Synthesis, spectroscopic characterization and pH dependent photometric and electrochemical fate of Schiff bases.

Abstract

A new Schiff base, 1-((4-bromophenylimino) methyl) naphthalen-2-ol (BPIMN) was successfully synthesized and characterized by (1)H NMR, (13)C NMR, FTIR and UV-Vis spectroscopy. The results were compared with a structurally related Schiff base, 1-((4-chlorophenylimino) methyl) naphthalen-2-ol (CPIMN). The photometric and electrochemical fate of BPIMN and CPIMN was investigated in a wide pH range. The experimental findings were supported by quantum mechanical approach. The redox mechanistic pathways were proposed on the basis of results obtained electrochemical techniques. Moreover, pH dependent UV-Vis spectroscopy of BPIMN and CPIMN was carried out and the appearance of isosbestic points indicated the existence of these compounds in different tautomeric forms.

DOI: 10.1016/j.saa.2014.10.111

Cite this paper

@article{Rauf2015SynthesisSC, title={Synthesis, spectroscopic characterization and pH dependent photometric and electrochemical fate of Schiff bases.}, author={Abdur Rauf and A . H . Shah and Saghir Abbas and Usman Ali Rana and Salah Ud-Din Khan and Saqib Ali and Zia-ur-Rehman and Rumana Qureshi and Heinz-Bernhard Kraatz and Francine B{\'e}langer-Gari{\'e}py}, journal={Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy}, year={2015}, volume={138}, pages={58-66} }