Affiliations: [a] Department of Chemistry, UIS, Chandigarh University, Mohali, PB, India
| [b] Division of Material groups, BARC, Mumbai, MH, India
| [c] Department of Applied Science (Chemistry), Madan Mohan Malaviya University of Technology, Gorakhpur, UP, India
Correspondence:
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Corresponding author: Atul P. Singh, Department of Chemistry, UIS, Chandigarh University, Mohali, Punjab. Tel.: +91 7011194092. E-mail: [email protected]; ORCID: 0000-0002-0078-9449.
Abstract: A novel Schiff base derivative L (N1-(thiophene-2-ylmethylene)benzene-1,2-diamine) was synthesized via condensation reaction of 3-thiophene carboxaldehyde and 1,2-diamino benzene. The synthesized compound was authenticated using 1 H NMR, 13 C NMR, HRMS, and IR spectroscopy. The compound L was found to be a Fe3+ sensor with the complexation ratio of 1 : 3 as revealed by Job’s plot with maximum absorption at 318 nm. The photophysical properties were studied using absorption and emission spectra. DFT and TD-DFT studies were carried out in order to support the photophysical outcomes of compound L. An antioxidant behaviour of compound L was studied using TAC, FRAP, and DPPH assays and it was found to be showing better TAC activity than the used standard i.e. gallic acid.
