive chemisensor
Jayaraman Jayabharathi1, Venugopal Thanikachalam, Kumar Brindha Devi
1Department of Chemistry, Annamalai University, Annamalainagar 608 002, Tamilnadu, India. jtchalam2005@yahoo.co.in
Abstract:
Some novel Y-shaped imidazole derivatives were developed for 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+) and Cu(2+) and it is due to the suppression of radiationless transitions from the n-π* state in the chemisensors. The HOMO-LUMO energies, electric dipole moment (μ) and the first-hyperpolarizability (β) values of the investigated molecule have been studied theoretically which reveal that the synthesized molecules have microscopic non-linear optical (NLO) behaviour with non-zero values.
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