Synthesis, characterization, nucleic acid interactions and photoluminescent properties of methaniminium hydrazone Schiff base and its Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) complexes

Sennappan, M and Murali Krishna, P and Hosamani, AA and Hari Krishna, R (2018) Synthesis, characterization, nucleic acid interactions and photoluminescent properties of methaniminium hydrazone Schiff base and its Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) complexes. In: Journal of Molecular Structure, 1164 . pp. 271-279.

PDF jou_mol_str_1164_271-279_2018.pdf - Published Version Restricted to Registered users only Download (1MB) | Request a copy

Abstract

An environmental benign and efficient reaction was carried out via amine exchange and condensation reaction in water and methanol mixture (3:1) and absence of catalyst between 1-[3-(2-hydroxy benzylidene)amine)phenyl]ethanone and benzhydrazide yields methaniminium hydrazone Schiff base in high yield. The prepared ligand was structurally characterized by using single crystal XRD, elemental analysis and spectroscopy (UV–Vis, FT-IR, LC-MS and NMR) techniques. The crystal data indicates the ligand crystallizes in orthorhombic system with Pna21 space group. Further, the ligand was used in synthesis of mononuclear Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) complexes and were characterized by elemental analysis, magnetic moment and spectroscopy (UV–Vis, FT-IR and ESR) studies. The spectral data showed that ligand is coordinated to the metal ion through azomethine nitrogen and methaniminium nitrogen. The DNA binding absorption titrations reveals that, ligand, L and its metal complexes, 1–6 are avid binders to CT- DNA. The apparent binding constant values of compounds are in the order of 106 M−1. The nuclease activity of ligand, L and its metal complexes, 1–6 were investigated by gel electrophoresis method using pUC18 DNA. The photoluminescent properties of the methaniminium hydrazone ligand, L and its various metal complexes, 1–6 were investigated. The emission spectra of both ligand (L) and metal complexes (1-6) exhibits emission in the range of blue to red.

Item Type:	Journal Article
Publication:	Journal of Molecular Structure
Publisher:	Elsevier B.V.
Additional Information:	The copyright for this article belongs to the Elsevier B.V.
Keywords:	Chelation; Cobalt compounds; Condensation reactions; Copper compounds; DNA; Electron spin resonance spectroscopy; Electrophoresis; Emission spectroscopy; Ligands; Magnetic moments; Manganese compounds; Metal complexes; Metal ions; Metals; Nickel compounds; Nitrogen; Nuclear magnetic resonance; Nucleic acids; Single crystals; Synthesis (chemical); Zinc compounds, Exchange reaction; Gel electrophoresis; Methaniminium; Nuclease activity; Photo luminescent, Cadmium compounds
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	07 Aug 2022 09:07
Last Modified:	07 Aug 2022 09:07
URI:	https://eprints.iisc.ac.in/id/eprint/75450

Actions (login required)

View Item