Yazar "Koc, Ziya Erdem" seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • Küçük Resim Yok
    Öğe
    The synthesis and characterization of (MSalen/salophen/saldeta/salpy) [M=Fe(III) or Cr(III)] capped heteromultinuclear schiff bases-dioxime Ni(II) complexes: Their thermal and magnetic behaviours
    (Elsevier Science Bv, 2018) Uysal, Saban; Koc, Ziya Erdem
    Chlorophenylglyoxime and Ligand Complexes ([M(Salen/Salophen)](2)O, [M(Saldeta/Salpy)Cl] shortened as LC, M = Fe(III) or Cr(III)) have been synthesized. 3,5-dicarboxyanilinophenylglyoxime (5) and 4-carboxyphenylhydrazinophenylglyoxime (6) have been synthesized with the reaction of chlorophenylglyoxime and 5-aminoisophtalalic acid or 4-hydrazinobenzoic acid. [M(Salen/Salophen/Saldeta/ Salpy)-3,5-dicarboxyanilinophenyl-glyoxime)] (7-14) or [M(Salen/Salophen)-4-carboxyphenylhydrazinophenylglyoxime)] (15-22) have been synthesized from (5) or (6) and LCs. The new heterotrinuclear and pentanuclear complexes (23-38) have been obtained from (7-22) and Ni(II) salt. Then, heteronuclear and BF2+ capped vic-dioxime complexes (39-54) have been synthesized. The complexes have been characterized as low-spin (S=1/2) distorted octahedral [Fe-III(Salen/Salophen)], high-spin (S = 5/2) distorted octahedral [Fe-III(Saldeta/Salpy)] and (S = 3/2) distorted octahedral [Cr-III(Salen/Salophen/Saldeta/Salpy)] bridged by COO- groups. The structure of all ligand and complexes were identified by using elemental analysis, thermal analyses, magnetic susceptibility, LC-MS, ICP-AES, H-1-NMR and FT-IR spectral data. (C) 2018 Elsevier B.V. All rights reserved.
  • Küçük Resim Yok
    Öğe
    Synthesis and Characterization of Cross Linked Acetoguanamine Polymer Complexes: Investigation of their Thermal and Magnetic Properties
    (Slovensko Kemijsko Drustvo, 2020) Guney, Gurkan; Uysal, Saban; Koc, Ziya Erdem
    In this study, 2,4-diamino-6-methyl-1,3,5-triazine (acetoguanamine) was used as the starting material. 2,4-diamino-6-methyl-1,3,5-triazine was boiled under reflux with glutaraldehyde and terephthaldehyde in acetonitrile. And, s-triazine-containing polymer ligands (IV and V) were obtained by these condensation reactions. These target s-triazin containing polymer ligands we obtained were analyzed by H-1-NMR, FT-IR and elemental analysis. Then, polymeric metal (Co2+, Ni2+ and Cu2+) complexes of the polymeric ligands (VI-XI) were obtained from the interaction with CoCl2 center dot 6H(2)O, NiCl2 center dot 6H(2)O and CuCl2 center dot 2H(2)O at 60 degrees C in ethyl alcohol. The structures of these complexes were also illuminated and elucidated using FT-IR, elemental analysis and magnetic susceptibility analysis. The polymerization degrees of the polymeric ligands were determined by the molecular weight determination study with the viscometer.
  • Küçük Resim Yok
    Öğe
    Synthesis and characterization of dopamine substitue tripodal trinuclear [(salen/salophen/salpropen)M] (M=Cr(III), Mn(III), Fe(III) ions) capped s-triazine complexes: Investigation of their thermal and magnetic properties
    (Elsevier Science Bv, 2016) Uysal, Saban; Koc, Ziya Erdem
    In this work, we aimed to synthesize and characterize a novel tridirectional ligand including three catechol groups and its novel tridirectional-trinuclear triazine core complexes. For this purpose, we used melamine (2,4,6-triamino-1,3,5-triazine) (MA) as starting material. 2,4,6-tris(4-carboxybenzimino)-1,3,5-triazine (II) was synthesized by the reaction of an equivalent melamine (I) and three equivalent 4-carboxybenzaldehyde. 4,4',4 ''-((1E,1'E,1 '' E)-((1,3,5-triazine-2,4,6-triyl)tris(azanylylidene))tris(methanylylidene))tris(N-(3,4-dihydroxyphenethyl)benzamide) L (IV) was synthesized by the reaction of one equivalent (II) and three equivalent dopamine (3,4-dihydroxyphenethylamine) (DA) by using two different methods. (II, III, IV) and nine novel trinuclear Cr(III), Mn(III) and Fe(III) complexes of (IV) were characterized by means of elemental analyses, H-1 NMR, FT-IR spectrometry, LC-MS (ESI+) and thermal analyses. The metal ratios of the prepared complexes were performed using Atomic Absorption Spectrophotometry (AAS). We also synthesized novel tridirectional-trinuclear systems and investigated their effects on magnetic behaviors of [salen, salophen, salpropen Cr(III)/Mn(III)/Fe(III)] capped complexes. The complexes were determined to be low-spin distorted octahedral Mn(III) and Fe(III), and distorted octahedral Cr(III) all bridged by catechol group. (C) 2015 Elsevier B.V. All rights reserved.