Yazar "Sekerci, M" seçeneğine göre listele

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    Electrical and optical properties of inorganic complexes C36H76N2O9ClNa and C14H12N2O4TeBr2
    (Editions Scientifiques Medicales Elsevier, 2001) Aydogdu, Y; Yakuphanoglu, F; Aydogdu, A; Temel, H; Sekerci, M; Hosgoren, H
    The electrical properties of some inorganic samples were studied as functions of temperature and the results were analyzed. These samples activation energies were calculated from the electrical conductivity measurements. Also, a detailed study of optical absorption is presented. The optical absorption spectra are measured in the UV+invisible wavelength range 200-1100 nm. The absorption coefficient and value optical energy gaps were determined from the absorption spectra. The complex C36H76N2O9ClNa is characterized by direct optical absorption with an optical edge at 4.49 eV. However, the complex C14H12N2O4TeBr2 is characterized by indirect optical absorption with an optical edge at 1.45 eV, and a nearby direct one at hv = 1.80 eV. (C) 2001 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
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    Novel complexes of manganese(III), cobalt(II), copper(II), and zinc(II) with Schiff base derived from 1,2-bis(p-aminophenoxy)ethane and salicylaldehyde
    (Marcel Dekker Inc, 2001) Temel, H; Sekerci, M
    Several new complexes of the Schiff base obtained by the condensation of 1,2-bis(p-aminophenoxy)ethane with salicylaldehyde were synthesized. The complexes have been characterized by elemental analyses, magnetic measurements, H-1 NMR, UV-VIS and IR spectra. The ligand is coordinated to the central metal as a tetradentade ONNO ligand. The four bonding sites are the azomethine nitrogen and the o-OH groups.
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    Preparation of new o-carboxyanilinotellurium(IV) bromides and their dyeing properties
    (Marcel Dekker Inc, 2001) Topal, G; Temel, H; Yavuz, Ö; Coskun, M; Sekerci, M
    This study represents a new synthesis of two organotellurium compounds and their dyeing properties. The structure of these tellurium derivatives are proposed based on elemental analyses, IR, UV-Vis, H-1 and C-13 NMR spectra and thermogravimetric analyses (TGA).
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    Spectral and antifungal studies of transition metal complexes of N,N?-ethylenebis(salicylideneimine)
    (Maik Nauka/Interperiodica/Springer, 2004) Temel, H; Taskin, T; Sekerci, M
    Mixed ligand Schiff base complexes of Ti(IV), Co(11), Ni(II) and Cu(II) derived from salicylaldehyde and 1,2-diaminoethane have been synthesized and their spectral studies carried out. The complexes have been characterized by elemental analysis, molar conductivities, magnetic measurements, H-1 NMR, UV, visible and IR-spectra. The antifungal effects of the mixed ligand Schiff base complexes of Ni(II), Cu(II) and Ti(IV) on Fusarium oxysporum ssp. melonis and Alternaria sp. were investigated. Antifungal effects on pathogen fungi have been observed with each complex in the study. The complexes inhibited fungi growth at a 66.7 mug/ml concentration of Ni(II) complex, and at a 133.3 mum/ml concentration of Cu(II) and Ti(IV) complexes.
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    Synthesis and characterization of a new bidentate Schiff base and its transition metal complexes
    (Taylor & Francis Inc, 2002) Temel, H; Ilhan, S; Sekerci, M
    The new bidentate Schiff base ligand L was synthesized by treating cinnamaldehyde with 1,2-bis(p-aminophenoxy)ethane. The complexes of Cu(II), Ni(II), Zn(II) and Mn(II) with the Schiff base have been characterized by magnetic susceptibility, conductance measurements, elemental analyses, IR, UV-Vis, H-1 and C-13 NMR studies. The analytical, conductance, spectral and magnetic data support the mononuclear formulations of these complexes with M:L = 1:2. In addition there are two hydroxo ligands present.
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    The synthesis and spectral characterization of new Cu(II), Ni(II), Co(III), and Zn(II) complexes with Schiff base
    (Taylor & Francis Inc, 2002) Temel, H; Ilhan, S; Sekerci, M; Ziyadanogullari, R
    Cu(II), Ni(II), Co(III) and Zn(II) complexes with Schiff base have been prepared. Ligand is derived from condensation of 1,2-bis(p-aminophenoxy)ethane and 2-hydroxynaphthalin-1-carbaldehyde. The complexes have been characterized by elemental analyses, Lambda(M), IR, UV-VIS, H-1 NMR, C-13 NMR and magnetic measurements. The ligand is coordinated to the central metal as a tetradentade ONNO ligand. The four bonding sites are the azomethine nitrogen and aldehydic-OH groups.
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    The synthesis, characterization and conductance studies of new Cu(II), Ni(II) and Zn(II) complexes with the Schiff base derived from 1,2-bis-(o-aminophenoxy)ethane and salicylaldehyde
    (Taylor & Francis Ltd, 2003) Temel, H; Çakir, Ü; Ugras, HI; Sekerci, M
    Cu(II), Ni(II) and Zn(II) complexes with the Schiff base derived from 1,2-bis-(omicron-aminophenoxy)ethane with salicylaidehyde have been prepared. The complexes have been characterized by elemental analysis, magnetic measurements, H-1 NMR, C NMR, UV, visible and IR spectra as well as conductance measurements. The ligand is coordinated to the central metal as a tetradentate ONNO ligand. The four bonding sites are the central azomethine nitrogen and aldehydic OH groups. The ligand was used for complexation studies. Stability constants were measured by a conductometric method. Furthermore, the stability constants for complexation between ZnCl2 and Cu(NO3)(2) salts and N,N'-bis(salicylidene)-1,2-bis-(omicron-aminophenoxy)-ethane (H2L) in 80% dioxane/water and pure methanol were determined from conductance measurements. The magnitudes of these ion association constants are related to the nature of the solvation of the cation and the complexed cation. The mobilities of the complexes are also dependent, in part, upon solvation effects.