Yazar "Koksal, Fevzi" için listeleme
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Crystal structure and EPR studies of doped Cu2+ ion in [Zn(sac)(2)(en)(2)] single crystal
Karabulut, Buenyamin; Ucar, Ibrahim; Koksal, Fevzi; Yerli, Yusuf (Pergamon-Elsevier Science Ltd, 2010)The tran-bis(ethylenediamine)bis(saccharinato)Zinc(II), (Zn(sac)(2)(en)(2)] (ZSED), (en: ethylenediamine and sac: saccharinate) complex has been synthesized and its crystal structure has been determined by X-ray diffraction ... -
Electron paramagnetic resonance of organic and inorganic centers in gamma-irradiated natural sepiolite minerals
Koseoglu, Rahmi; Koksal, Fevzi; Akkurt, Mehmet; Ciftci, Emin (Walter De Gruyter Gmbh, 2006)Natural sepiolite minerals and their gamma-irradiated forms were investigated by electron paramagnetic resonance (EPR) at room temperature and at 113 K. The EPR signals in powders of natural sepiolite were observed due to ... -
EPR Spectra of Some Cu2+-Doped Metal Carbonates and Disorder Phase Transition in K3H(CO3)(2)
Demir, Dilek; Koksal, Fevzi; Kazak, Canan; Koseoglu, Rahmi (Verlag Z Naturforsch, 2009)Cu2+-doped K3H(CO3)(2), Rb2CO3, and Rb2KH(CO3)(2) single crystals were investigated by electron paramagnetic resonance (EPR) spectroscopy. The EPR spectrum of K3H(CO3)(2) indicates two different sites for Cu2+ at room and ... -
EPR study of gamma-irradiated Na2S2O3 center dot 5H(2)O single crystals
Yildirim, Ilkay; Karabulut, Buenyamin; Bozkurt, Esat; Koksal, Fevzi (Pergamon-Elsevier Science Ltd, 2009)EPR study of gamma-irradiated sodium thiosulfate pentallydrate single crystals has been carried out at room temperature, The title compound crystallizes in monoclinic system with the unit cell parameters, a = 5.94 angstrom, ... -
Phase transition in Cu2+-doped RbH2 PO4 as observed by EPR
Demir, Dilek; Koksal, Fevzi; Koseoglu, Rahmi (Taylor & Francis Ltd, 2009)The electron paramagnetic resonance (EPR) spectra of Cu2+-doped RbH2 PO4 at elevated temperatures indicate a phase transition at 358K. The EPR-silent state at this temperature is attributed to a so-called polymeric phase ... -
Spectroscopic and electron-transfer reactivity studies of bulky bis(N-cycloalky1-3,5-Bu-t(2)-salicylaldiminato)copper(II) complexes: Generation of uncoordinated and coordinated phenoxyl radicals
Kasumov, Veli T.; Koksal, Fevzi; Kutluay, Ayseguel (Pergamon-Elsevier Science Ltd, 2010)This work summarizes the results of our studies on the spectral, magnetic, electrochemical and chemical redox properties of N-cycloalkyl-3,5-Bu-t(2)-salicylaldimine ligands [cycloalkyl = cyclo-C5H9(HL1), cyclo-C6H11 (HL2), ... -
Synthesis, ESR, UV-Visible and reactivity studies of new bis(N-dimethoxyaniline-3,5-Bu-t(2)-salicylaldiminato)copper(II) complexes
Kasumov, Veli T.; Koksal, Fevzi (Pergamon-Elsevier Science Ltd, 2012)Several new copper(II) complexes (4-6) with N-dimethoxyphenyl-3,5-Bu-t(2)-salicylaldimine ligands abbreviated as N-R-3,5-DTBS, where R = 2,4-dimethoxyphenyl (1), 2,5-dimethoxyphenyl (2) and 3,5-dimethoxyphenyl (3) have ...