Yazar "Ucun, F" için listeleme
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Complexation of metal ions with 3,5-di-tert-butyl-1,2-benzoquinone-1-monooxime, ESR studies of radical intermediates
Kasumov, VT; Tas, E; Kartal, I; Ucun, F; Koksal, F; Cukurovali, A (Gordon Breach Sci Publ Ltd, 2001)The possibility of chelate formation of 3,5-di-tert-butyl-o-benzoquinone-1-monooxime with Cu(II), Co(II), Ni(II), Mn(II), Pd(II) metal ions under N-2 and in air have been investigated. It was found that complexation of ... -
Electron paramagnetic resonance and infrared study of type 5A zeolite reacted with SO2 and CO2
In this work an electron paramagnetic resonance (EPR) and infrared (IR) study was made on molecular sieve type 5A zeolite reacted with SO2 and CO2 gases. The observed EPR signal from the SO2 reacted sample was attributed ... -
Electron paramagnetic resonance of Cu-2+ in Cd(NH4)(2)(SO4)(2)center dot 6H2O
The electron paramagnetic resonance spectra of Cu2+ in Cd(NH4)(2)(SO4)(2) . 6H(2)O powder and single crystals have been recorded at 300 K and 113 K; The angular variation of the spectra indicated the substitution of the ... -
Electron paramagnetic resonance of gamma irradiation damage centres in L-valine and L-leucine methyl ester hydrochlorides
The EPR spectra of gamma-irradiated powders of L-valine and L-leucine methyl ester hydrochlorides indicated the existence of the [Me(2)C over dot CHNH(3)COOMe]Cl radical in the former and of the [Me(2)C over dot ... -
Electron paramagnetic resonance of gamma-irradiated single crystals of two isobutyric acid derivatives
Osmanoglu, S; Koksal, F; Kartal, I; Ucun, F (Pergamon-Elsevier Science Ltd, 1997)The electron paramagnetic resonance spectra of gamma-irradiated alpha-hydroxy isobutyric acid, (CH3)(2)C(OH)COOH and alpha-amino isobutyric acid hydrochloride, (CH3)(2) C(NH2)COOH . HCl, single crystals and powders were ... -
EPR of gamma irradiated N alpha-acetyl L-glutamic acid and N alpha-acetyl L-glutamine
Koksal, F; Osmanoglu, S; Kartal, I; Ucun, F (Pergamon-Elsevier Science Ltd, 1997)Single crystals of N alpha-acetyl L-glutamic acid and N alpha-acetyl L-glutamine were gamma-irradiated and the paramagnetic species formed were investigated at room temperature by electron spin resonance technique. The ... -
EPR of O-2(-) radicals in the zeolites NH4NaY and NH(4)CaA
Activated and non-activated states of the zeolites NH4NaY and NH(4)CaA, and their NH; forms were prepared with an (NH4)(2)SO4 solution and were investigated by EPR after gamma-irradiation. The formed radicals were attributed ... -
EPR of powder copper phthalocyaninate substituted with eight tetraazamacrocycles and its nonanuclear Ni2+, Co2+, Zn2+ and Cu2+ complexes
Variations of the electron paramagnetic resonance parameters of the copper phthalocyaninates due to the paramagnetic and diamagnetic metal ions substituted into the outer cells of eight 12-membered tetraazamacrocycles are ... -
EPR study of Cr5+ and Cu2+ in some zeolites introduced by solid- and liquid-state reactions
This study reports on the EPR of Cr5+ and Cu2+ ions, introduced by solid- and liquid-state reactions with the synthetic zeolites 3A, 4A and 5A, and the natural zeolite clinoptilolite. Cr3+ was oxidized to Cr5+ in the ... -
An EPR study of Mo5+ introduced into NaY zeolites by solid-state reactions
Ucun, F; Saglam, A; Koksal, F; Bahceli, S (Verlag Z Naturforsch, 1999)By means of an EPR investigation of Mo5+ ions introduced into NaY zeolites by solid-state reactions, the location and coordination of Mo5+ in zeolites were investigated. Two different locations, free and distorted tetrahedral, ... -
An EPR study on VO2+ and Mn2+ ions in some zeolites
The electron paramagnetic resonance (EPR) of hydrated VOSO4 . 3H(2)O and MnCl2 . 2H(2)O, adsorbed on the synthetic zeolites 3A, 4A, 5A and 13X of pore diameters 0.3, 0.4, 0.5, and 1.0 nm, respectively, and the natural ... -
Synthesis, spectroscopic characterization and redox reactivity of some new N-(2,6-di-tert-butyl-1-hydroxyphenyl) salicylaldimines
Kasumov, VT; Ucun, F; Kartal, I; Koksal, F (Marcel Dekker Inc, 1999)New substituted N- (2,6-Di-tert-butyl-1-hydroxyphenyl) Salicylaldimines (LxH) were prepared by the condensation of various hydroxy and methoxy salicylaldehyde derivatives and 2,6-Di-tert-butyl-4-aminophenol and characterized ...
