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    Synthesis and Complex Formation of Some Hydrochlorid Salts of Phenylaminoglyoxime
    (Selçuk Üniversitesi Fen Fakültesi, 2000) Güp, Ramazan; Bedük, Ahmet Dinçer
    Carboxyphenylaminoglyoximes were synthesized by reacting anti-chloroglyoxime with 2-, 3- and 4- aminobenzoic acids. Their complexes with Ni(II), Co(II) and Cu(II) ions were isolated. The structures of these new compounds were proposed on the basis of elemental analysis, 1 H-NMR and IR data.
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    Synthesis and Extraction Properties of 1,2-bis(Amidoxime) Derivatives
    (Inst Organic Chem and Biochem, 2002) Güp, Ramazan; Alpoğuz, Hamza Korkmaz; Bedük, A. Dinçer
    Four 1,2-bis(amidoxime)s bearing benzoate groups were synthesized. Their complexing properties were studied by the liquid-liquid extraction of selected alkali (Na+ and K+) and transition metals (Hg2+, Cu2+, Pb2+ and Ni2+). It has been observed that all ligands show a high affinity to Cu2+ and Hg2+ ions, whereas almost no affinity to alkali metals.
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    Synthesis and Investigation Extraction Properties of 4- Methylacetophenone, 4-Chloroacetophenone and Isonitrosoacetephenone 4-Aminobenzoylhydrazones
    (Selçuk Üniversitesi Fen-Edebiyat Fakültesi, 2004) Güp, Ramazan; Koç, Ziya Erdem
    4-Methylacetophenone p-aminobenzoylhydrazone (L1), 4-chloroacetophenone p-aminobenzoylhydrazone (L2) and isonitrosoacetophenone p-aminobenzoylhydrazone (L3) were prepared by reaction of 4-aminobenzoic acid hyrazide with pmethylacetophenone, p-chloroacetophenone and isonitrosoacetophenone, respectively. The structures of these new compounds were proposed on the basis of elemental analysis, 1H-NMR and IR data. The extraction abilities of these new compounds were also examined by the solid-liquid extraction of selected transition metal [ Ni(II), Cu(II), Co(II), Zn(II), Mn(II) and Cd(II)] ions.
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    Synthesis and Investigation Extraction Properties of 4- Methylacetophenone, 4-Chloroacetophenone and Isonitrosoacetephenone 4-Aminobenzoylhydrazones
    (Selçuk Üniversitesi, 2004) Güp, Ramazan; Koç, Ziya Erdem
    4-Methylacetophenone p-aminobenzoylhydrazone (L1), 4-chloroacetophenone p-aminobenzoylhydrazone (L2) and isonitrosoacetophenone p-aminobenzoylhydrazone (L3) were prepared by reaction of 4-aminobenzoic acid hyrazide with pmethylacetophenone, p-chloroacetophenone and isonitrosoacetophenone, respectively. The structures of these new compounds were proposed on the basis of elemental analysis, 1H-NMR and IR data. The extraction abilities of these new compounds were also examined by the solid-liquid extraction of selected transition metal [ Ni(II), Cu(II), Co(II), Zn(II), Mn(II) and Cd(II)] ions.
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    Synthesis, characterization, and sorption properties of silica gel-immobilized Schiff base derivative
    (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2008) Gübbük, İlkay Hilal; Güp, Ramazan; Ersöz, Mustafa
    Silica gel was derivatized with benzophenone 4-aminobenzoylhydrazone(BAH), a Schiff base derivative, after silanization of silica by 3-chloropropyltrimethoxysilane (CPTS) by using a reported method. Characterization of the surface modification was confirmed through infrared spectroscopy, thermogravimetry, and elemental analysis. The immobilized surface was used for Cu(II), Ni(II), Zn(II), and Co(II) sorption from aqueous solutions. The influence of the amount of sorbent, ion concentration, pH, and temperature was investigated. The sorption data followed Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) isotherms. The mean sorption energy (E) of benzophenone 4-aminobenzoylhydrazone (BAH) immobilization onto silica get was calculated from D-R isotherms, indicating a chemical sorption mode for four cations. Thermodynamic parameters, i.e., Delta G, Delta S, and Delta H, were also calculated for the system. From these parameters, Delta H values were found to be endothermic: 27.0, 22.7, 32.6, and 34.6 kJ mol(-1) for Cu(II), Ni(II), Co(II), and Zn(II) metal ions, respectively. AS values were calculated to be positive for the sorption of the same sequence of divalent cations onto sorbent. Negative Delta G values indicated that the sorption process for these three metal ions onto immobilized silica gel is spontaneous. (C) 2008 Elsevier Inc. All rights reserved.