Yazar "Sancak, Kemal" için listeleme
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1-(Acetonyl)-3-(2-thienylmethyl)-4-(4H-1,2,4-triazol-4-yl)-1H-1,2,4-triazol-5(4H)-one
Ustabas, Resat; Coruh, Ufuk; Sancak, Kemal; Demirkan, Esra; Vazquez-Lopez, Ezequiel M. (Int Union Crystallography, 2007)… -
1-(benzoylmethyl)-4-[(2,4-dichlorobenzylidene)amino]-3-(2-thienylmethyl)4,5-dihydro-1H-1,2,4-triazol-5-one
Ustabas, Resat; Coruh, Ufuk; Sancak, Kemal; Uenver, Yasemin; Vazquez-Lopez, Ezequiel M. (Int Union Crystallography, 2007)The thiophene ring of the title compound, C22H16Cl2N4O2S, is disordered over two positions, corresponding to rotation of approximately 180 degrees about the single C-C bond, with occupancies approximately in a 4:1 ratio. ... -
1-acetonyl-4-(2,5-dimethyl-4H-1,2,4-triazol-4-yl)-3-(2-thienylmethyl)-1H-1,2,4-triazol-5(4H)-one
Ustabas, Resat; Coruh, Ufuk; Sancak, Kemal; Demirkan, Esra (Wiley-Blackwell, 2007)The thiophene ring of the title compound, C14H16N6O2S, is disordered over two positions, with a site-occupancy ratio of approximately 5:4, corresponding to rotation of approximately 180 degrees about the single C-C bond. ... -
1-acetonyl-4-(3,5-diethyl-4H-1,2,4-triazol-4-yl)-3-(2-thienylmethyl)-1H-1,2,4-triazol-5(4H)-one
Ustabas, Resat; Coruh, Ufuk; Sancak, Kemal; Dugdu, Esra; Vazquez-Lopez, Ezequiel M. (Int Union Crystallography, 2006)The title compound, C16H20N6O2S, has two similar independent molecules in the asymmetric unit, with planar triazole and thiophene rings. Intermolecular C-H center dot center dot center dot N and C-H center dot center dot ... -
2-Benzoylmethyl-4-[(2-benzylideneethylidene)amino]-5-(2-thienylmethyl)-2H-1,2,4-triazol-3(4H)-one
Ustabas, Resat; Uenver, Yasemin; Suleymanoglu, Nevin; Coruh, Ufuk; Sancak, Kemal (Int Union Crystallography, 2009)In the molecule of the title compound, C24H20N4O2S, the dihedral angle between the triazole and thiophene rings is 66.80 (4)degrees and the dihedral angle between the two benzene rings is 63.37 (4)degrees. An intramolecular ... -
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-[(2-Hydroxybenzylidene)amino]-5-(2-thienylmethyl)-2H-1,2,4-triazol-3(4H)-one
Yilmaz, Isil; Arslan, N. Burcu; Kazak, Canan; Sancak, Kemal; Er, Mustafa (Int Union Crystallography, 2006)In the title compound, C14H12N4O2S, the triazole ring is nearly coplanar with the phenol unit, the dihedral angle being 6.60 (3)degrees. The crystal structure involves an inter-molecular N-HcO hydrogen bond and intra-molecular ... -
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 ... -
4-[3-(1H-Imidazol-1-yl)propyl]-3-phenyl-1H-1,2,4-triazol-5(4H)-one
Kalkan, Hueseyin; Ustabas, Resat; Sancak, Kemal; Uenver, Yasemin; Vazquez-Lopez, Ezequiel M. (Blackwell Publishing, 2007)The title compound, C14H15N5O, has two similar independent molecules in the asymmetric unit. The crystal structure is stabilized by C-H center dot center dot center dot O, C-H center dot center dot center dot N and N-H ... -
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 ... -
(E)-4,4 '-(but-2-ene-1,4-diyldioxy)bis(3methoxybenzaldehyde)
Ustabas, Resat; Coruh, Ufuk; Sancak, Kemal; Er, Mustafa; Vazquez-Lopez, Ezequiel M. (Int Union Crystallography, 2007)… -
Ethyl 5-oxo-4-[(2-pyridylmethylene) amino]-3-(2-thienylmethyl)-4,5-dihydro-1H-1,2,4-triazole-1-acetate (TF-S-pyridine-3-ester)
Yilmaz, Isil; Arslan, Burcu; Kazak, Canan; Sancak, Kemal; Er, Mustafa (Blackwell Publishing, 2006)The title compound, C17H17N5O3S, displays van der Waals and C-H center dot center dot center dot O interactions, and also C-H center dot center dot center dot pi stacking which is effective in the crystal packing. -
Experimental and DFT computational studies on 5-benzyl-4-(3,4-dimethoxyphenethyl)-2H-1,2,4-triazol-3(4H)-one
Tanak, Hasan; Koysal, Yavuz; Yavuz, Metin; Büyükgüngör, Orhan; Sancak, Kemal (Springer, 2010)The triazole compound, 5-benzyl-4-(3,4-dimethoxyphenethyl)-2H-1,2,4-triazol-3(4H)-one, has been synthesized and characterized by H-1-NMR, C-13-NMR, IR, and X-ray single-crystal determination. The compound crystallizes in ... -
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 ... -
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 ...
