Güncel Gönderiler: FEF, Kimya Bölümü Koleksiyonu
Toplam kayıt 455, listelenen: 221-240
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Microwave-assisted synthesis and characterization of phthalocyanines substituted with azo compound containing eugenol moiety
(Elsevier, 2011)The new metallophthalocyanines (Co, Ni, Cu, and Zn) substituted with azo compound containing eugenol moiety are described. Firstly, azo compound (I) containing eugenol moiety was synthesized by treating eugenol with ... -
Synthesis and spectroscopic studies of homo-binuclear, alkoxo bridged homo- and hetero-tetranuclear metal complexes of a bis-N 2O 4 Schiff base ligand derived from ethanolamine and macroacyclic tetranaphthaldehyde
(Elsevier, 2011)Three new homo-binuclear Ni(II), Cu(II), Zn(II) complexes (2-4), homo-tetranuclear Cu(II) complex (5), and hetero-tetranuclear Cu(II)-Ni(II) complex (6) of a macroacyclic potentially bis-hexadentate N 2O 4 Schiff base have ... -
The molecular aggregation of pyronin y in natural bentonite clay suspension
(Elsevier, 2011)The molecular aggregation and spectroscopic properties of Pyronin Y (PyY) in the suspension containing natural bentonite clay were studied using molecular absorption, steady-state and time-resolved fluorescence spectroscopy ... -
Silorane-based composite: Depth of cure, surface hardness, degree of conversion, and cervical microleakage in class II cavities
(Wiley, 2011)Objective: The purpose of this study was to determine the depth of cure, degree of conversion (DC), hardness, and cervical sealing ability of silorane-based composite (Filtek Silorane [FS; 3M, Seefeld, Germany]) and to ... -
Structural analysis of naproxen-intercalated bentonite (Unye)
(Elsevier, 2011)The difference in the basal spacing (8.79Å) and a higher mass loss (6.2%) in the temperature range of 200-750°C of naproxen-bentonite (N-bentonite) comparing to that of Unye bentonite (UB) signified the existence of thermally ... -
Determination of the pKa of Some triazole derivatives by the potentiometric method in dioxan-water mixtures
(2011)Stoichiometric protonation constants of some 3-alkyl(aryl)-4-(substituted benzylamino)-4,5-dihydro-1 H-1,2,4-triazol-5-ones derivatives were determined potentiometrically in 50% (v/v) dioxan-water mixtures at 25°C with an ... -
Synthesis, photophysical and photochemical properties of highly soluble phthalocyanines substituted with four 3,5-dimethylpyrazole-1-methoxy groups
(Elsevier, 2011)The synthesis and characterization of new peripherally tetra-3,5- dimethylpyrazole-1-methoxy substituted metal-free (4), zinc (5), nickel (6), cobalt (7), copper (8) and lead (9) phthalocyanines are described for the first ... -
Electrochemical preparation of poly(vinylferrocenium)-perchlorate- polyaniline composite-modified platinium electrode in methylene chloride
(2011)A new surface based on poly(vinylferrocenium)perchlorate-polyaniline (PVF +ClO 4 --PANI) composite-modified platinum electrode was prepared electrochemically to combine the electrocatalytic properties of an intrinsically ... -
Synthesis, crystal structure, magnetic, thermal and fluorescent properties of [Co(H2O)4(nia)2](suc)·(H 2suc)
(Verlag der Zeitschrift fur Naturforschung, 2010)A new cobalt(II) complex, [Co(H2O)4(nia) 2](suc)·(H2suc) [nicotinamide = nia, succinate = suc2-], has been synthesized and characterized by elemental analysis, IR, TG-DTA and single-crystal X-ray diffraction. It contains ... -
Cloning, expression and characterization of alkaline phosphatase from a thermophilic bacterium Geobacillus caldoxylosilyticus TK4
(Turkish Biochemistry Society, 2010)Aim: To clone the gene for alkaline phosphatase (AP) from a novel thermophilic Geobacillus caldoxylosilyticus TK4 strain and to express and characterize this enzyme. Methods: The gene was cloned into pET28a(+) vector and ... -
Synthesis of novel tetrahydrofuran-epichlorohydrin [Poly(THF-b-ECH)] macromonomeric peroxy initiators by cationic copolymerization and the quantum chemically investigation of initiation system effects
(Wiley, 2010)Cationic polymerization of tetrahydrofuran (THF) and epichlorohydrin (ECH) was performed with peroxy initiators synthesized from bis (4,4?- bromomethyl benzoyl peroxide (BBP) or bromomethyl benzoyl t-butyl peroxy ester ... -
Cloning, expression and characterization of xylose isomerase from thermophilic Geobacillus caldoxylosilyticus TK4 strain
(Turkish Biochemistry Society, 2011)Aim: To clone the gene of Xylose isomerase (XyI) from thermophilic Geobacillus cal-doxylosilyticus TK4 strain and to express and characterize this enzyme. Methods: XyI gene of Geobacillus caldoxylolyticus was cloned into ... -
Nutritional value of some wild edible mushrooms from Black Sea Region (Turkey)
(Turkish Biochemistry Society, 2011)Objectives: The aim of this study is to profile the nutritional content of eight edible mushrooms collected from East Black Sea region in Turkey. Methods: The eight different wild edible mushrooms (Boletopsis leucomelaena, ... -
Effect of microwave irradiation on the synthesis of 1,2,4-triazol-3-one derivatives and their antimicrobial activities
(Science Reviews 2000 Ltd, 2012)An easy efficient method for the synthesis of N-(3,5-dichlorophenyl)-5-alkyl/aryl-3H-1,2,4-triazol-3-one derivatives under microwave irradiation has been developed using the reaction of 3,5-dichloroaniline and ethoxycarb ... -
Microwave-assisted synthesis of some 1H-1,2,4-triazol-3-one derivatives
(Bureau Scientific Publ, 2013)4-Amino-5-(methyl/ethyl)-2,4-dihydro-3H-1,2,4-triazol-3-one were synthesized from the reaction of (methyl/ethyl)-ester ethoxycarbonyl hydrazone with hydrazine hydrate and then, converted to corresponding Schiff bases using ... -
Adsorption of ammonium (NH4+) from aqueous solution by Unye bentonite
(Foundation Environmental Protection & Research-Fepr, 2013)In this study, ammonium (NH4+) removal from aqueous media was investigated by using bentonit clay. Different concentrations of ammonium ion adsorption from aqueous solutions were examined at a room temperature. Adsorption ... -
Microwave-assisted synthesis of some 5(6)-nitro-1h-benzimidazoles and their hydrazide derivatives
(Chem Soc Ethiopia, 2013)A series of 5(6)-nitro-1H-benzimidazole and their hydrazide derivatives were synthesized starting from iminoester hydrochloride and 4-nitro-o-phenylenediamine under microwave irradiation. the structure of all synthesized ... -
Covalent grafting of pyridine-2-methanol into kaolinite layers
(Elsevier, 2013)A novel hybrid organic-clay material was prepared by grafting of pyridine-2-methanol in the interlayer space of kaolinite by using a kaolinite/methanol compound as an intermediate. A kaolinite/methanol compound was obtained ... -
Efficient microwave assisted synthesis of some new benzimidazoles containing the mebendazole nucleus
(Science Reviews 2000 Ltd, 2013)A simple and practical method has been developed for the synthesis of benzimidazoles containing the biological active mebendazole nucleus. Iminoester hydrochlorides of phenylacetic acids were used as intermediates in the ... -
Solvent-free synthesis of novel phthalocyanines containing triazole derivatives under microwave irradiation
(Pergamon-Elsevier Science Ltd, 2013)An efficient microwave processing method has been developed for the synthesis of novel metal-free phthalocyanine and metallophthalocyanines containing 1,2,4-triazole-3-one derivatives under microwave irradiation in ...
