Yazar "Unver, Yasemin" için listeleme
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1,2,4-triazole derivative with Schiff base; thiol-thione tautomerism, DFT study and antileishmanial activity
Suleymanoglu, Nevin; Ustabas, Resat; Direkel, Sahin; Alpaslan, Yelda Bingol; Unver, Yasemin (Elsevier, 2017)Thiol-thione tautomerism of 1,2,4-triazole derivative with Schiff base was investigated by spectro-scopic methods and quantum mechanical calculations. Theoretical study of thiol-thione tautomeric forms of 1,2,4-triazole ... -
1,2,4-triazole derivatives with morpholine; DFT study and antileishmanial activity
Suleymanoglu, Nevin; Ustabas, Resat; Direkel, Sahin; Alpaslan, Yelda Bingol; Unver, Yasemin (Canadian Science Publishing, Nrc Research Press, 2018)1,2,4-triazole derivatives with morpholine; 4-((3-methylthiophene-2-yl) methylenamino)-1-((4-(3-methylthiophene-2-yl) methylene amino)-1-(morpholinomethyl)-5-thioxo-4,5-dihydro-1H-1,2,4-triazole-3-yl) methyl)-3-(thiophen ... -
3,3 '-Bis(2-thienylmethyl)-4,4 '-(butane-1,4-diyl)bis(4,5-dihydro-1H-1,2,4-triazol-5-one)
Unver, Yasemin; Ustabas, Resat; Coruh, Ufuk; Sancak, Kemal; Vazquez-Lopez, Ezequiel M. (Int Union Crystallography, 2006)The title compound, C18H20N6O2S2, has a centre of symmetry. The thiophene ring makes an angle of 70.58 (6)degrees with the triazole ring. Molecules are linked via N-(HO)-O-... hydrogen bonds, forming a three-dimensional network. -
3,3 '-Diisopropyl-4,4 '-(hexane-1,6-diyl)bis-[1H-1,2,4-triazol-5(4H)-one] dihydrate
Koysal, Yavuz; Isik, Samil; Sancak, Kemal; Unver, Yasemin (Int Union Crystallography, 2006)The triazole molecule of the title dihydrate, C16H28N6O2.-2H(2)O, possesses a crystallographically imposed centre of symmetry and shows normal values of bond lengths and angles. The uncoordinated water molecules are involved ... -
4-(2-pyridylmethyleneamino)-3-(2-thienylmethyl)-1H-1,2,4-triazol-5(4H)-one
Yilmaz, Isil; Arslan, N. Burcu; Kazak, Canan; Sancak, Kemal; Unver, Yasemin (Blackwell Publishing, 2006)In the title compound, C13H11N5OS, molecules are linked into centrosymmetric dimers through intermolecular N-H center dot center dot center dot O hydrogen bonds. -
4-[(5-Nitrothiophen-2-ylmethylene)amino]5-(thiophen-2-ylmethyl)-1H-1,2,4-triazol-5(4H)-one
Ustabas, Resat; Coruh, Ufuk; Sancak, Kemal; Unver, Yasemin; Vazques-Lopez, Ezequiel M. (Int Union Crystallography, 2006)The title compound, C12H9N5O3S2, contains three planar rings. The triazole ring makes a dihedral angle of 3.88 (15)degrees with the nitrothiophene ring. Intra- and intermolecular hydrogen bonding is effective in stabilizing ... -
5-(4-Bromobenzyl)-4-(4-(5-phenyl-1,3,4-oxadiazole-2-yl)phenyl)-2,4-dihydro-3H-1,2,4-triazole-3-one: Synthesis, characterization, DFT study and antimicrobial activity
Ustabas, Resat; Suleymanoglu, Nevin; Unver, Yasemin; Direkel, Sahin (Elsevier, 2020)Since molecules containing 1,3,4-oxadiazoles and 1,2,4-triazole heterocyclic rings in their structures have important biological activities; 5-(4-Bromobenzyl)-4-(4-(5-phenyl-1,3,4-oxadiazole-2-yl)phenyl)-2,4-dihydro-3H-1 ... -
5-Benzyl-4-[3-(1H-imidazol-1-yl)propyl]-2H-1,2,4-triazol-3(4H)-ones: Synthesis, spectroscopic characterization, crystal structure and a comparison of theoretical and experimental IR results by DFT calculations
Unver, Yasemin; Sancak, Kemal; Tanak, Hasan; Degirmencioglu, Ismail; Dugdu, Esra; Er, Mustafa; Isik, Samil (Elsevier, 2009)The synthesis and structural properties of novel compounds, 5-Benzyl-4-[3-(1H-imidazol-1-yl)propyl]-2H-1,2,4-triazol-3(4H)-ones (3a-c) have been described. These products were obtained by the reaction of ethyl 2-[1-ethox ... -
Antileishmanial activity study and theoretical calculations for 4-amino-1,2,4-triazole derivatives
Suleymanoglu, Nevin; Unver, Yasemin; Ustabas, Resat; Direkel, Sahin; Alpaslan, Gokhan (Elsevier Science Bv, 2017)4-amino-1,2,4-triazole derivatives; 4-amino-1-((5-mercapto-1,3,4-oxadiazole-2-yl)methyl)-3-(thiophene-2-ylmethyl)-1H-1,2,4-triazole-5(4H)-one (1) and 4 -amino-1-((4-amino-5 mercapto-4H-1,2,4triazole-3-yl)rnethyl)-3-(thio ... -
Ethyl 4-(3-ethyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-4-yl)benzoate
Unver, Yasemin; Koysal, Yavuz; Tanak, Hasan; Unluer, Dilek; Isik, Samil (Int Union Crystallography, 2010)In the title compound, C13H15N3O3, the dihedral angle between the two aromatic ring is 51.06 (1)degrees. In the crystal, molecules are connected by pairs of N-H center dot center dot center dot O hydrogen bonds into ... -
An experimental and DFT computational study on 4-(3-(1H-imidazol-1-yl)propyl)-5-methyl-2H-1,2,4-triazol-3(4H)-one monohydrate
Tanak, Hasan; Koysal, Yavuz; Unver, Yasemin; Yavuz, Metin; Isik, Samil; Sancak, Kemal (Taylor & Francis Ltd, 2010)The triazole compound 4-(3-(1H-imidazol-1-yl)propyl)-5-methyl-2H-1,2,4-triazol-3(4H)-one monohydrate has been synthesised and characterised by H-1-NMR, C-13-NMR, IR, and X-ray single-crystal determination. The compound ... -
Experimental and DFT studies of ethyl N'-3-(1H-imidazol-1-yl) propylcarbamoyl benzohydrazonate monohydrate
Tanak, Hasan; Koysal, Yavuz; Unver, Yasemin; Yavuz, Metin; Isik, Samil; Sancak, Kemal (Springer/Plenum Publishers, 2009)The Imidazole compound, Ethyl N'-3-(1H-imidazol-1-yl) propylcarbamoyl benzohydrazonate monohydrate, has been synthesized and characterized by IR, NMR, electronic spectroscopy, and X-ray single-crystal determination. Molecular ... -
Experimental and theoretical studies of the molecular structure of 4-(3-(1H-imidazol-1-yl)propyl)-5-p-tolyl-2H-1,2,4-triazol-3(4H)-one
Ustabas, Resat; Suleymanoglu, Nevin; Tanak, Hasan; Alpaslan, Yelda Bingol; Unver, Yasemin; Sancak, Kemal (Elsevier, 2010)The triazol-imidazol compound, 4-(3-(1H-imidazol-1-yl)propyl)-5-p-tolyl-2H-1,2,4-triazol-3(4H)-one (3), (C15H17N5O), was prepared and characterized by H-1 NMR, C-13 NMR, IR and single-crystal X-ray diffraction. By using ... -
New Chalcone Derivative: Synthesis, Characterization, Computational Studies and Antioxidant Activity
Ustabas, Resat; Suleymanoglu, Nevin; Özdemir, Namık; Kahriman, Nuran; Bektas, Ersan; Unver, Yasemin (Bentham Science Publ Ltd, 2020)A new chalcone derivative, called as 1-(4-(benzylideneamino)phenyl)-3-(furan-2-yl)prop-2-en-1-one (I), was synthezised and characterized by spectral methods (infrared (IR) and proton and carbon-13 nuclear magnetic resonance ... -
Synthesis and characterisations of some new 2,4-dihydro-[1,2,4]-triazol-3-one derivatives and X-ray crystal structures of 4-(3-phenylallylideneamino)-5-thiophen-2-yl-methyl-2,4-dihydro-[1,2,4]triazol-3-one
Sancak, Kemal; Unver, Yasemin; Kazak, Canan; Dugdu, Esra; Arslan, Burcu (Scientific Technical Research Council Turkey-Tubitak, 2010)Compounds 2 were synthesised via the reaction of 4-amino-5-thiophen-2-yl-methyl-2,4-dihydro-[1,2,4]triazol- 3-one (1) with aldehydes. Compounds 3 and 4 were obtained from compounds 2 with bromo acetophenone and ethyl ... -
Synthesis and characterization of novel triazol compounds containing a thiophen ring as potential antifungal agents and the structure of 2-(2-hydroxy-2-p-tolyethyl)-5-(thiophen-2-ylmethyl)-4-(4H-1,2,4-triazol-4-yl)-2H-1,2,4-triazol-3(4H)-one
Unver, Yasemin; Dugdu, Esra; Sancak, Kemal; Er, Mustafa; Ustabas, Resat (Scientific Technical Research Council Turkey-Tubitak, 2010)A series of new 4-(3,5-disubstitue-4H-1,2,4-triazol-4-yl)-5-(thiophen-2-yl-methyl)-2H-1,2,4-triazol-3(4H)-ones (3a-c) were obtained by reaction N'-1-ethoxy-2-thiophen-2-yl-ethylydene hydrazino carboxylic acid ethyl ester ... -
Synthesis and Characterizations of Some New Triazol-3-one Derivatives.
Arslan, N. Burcu; Kazak, Canan; Unver, Yasemin; Sancak, Kemal (Int Union Crystallography, 2009)… -
The synthesis of some new imidazole and triazole derivatives: crystal Structure and DFT-TDDFT investigation on electronic structure
Sancak, Kemal; Unver, Yasemin; Tanak, Hasan; Degirmencioglu, Ismail; Dugdu, Esra; Er, Mustafa; Isyik, Samil (Springer, 2010)A series of new N'-3-(1H-imidazol-1-yl)propylcarbamoyl-4-halogenebenzo hydrazonate (3a-b) were obtained by reaction Ethyl 2-((4-halogene phenyl) (ethoxy) methylene) hydrazinecarboxylate (1) and N-(3-aminopropyl)imidazole ... -
Synthesis, crystal structure, and antioxidant properties of novel 1,2,4-triazol-5-ones containing 3,4-dimethoxyphenyl and 3,4-dihydroxyphenyl moiety
Unver, Yasemin; Meydanal, Sevgi; Sancak, Kemal; Unluer, Dilek; Ustabas, Resat; Dugdu, Esra (Scientific Technical Research Council Turkey-Tubitak, 2011)A series of new 4-(3,4-dimethoxyphenethyl)-5-akyl/aryl-2H-1,2,4-triazol-3(4H)-ones (3a-g) was obtained by the reaction of ethyl 2-(ethoxy)(alkylidene/arylidene) hydrazinecarboxylate (1) and 2-(3,4-dimethoxyphenyl) ethanamine ... -
Synthesis, spectroscopic characterization, calculational studies and in vitro antitumoral activity of 4-(3-(1H-imidazol-1-yl)propyl)-(thiophen-2-ylmethyl)-1H-1,2,4-triazol-5(4H)-one
Suleymanoglu, Nevin; Ustabas, Resat; Alpaslan, Yelda Bingol; Unver, Yasemin; Turan, Mustafa; Sancak, Kemal (Elsevier, 2011)4-(3-(1H-imidazol-1-yl)propyl)-(thiophen-2-ylmethyl)-1H-1.2,4-triazol-5(4H)-one (IPTT), C13H15N5OS, was synthesized and characterized by C-13 NMR, H-1 NMR, IR and single-crystal X-ray diffraction. The structure of IPTT is ...
