title: Synthesis, characterization of 1,2,4-triazole Schiff base derived 3d-metal complexes: Induces cytotoxicity in HepG2, MCF-7 cell line, BSA binding fluorescence and DFT study.
abstract: Two novel Schiff base ligands H2L1and H2L2have been synthesized by condensation reaction of amine derivative of 1,2,4-triazole moiety with 2-hydroxy-4-methoxybenzaldehyde. Co(II), Ni(II), Cu(II) and Zn(II) of the synthesized Schiff bases were prepared by using a molar ratio of ligand:metal as 1:1. The structure of the Schiff bases and synthesized metal complexes were established by1H NMR, UV-Vis, IR, Mass spectrometry and molar conductivity. The thermal stability of the complexes was study by TGA. Fluorescence quenching mechanism of metal complexes 1-4 show that Zn(II) and Cu(II) complex binds more strongly to BSA. In DFT studies the geometries of Schiff bases and metal complexes were fully optimized with respect to the energy using the 6-31+g(d,p) basis set. The spectral data shows that the ligands behaves as binegative tridentate. On the basis of the spectral studies, TGA and DFT data an octahedral geometry has been assigned for Co(II), Ni(II), square planar for Cu(II) and tetrahedral for Zn(II) complexes. The anticancer activity were screened against human breast cancer cell line (MCF-7) and human hepatocellular liver carcinoma cell line (Hep-G2). Result indicates that metal complexes shows increase cytotoxicity in proliferation to cell lines as compared to free ligand.
authors.affiliation: Department of Chemistry, Zakir Husain Delhi College, University of Delhi, JLN-Marg, New Delhi 110002, India.
authors.forename: Prateek
authors.initials: P
authors.lastname: Tyagi
authors.affiliation: Department of Chemistry, Zakir Husain Delhi College, University of Delhi, JLN-Marg, New Delhi 110002, India.
authors.forename: Monika
authors.initials: M
authors.lastname: Tyagi
authors.affiliation: Department of Chemistry, Moti Lal Nehru College, Benito Juarez Marg, New Delhi 110021, India.
authors.forename: Swati
authors.initials: S
authors.lastname: Agrawal
authors.affiliation: Department of Chemistry, Zakir Husain Delhi College, University of Delhi, JLN-Marg, New Delhi 110002, India. Electronic address: schandra_00@yahoo.com.
authors.forename: Sulekh
authors.initials: S
authors.lastname: Chandra
authors.affiliation: Institute of Nuclear Medicine & Allied Sciences, DRDO, Delhi 110054, India.
authors.forename: Himanshu
authors.initials: H
authors.lastname: Ojha
authors.affiliation: Department of Chemistry, Miranda House, University of Delhi, Delhi 110007, India.
authors.forename: Mallika
authors.initials: M
authors.lastname: Pathak
mesh_terms: D000818:Animals; D002417:Cattle; D016923:Cell Death / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D004578:Electron Spin Resonance Spectroscopy; D004583:Electrons; D005453:Fluorescence; D056945:Hep G2 Cells; D006801:Humans; D008024:Ligands; D061986:MCF-7 Cells; D008280:Magnetics; D013058:Mass Spectrometry; D008968:Molecular Conformation; D011485:Protein Binding / Q000187:drug effects; D066244:Proton Magnetic Resonance Spectroscopy; D011789:Quantum Theory; D012545:Schiff Bases / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D012710:Serum Albumin, Bovine / Q000378:metabolism*; D013055:Spectrophotometry, Infrared; D013696:Temperature; D013818:Thermogravimetry; D014230:Triazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology
chemical_list: D056831:Coordination Complexes; D008024:Ligands; D012545:Schiff Bases; D014230:Triazoles; D012710:Serum Albumin, Bovine; C045575:1,2,4-triazole
keywords: Anticancer activity; BSA binding; Co(II); DFT; Ni(II), Cu(II) and Zn(II) complexes; Schiff base