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  • Küçük Resim
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    Synthesis and Characterization of a New Dioxime: Thermal and Magnetic Behavior of Its Heterotrinuclear Bf2+-capped Complexes
    (TAYLOR & FRANCIS LTD, 2010) Uysal, Şaban
    New heterotrinuclear complexes have been obtained from dinuclear Fe(III) oxygen-bridged N,N'-bis(salicylidene)ethylenediamine (salenH(2)) and bis(salicylidene)-o-phenylenediamine (salophH(2)) and Co(II), Ni(II), Cu(II) salts. Then, heterotrinuclear vic-dioxime complexes containing BF2+ caps have been synthesized. The complexes have been characterized as low-spin distorted octahedral Fe(III) bridged by COO- groups. The structure of dioxime and its complexes were identified by using elemental analysis, magnetic susceptibility, thermal analysis, ICP-AES, 1H-NMR, and IR spectral data.
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    Synthesis and Characterization of Dendrimeric Bridged Salen/Saloph Complexes and Investigation of Their Magnetic and Thermal Behaviors
    (WILEY-BLACKWELL, 2010) Koç, Ziya Erdem; Uysal, Şaban
    Eight new multinuclear Fe(III) and Cr(III) complexes involving tetradentate schiff bases N,N'-bis(salicylidene)ethylenediamine (salenH(2)) or N,N'-bis(salicylidene)benzene-1,2-diamine (salophH(2)) and the two new ligands 4,4',4 '',4''',4'''',4'''''-[1,3,5-trianzine-2,4,6-triyltris(nitrilomethylidyne-4,1-phenyl-eneoxy-1,3,5-trianzine-6,2,4-triyldiimino)]hexakis[benzoic acid] (4) or 5,5',5 '',5''',5'''',5'''''-[1,3,4-trianzine-2,4,6-triyltris(nitrilomethylidyne-4,1-phenyleneoxy-1,3,5-trianzine-6,2,4-trianzine-6,2,4-triyldiimino)]hexakis[benzene-1,3-dicarboxylic acid] (5) were synthesized (schemes 1 and 2) and characterized by means of (1)H-NMR and FT-IR spectroscopy, elemental analysis, LC/MS analysis, AAS (atomic-absorption spectrum) analysis, thermal analyses, and magnetic-susceptibility measurements. The complexes can also be characterized as low-spin distorted-octahedral Fe(III) and Cr(III) complexes bridged by carboxylato moieties.
  • Küçük Resim
    Öğe
    Synthesis and Characterization of Dendrimeric Melamine Cored [Salen/Salophfe(III)] and [sale N/Salophcr(III)] Capped Complexes and Their Magnetic Behaviors
    (ELSEVIER SCIENCE BV, 2010) Uysal, Şaban; Koç, Ziya Erdem
    2,4,6-Tris(4-hydroxybenzimino)-1,3.5-triazine [1] 2 has been synthesized from the reaction of 1 equiv. melamine (2.4,6-triamino-1,3,5-triazine) and 3 equiv. 4-hydroxybenzaldehyde. Then, 2,4,6-tris(4-(4,6-dichloro-1,3,5-triazine-2-yloxy)benzimino)-1,3,5-triazine 3 has been synthesized from the reaction of 1 equiv. 2 and 3 equiv. cyanuric chloride. And then, two new triazine centered dendrimeric ligands 2,4,6-tris(4-(4,6-bis(4-carboxyphenyloxy)-1,3,5-triazine-2-yloxy)benzimino)-1,3,5-triazine 4 and 2,4,6-tris(4-(4,6-bis(3,5-dicarboxyphenyloxy)-1,3,5-triazine-2-yloxy)benzimino)-1,3,5-triazine 5 have been synthesized from the reaction of 1 equiv. 3 and 6 equiv 4-hydroxybenzoic acid or 5-hydroxyisophtalic acid. Finally, eight new multinuclear Fe(III) and Cr(III) complexes involving tetradenta Schiff bases N,N'-bis(salicylidene)ethylenediamine-(salenH(2)) or bis(salicylidene)-o-phenylene diamine-(salophH(2)) with 4 or 5 have been synthesized and characterized by means of elemental analysis, H-1 NMR, FT-IR spectroscopy, thermal analyses and magnetic susceptibility measurements. The complexes can also be characterized as low-spin distorted octahedral Fe(III) and Cr(III) bridged by carboxylic acids.
  • Küçük Resim
    Öğe
    Synthesis and characterization of s-triazine cored schiff base containing β-lactam and ıts [M(Salen/Saloph)] (M= Cr3+ and Fe3+) capped complexes
    (Selçuk Üniversitesi, 01.10.2024) Caymaz, Ahmet; Mirghani, Ahmed Hamdi; Uysal, Şaban
    This study consists of a tripodal 6-iminopenicylanic acid ligand synthesized based on the s-triazine group and its four trinuclear complexes. For this purpose, 2,4,6-tri(p-formylphenoxy)-1,3,5-triazine (III) (TRIPOD) was obtained from the reaction of 2,4,6-trichloro-1,3,5-triazine and 4-hydroxybenzaldehyde. Then, tripodal target ligand (V) was obtained from the reaction of TRIPOD and 6-aminopenicylanic acid. Finally, tripodal trinuclear (ML) capped target complexes were obtained from the reactions of the initial complexes [(ML)2O] (M= Cr3+ or Fe3+, L= Salen or Saloph) with the target ligand in methanol media. The structures of all obtained ligands were elucidated using 1H NMR, FT-IR, and elemental analysis methods. The structures of the complexes were characterized using FT-IR, magnetic susceptibility, ICP-OES, and TGA methods.
  • Küçük Resim
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    Üç yönlü ve polimerik schiff bazlarının sentezi ve metal komplekslerinin incelenmesi
    (Selçuk Üniversitesi Fen Bilimleri Enstitüsü, 2008-03-18) Uysal, Şaban; Uçan, H. İsmet
    Bu çalışmada çıkış maddesi olarak 2,4,6-triamino-1,3,5-triazin (melamin) kullanıldı. Melamine, benzen ortamında 3,4-dihidroksibenzaldehit ve 4-karboksi-benzaldehit literatürde verilen metotlara göre üç yönlü ve tek yönlü olarak bağlandı. Sonra, yeni Fe(III) ve Cr(III) kompleksleri etanol ortamında [(FeSalen)2O], [(FeSaloph)2O], [(CrSalen)2O] ve [(CrSaloph)2O] ile reaksiyona tabi tutularak elde edildi. Elde edilen tek yönlü triazin bileşikleri 2-(3,4-dihidroksibenzimino)-4,6-diamino-1,3,5-triazin, 2-(4-karboksibenzimino)-4,6-diamino-1,3,5-triazin [(FeSa-len)2O], [(FeSaloph)2O], [(CrSalen)2O] ve [(CrSaloph)2O] köprü kompleksleri ile etanol ortamında reaksiyona tabi tutularak yeni tek yönlü Fe(III) ve Cr(III) kompleksleri elde edildi. Elde edilen tek yönlü Fe(III) ve Cr(III) kompleksleri tereftalaldehit ve glutaraldehit ile etanol ortamında K2CO3 ve trietilamin yanında geri soğutucu altında polimerleştirildi. Sonuç olarak, elde edilen üç ve tek yönlü ligandların, monomerik ve polimerik komplekslerin yapıları elementel analiz, FT-IR spektroskopisi, 1H-NMR spektroskopisi, ESI-LS-MS spektroskopisi, TGA-DTA analizi ve magnetic sussebtibilite ölçümü teknikleri kullanılarak aydınlatıldı.