Yazar "Güven, Alaattin" için Fen Fakültesi listeleme
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The acidities of some indoles
Hür, Deniz; Güven, Alaattin (Elsevier Science BV, 2002)We wish to present an experimental and theoretical study for the estimation of pK(a) values of some 1-, 2- and 1,2-substituted indoles in aqueous solution by spectroscopic and semiempirical methods. The all possible ... -
Complete analysis of the H-1 and C-13 NMR spectra of diastereomeric mixtures of (R,S- and S,S-)-3,6-dimethoxy-2,5-dihydropyrazine-substituted indoles and their conformational preference in solution
Akhmedov, Novruz G.; Dacko, Christopher A.; Güven, Alaattin; Soderberg, Bjorn C. G. (Wiley-Blackwell, 2010)Complete analysis of the H-1 and C-13 NMR spectra obtained with and without a chemical shift reagent (Eu(fod)(3)), of bis-lactim ether 1 (Schollkopf auxiliary) and monosubstituted 3- or 2-{(2R,5S or 2S,5S)-5-isopropyl-3, ... -
Decolorization of Textile Azo-metal Complex Dyes by a Halophilic Bacterium Isolated from Camalti Saltern in Turkey
Demirci, Armagan; Mutlu, Mehmet Burçin; Güven, Alaattin; Korcan, Elif; Güven, Kıymet (Wiley, 2011)The decolorization of some of azo-metal complex dyes used in textile industry was investigated in this study. The halophilic prokaryotes isolated from a solar sea-saltern (Camalti) in Turkey were screened for resistance ... -
gNMR simulated H-1 and proton-coupled C-13 NMR spectra of substituted 3-nitropyridines. GIAO/DFT calculated values of proton and carbon chemical shifts and coupling constants
Katritzky, Alan R.; Akhmedov, Novruz G.; Güven, Alaattin; Doskocz, J; Akhmedova, RG; Majumder, S; Hall, CD (Elsevier Science BV, 2006)The magnitude of one bond and long-range coupling constants in 3-nitropyridine 1 and its derivatives 2-16 were determined from the proton-coupled C-13 NMR spectra in CDCl3. The GIAO/DFT (Density Functional Theory/Gauge ... -
Hydrogen bonding and dimeric self-association of 2-pyrrolidinone: An ab initio study
Yekeler, H; Güven, Alaattin; Özkan, R (Kluwer Academic Publ, 1999)Ab initio calculations on the different associated structures of 2-pyrrolidinone with water and with itself were carried out using 3-21G and 6-31G(*) basis sets at the Hartree-Fock level, including electron correlation ... -
Lead Biosorption By a Moderately Halophile Penicillium Sp. Isolated From Çamalti Saltern in Turkey
Ağır metallerin farklı organizmalarla biyosorbsiyonunun önemi sebebiyle Çamaltı tuzlasından izole edilen tuza toleranslı (halotolerant) fungusun biyosorbsiyon potansiyeli bu çalışma ile ilk kez araştırılmıştır. Penicillium ... -
NMR spectra, GIA and charge density calculations of five-membered aromatic heterocycles
Katritzky, Alan R.; Akhmedov, Novruz G.; Doskocz, Jacek; Mohapatra, Prabhu P.; Hall, C. Dennis; Güven, Alaattin (Wiley-Blackwell, 2007)The B3LYP/6-31+G(d) molecular geometry optimized structures of 17 five-membered heterocycles were employed together with the gauge including atomic orbitals (GIAO) density functional theory (DFT) method at the B3LYP/6-31+G(d,p), ... -
One-bond and long-range coupling constants of substituted 2-cyanopyridines. GIAO/DFT calculations of proton and carbon chemical shifts and coupling constants
Katritzky, Alan R.; Akhmedov, Novruz G.; Güven, Alaattin; Scriven, EFV; Majumder, S; Akhmedova, RG; Hall, CD (Elsevier Science BV, 2006)The magnitude of one bond and long-range coupling constants ((n)J(HH) and (n)J(CH)) in isomeric cyanopyridines-(1, 2, 3), methyl-(4, 5, 6, 7), 3-ethyl-(8), chloro-(9), 3-bromo-(10), acetyl-(11, 12), 5-ethoxycarbonyl-(13) ... -
Oxygen bridged Homobinuclear Mn(II) compounds with Anthranilic acid: Theoretical calculations, oxidation and catalase activity
Su, Esra; Güven, Alaattin; Kani, İbrahim (Wiley, 2018)Two new homobinuclear manganese compounds with mixed ligands, [Mn-2((1,1)-2-NH2C6H4COO)(2)(phen)(4)](ClO4)2(CH3OH) (1), and [Mn-2((1,3)-2-NH2C6H4COO)(2)(bipy)(4)](ClO4)2 (2) (NH2C6H4COOH=anthranilic acid, bipy=2,2-bipyridine, ... -
Synthesis and antimicrobial investigation of some 5H-pyridazino[4,5-b] indoles
Avan, İlker; Güven, Alaattin; Güven, Kıymet (2013)Synthesis and in vitro antimicrobial activities are reported for a series of 1,3,5-substituted 4-oxo-3,4-dihydro- 5H -pyridazino[4,5- b]indole derivatives. Corresponding pyridazino[4,5- b]indoles were prepared from ethyl ... -
Synthesis and antimicrobial investigation of some 5H-pyridazino[4,5-b]indoles
Avan, İlker; Güven, Alaattin; Güven, Kıymet (Scientific Technical Research Council Turkey-Tubitak, 2013)Synthesis and in vitro antimicrobial activities are reported for a series of 1,3,5-substituted 4-oxo-3,4-dihydro-5H-pyridazino[4,5-b]indole derivatives. Corresponding pyridazino[4,5-b]indoles were prepared from ethyl ...