A novel class of bioactive complexes (1-3) [M(L)(bpy)], where, L = 2-(4-morpholinobenzylideneamino)phenol, bpy = 2,2'-bipyridine, M = Mn (1), Co (2) or Ni (3), were assigned to octahedral geometry based on analytical and spectral measurements. Gel electrophoresis showed that complex (2) demonstrated significant DNA cleavage activity compared to the other complexes under the action of oxidation agent (HO). The DNA binding constant properties measured by various techniques were in the following sequence: (2) > (3) > (1) > (), which suggests that the complexes might intercalate DNA, a possibility that is also supported by their biothermodynamic characteristics.
View Article and Find Full Text PDFNovel constructed bioactive mixed-ligand complexes () [Cu(L)(phen)] and () [Zn(L)(phen)] {where, L = 2-(4-morpholinobenzylideneamino)phenol), phen = 1,10-phenanthroline} have been structurally analysed by various analytical and spectroscopic techniques, including, magnetic moments, thermogravimetric analysis, and X-ray crystallography. Various analytical and spectral measurements assigned showed that all complexes appear to have an octahedral geometry. Agar gel electrophoresis's output demonstrated that the Cu(II) complex () had efficient deoxyribonucleic cleavage and complex () demonstrated the partial cleavage accomplished with an oxidation agent, which generates spreadable OH through the Fenton type mechanism.
View Article and Find Full Text PDFA new class of pharmacologically active mixed-ligand complexes (-) [M(L) (bpy)], where = 2-(4-morpholinobenzylideneamino)phenol), bpy = 2,2'-bipyridine, M = Cu (), and Zn (), were assigned an octahedral geometry by analytical and spectral measurements. Gel electrophoresis showed that complex () demonstrated the complete DNA cleavage mediated by HO. The overall DNA-binding constants observed from UV-vis, fluorometric, hydrodynamic, and electrochemical titrations were in the following sequence: () > () > (), which suggests that the complexes might intercalate DNA, a possibility that is further supported by the biothermodynamic characteristics.
View Article and Find Full Text PDFJ Inorg Biochem
November 2022
A novel series of metal(II) complexes (1-5) [M(L)]{Where M = Cu (1), Co (2), Mn (3), Ni (4) and Zn (5)} constructed from 2-(4-morpholinobenzylideneamino)phenol Schiff base ligand (HL) in a 1:2 M ratio and the spectral and analytical results put forward square planar geometry. Spectro-electrochemical, hydrodynamic, gel electrophoresis, and DNA binding/cleavage results for all the compounds demonstrate that complex (1) had excellent DNA binding/cleavage properties compared to other compounds. The observation also suggests that test compounds could intercalate with DNA, and the biothermodynamic property more strongly supports the stabilizing of the double helix DNA with the complexes.
View Article and Find Full Text PDFBiosensitive and biologically active morpholine-based transition metal(ii) complexes (1-5) were constructed as [M(L) AcO]·HO {where M = Cu (1) = 1; Co (2), Mn (3), Ni (4), = 4 and Zn (5) = 2}, which were synthesized from 2-(-(2-morpholinoethylimino) methyl)-4-bromophenol ligand (HL) and structurally characterized by various analytical and spectroscopic techniques, which proposed a square planar and tetrahedral geometry around the central metal ion with lattice water molecules. The gel electrophoresis results revealed that complexes 1 and 5 had more potent DNA cleavage efficacy in the presence of an oxidizing agent (HO) as compared to the others. The observed DNA binding results for all the compounds as determined by spectro-electrochemical and hydrodynamic techniques were in the order 3.
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