Browsing by Author "Karakas, Duran"
Now showing items 21-26 of 26
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Synthesis, characterization and antimicrobial studies of 2-{(E)-[(2-hydroxy-5-methylphenyl)imino]methyl}-4-[(E)-phenyldiazenyl] phenol as a novel azo-azomethine dye
Kose, Muhammet; Kurtoglu, Nurcan; Gumussu, Ozkan; Tutak, Mustafa; McKee, Vickie; Karakas, Duran; Kurtoglu, Mukerrem (ELSEVIER SCIENCE BV, 2013)A novel dye, 2-{(E)-[(2-hydroxy-5-methylphenyl)imino]methyl}-4-[(E)-phenyldiazenyl]phenol dye was synthesized by the condensation reaction of 2-hydroxy-5-[(E)-phenyldiazenyl]benzaldehyde with 2-amino-4-methylphenol in ... -
Synthesis, characterization and non-linear optical properties of two mononuclear Cu(II) complexes of 2,6-bis(1-butylbenzimidazol-2-yl)pyridine
Kose, Muhammet; Ceyhan, Gokhan; Karakas, Duran (TAYLOR & FRANCIS LTD, 2016)Two copper(II) complexes, [Cu(L)(N-3)(2)]MeOH and [Cu(L)(NCS)(2)]MeOH, were prepared and characterized by spectroscopic, analytical, and quantum chemical studies, where L is 2,6-bis(1-butylbenzimidazol-2-yl)pyridine. X-ray ... -
Theoretical investigation on the vibrational and electronic spectra of three isomeric forms of dicobalt octacarbonyl
Karakas, Duran; Kariper, Sultan Erkan (ELSEVIER SCIENCE BV, 2014)Three isomeric forms of dicobalt octacarbonyl, [Co-2(CO)(8)], with C-2v, D-3d and D-2d point group were optimized by using density functional theory (DFT/B3LYP) method with LANL2DZ basis set for the cobalt atoms and 6-31G(d) ... -
Theoretical spectroscopic study of seven zinc(II) complex with macrocyclic Schiff-base ligand
Sayin, Koray; Kariper, Sultan Erkan; Sayin, Tuba Alagoz; Karakas, Duran (PERGAMON-ELSEVIER SCIENCE LTD, 2014)Seven zinc complexes, which are [ZnL1](2+), [ZnL2](2+), [ZnL3](2+), [ZnL4](2+), [ZnL5](2+), [ZnL6](2+) and [ZnL7](2+), are studied as theoretically. Structural parameters, vibration frequencies, electronic absorption spectra ... -
Theoretical study on the antitumor properties of Ru(II) complexes containing 2-pyridyl, 2-pyridine-4-carboxylic acid ligands
Kariper, Sultan Erkan; Sayin, Koray; Karakas, Duran (ELSEVIER SCIENCE BV, 2017)[Ru(bipy)(2)(CppH)](2+) (1), [Ru(bipy)(2)(Cpp-NH-Hex-COOH)](2+) (2), [Ru(dppz)(2)(CppH)](2+) (3) and [Ru(dppz)(2)(Cpp-NH-Hex-COOH)](2+) (4) were calculated by Hartree-Fock (HF), Density Functional Theory (DFT) hybrid B3LYP ... -
Tribological behavior and quantum chemical calculations of protic ionic liquids: synthesis, spectroscopic, and thermal properties
Karadag, Ahmet; Akbas, Huseyin; Karakas, Duran; Tekin, Kadir Cihan; Korkmazer, Erdem (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2019)Protic ionic liquids (PILs) were synthesized through a stoichiometric neutralization reaction between 2,2'-(ethylenedioxy)-bis(ethylamine) {Edbea} and various acids (formic, acetic, boric, decanoic, and gentisic acid). The ...