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Crystal structure and DFT computational studies of (E)-2,4-di-tert-butyl-6-{[3-(trifluoromethyl)benzyl]-iminomethyl}phenol 

Kaynar, Nihal Kan; Tanak, Hasan; Macit, Mustafa; Özdemir, Namık (Int Union Crystallography, 2020)
The title compound, C23H28F3NO, is an ortho-hydroxy Schiff base compound, which adopts the enol-imine tautomeric form in the solid state. The molecular structure is not planar and the dihedral angle between the planes of ...

Structural and Spectroscopic Characterization of N-(2-Amino-4,5-Dichlorophenyl)-N-(Phenylsulfonyl)Benzenesulfonamide: a Joint Experimental and Quantum Chemical Study 

Özdemir, Namık; Dayan, Osman (Springer, 2019)
The new sulfonamide compound (C18H14Cl2N2O4S2) has been isolated from the reaction of 4,5-dichloro-1,2-diaminobenzen and benzensulfonyl chloride in the presence triethylamine in THF. X-ray diffraction, Hirshfeld surface ...

Synthesis, DFT computations and antimicrobial activity of a Schiff base derived from 2-hydroxynaphthaldehyde: Remarkable solvent effect 

Tercan, Melek; Özdemir, Namık; Ozdemir, Fethi Ahmet; Serbetci, Zafer; Erdener, Digdem; Cetinkaya, Bekir; Dayan, Osman (Elsevier, 2020)
A new Schiff base bearing sulfonamide group was synthesized and characterized by spectroscopic techniques. Its spectroscopic properties were investigated through density functional theory (DFT/B3LYP) method with the ...

Synthesis of a new heterocyclic Schiff base ligand "(E)-5-benzoyl-4-phenyl-1-((pyridin-2-ylmethylene) amino) pyrimidin-2(1H)-one": An experimental and computational modeling study 

Ozdemir, Mecit; Sonmez, Mehmet; Sen, Fatih; Dinçer, Muharrem; Özdemir, Namık (Elsevier Science Bv, 2017)
In this study, a new heterocyclic Schiff base has been synthesized and characterized using FT-IR, NMR (H-1 NMR, C-13 NMR), UV-Vis, Mass spectroscopies and single-crystal X-ray diffraction method. The molecular geometry ...

Theoretical investigation of thione-thiol tautomerism, intermolecular double proton transfer reaction and hydrogen bonding interactions in 4-ethyl-5-(2-hydroxyphenyl)-2H-1,2,4-triazole-3(4H)-thione 

Özdemir, Namık; Turkpence, Deniz (Elsevier, 2013)
The thione-thiol tautomerism and intermolecular double proton transfer reaction for the title triazole compound were studied at the B3LYP level of theory using 6-311++G(d,p) basis function. The solvent effect on the proton ...

Quantum chemical study of tautomerism in 2-[(4-phenylthiazol-2-yl)hydrazonomethyl] phenol 

Özdemir, Namık (Elsevier Science Bv, 2016)
The relative stabilities of five tautomers of 2-[(4-phenylthiazol-2-yl)hydrazonomethyl]phenol were calculated at the B3LYP/6-311+G(d,p) and MP2/6-311+G(d,p) levels of theory. The possible tautomeric transformations were ...

Theoretical and experimental investigation of 4-[(2-hydroxy-3-methylbenzylidene)amino]benzenesulfonamide: Structural and spectroscopic properties, NBO, NLO and NPA analysis 

Ceylan, Umit; Durgun, Mustafa; Turkmen, Hasan; Yalcin, Serife Pinar; Kilic, Ahmet; Özdemir, Namık (Elsevier Science Bv, 2015)
The sulfonamide compound, 4[(2-hydroxy-3-methylbenzylidene)amino]benzenesulfonamide was synthesized and grown as a high quality single crystal by the slow evaporation solution growth technique. The structure of the compound ...

Molecular structure, spectroscopic characterization and DFT calculations of a novel (Z)-1-[(2-Ethylphenylamino)methylene]naphthalene-2(1H)-one 

Alpaslan, Yelda Bingol; Gokce, Halil; Macit, Mustafa; Alpaslan, Gokhan; Özdemir, Namık (Elsevier, 2015)
A novel Schiff base compound (Z)-1-[(2-Ethylphenylamino)methylene]naphthalene-2(1H)-one was synthesized from the reaction of 2-hydroxy-1-naphthaldehyde with 2-ethylaniline. The structural properties of the compound have ...

Direct and solvent-assisted thione-thiol tautomerism in 5-(thiophen-2-yl)-1,3,4-oxadiazole-2(3H)-thione: Experimental and molecular modeling study 

Arslan, N. Burcu; Özdemir, Namık; Dayan, Osman; Dege, Necmi; Koparir, Metin; Koparir, Pelin; Muglu, Halit (Elsevier, 2014)
The compound has been synthesized and characterized by IR, NMR and X-ray diffraction. Quantum chemical calculations at B3LYP/6-311++G(d,p) level were performed to study the molecular and spectroscopic properties, conformational ...

Direct and solvent-assisted keto-enol tautomerism and hydrogen-bonding interactions in 4-(m-chlorobenzylamino)-3-phenyl-4,5-dihydro-1H-1,2,4-triazol-5-one: a quantum-chemical study 

Arslan, N. Burcu; Özdemir, Namık (Springer, 2015)
The tautomeric equilibrium of the title triazole compound was computationally analyzed at the B3LYP/6-311++G(d,p) and MP2/6-311++G(d, p) levels of theory. The solvent effect was considered for three solvents (chloroform, ...
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