Yazar "Tomsuk, Abdussamet" seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • Küçük Resim
    Öğe
    Synthesis and characterization of 1,2-bis(2-(5-bromo-2-hydroxybenzilidenamino)-4-chlorophenoxy)ethane ant its metal complexes:An experimental, theoretical, electrochemical, antioxidant and antibacterial study
    (Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2014) İlhan, Salih; Baykara, Haci; Tomsuk, Abdussamet; Okumuş, Veysi; Levent, Abdulkadir; Seyitoğlu, Salih; Özdemir, Sadin
    A new Schiff base ligand was synthesized by reaction of 5-bromosalicylaldehyde with 1,2-bis(4-chloro-2- aminophenoxy)ethane. Then the Schiff base complexes were synthesized by the reaction of metal salts and the novel Schiff base. The molar conductivity properties of the complexes were studied and found out that the complexes are nonelectrolytes. The structures of the ligand and its metal complexes were characterized by elemental analysis, FT-IR, UV–VIS, magnetic susceptibility measurements, molar conductivity measurements, and thermal gravimetric analysis. In addition antioxidant, theoretical NMR studies and cyclic voltammetry of the complexes were done. Two methods namely metal chelating activity and diphenylpicrylhydrazyl (DPPH) radical scavenging method were used to determine the antioxidant activity, and antibacterial properties of the compounds were also studied.
  • Küçük Resim
    Öğe
    Synthesis and characterization of a new di-functional ligand and its metal complexes: an experimental, theoretical, cyclic voltammetric and antimicrobial study.
    (Synthesis and Reactivity in Inorganic, Metal-Organic & Nano Metal Chemistry, 2015) Baykara, Haci; İlhan, Salih; Tomsuk, Abdussamet; Seyitoğlu, Salih; Levent, Abdulkadir; Okumuş, Veysi; Dündar, Abdurrahman
    A new difunctional Schiff base ligand and its some metal complexes were synthesized. The compounds were characterized by elemental analysis, 1H-NMR, 13C-NMR, FT-IR, UV-VIS, magnetic susceptibility measurements, molar conductivity measurements, and thermal gravimetric analysis techniques. Additionally, DPPH scavenging, metal chelating and antibacterial activity of compounds were examined via in vitro methods. The lowest DPPH scavenging activity observed by Co(II) as 36.28% and highest was ligand as 52.00%. A cyclic voltammetric study was also carried out to determine redox potentials of the compounds. Some theoretical studies such as 1H-NMR, HOMO-LUMO, and mapped electron density of the ligand were also carried out successfully.
  • Küçük Resim
    Öğe
    Synthesis, characterization and experimental, theoretical, electrochemical, antioxidant and antibacterial study of a new schiff base and its complexes
    (Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2014) Baykara, Haci; İlhan, Salih; Levent, Abdulkadir; Seyitoğlu, Salih; Özdemir, Sadin; Okumuş, Veysi; Tomsuk, Abdussamet; Cornejo, Mauricio
    A new Schiff base ligand was synthesized by reaction of salicylaldehyde with 1,6-bis(4-chloro-2-aminophenoxy) hexane. Then the Schiff base complexes were synthesized by metal salts and the Schiff base. The metal to ligand ratio of metal complexes was found to be 1:1. The Cu(II) complex is proposed to be square planar and the Co(II), Ni(II), Mn(II) and Zn(II) complexes are proposed to be tetrahedral geometry. The Ti(III) and V(III) complexes are proposed to be a capped octahedron in which a seventh ligand has been added to triangular face. The complexes are non-electrolytes as shown by their molar conductivities (KM). The structure of metal complexes is proposed from elemental analysis, FT-IR, UV–vis, magnetic susceptibility measurements, molar conductivity measurements, Mass Spectra and thermal gravimetric analysis. In addition antimicrobial and antioxidant studies, cyclic voltammetry of the complexes, theoretical 1H NMR and HOMO–LUMO energy calculations of the new di-functional ligand were done.