Yazar "Isik, Samil" için listeleme
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1-[(E)-(2-Methyl-3-nitrophenyl)iminomethyl]-2-naphthol
Alpaslan, Yelda Bingol; Agar, Aysen Alaman; Isik, Samil (Wiley-Blackwell, 2010)The title Schiff base compound, C18H14N2O3, has an intermediate state between NH and OH tautomers. The molecular structure is stabilized by an O-H center dot center dot center dot N hydrogen bond. The dihedral angle between ... -
1-Acylthiosemicarbazides, 1,2,4-triazole-5(4H)-thiones, 1,3,4-thiadiazoles and hydrazones containing 5-methyl-2-benzoxazolinones: Synthesis, analgesic-anti-inflammatory and antimicrobial activities
Salgin-Goksen, Umut; Goekhan-Kelekci, Nesrin; Goektas, Ozguer; Koeysal, Yavuz; Kilic, Ekrem; Isik, Samil; Oezalp, Meral (Pergamon-Elsevier Science Ltd, 2007)Acetic acid hydrazide containing 5-methyl-2-benzoxazolinone (4) was synthesized by the condensation of 2-(5-methyl-2benzoxazolinone-3-yl)acetate with hydrazine hydrate. Thiosemicarbazide derivatives (5a-5d) were afforded ... -
2,5-Dihexyl-3,6-diphenylpyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione
Sevincek, Resul; Celik, Secil; Aygun, Muhittin; Alp, Serap; Isik, Samil (Wiley-Blackwell, 2010)The asymmetric unit of the title compound, C(30)H(36)N(2)O(2), contains one half-molecule, the other half being generated by a crystallographic inversion centre. The crystal structure is devoid of any classical hydrogen ... -
2-[(4-Bromophenyl)iminomethyl]-3,5-dimethoxyphenol
Kilic, Isin; Agar, Erbil; Ersahin, Ferda; Isik, Samil (Wiley-Blackwell Publishing, Inc, 2009)There are two independent molecules in the asymmetric unit of the title compound, C(15)H(14)BrNO(3), with very similar geometrical parameters. Each molecule adopts the pheno-limine tautomeric form, with strong intramolecular ... -
2-[(4-Ethoxyphenyl)iminomethyl]-5-methoxyphenol
Sahin, Zarife Sibel; Ersahin, Ferda; Macit, Mustafa; Isik, Samil (Int Union Crystallography, 2009)The title compound, C16H17NO3, a Schiff base, is stabilized in the solid state in the phenol-imine tautomeric form, with the H atom located on the hydroxy O atom rather than on the N atom. This H atom is involved in a ... -
2-[(4-Ethylphenyl)iminomethyl]-3,5-dimethoxyphenol
Sahin, Zarife Sibel; Ersahin, Ferda; Agar, Aysen Alaman; Isik, Samil (Int Union Crystallography, 2009)The title compound, C17H19NO3, adopts the phenol-imine tautomeric form, with a resonance-assisted O-H center dot center dot center dot N intramolecular hydrogen bond [O center dot center dot center dot N = 2.551 (3) ... -
2-[(4-Methoxyphenyl)iminomethyl]-4-nitrophenol
Kilic, Isin; Agar, Erbil; Ersahin, Ferda; Isik, Samil (Wiley-Blackwell Publishing, Inc, 2009)The title Schiff base compound, C(14)H(12)N(2)O(4), is in an intermediate state between NH and OH tautomers. Apart from the intramolecular O-H center dot center dot center dot N hydrogen bond, there are intermolecular C-H ... -
2-Hydroxy-5-nitrobenzaldehyde
Tanak, Hasan; Macit, Mustafa; Yavuz, Metin; Isik, Samil (Wiley-Blackwell, 2009)The title compound, C(7)H(5)NO(4), is essentially planar, with a maximum deviation from the mean plane of 0.0116 (11) angstrom for the hydroxy O atom. The molecular and crystal structure are stabilized by intra-and ... -
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 ... -
3,5-Dibenzoyl-2,6-dimethyl-1-pentyl-4-pyridone
Sahin, Zarife Sibel; Isik, Samil; Sener, Ahmet; Tan, Meltem (Int Union Crystallography, 2009)In the crystal structure of the title compound, C26H27NO3, a one-dimensional network of C-H center dot center dot center dot O hydrogen bonds and pi-ring interactions is responsible for crystal stabilization. Intermolecular ... -
3,5-Dimethoxy-2-[(4-propylphenyl)iminomethyl]phenol
Sahin, Zarife Sibel; Agar, Aysen Alaman; Ersahin, Ferda; Isik, Samil (Int Union Crystallography, 2009)The title compound, C18H21NO3, crystallizes in the phenolimine tautomeric form, with the H atom attached to oxygen rather than on nitrogen. This H atom is involved in a strong intramolecular O-H center dot center dot center ... -
3-[(2,4-Dichlorophenyl)iminomethyl]-2-hydroxy-5-methylbenzaldehyde
Kilic, Isin; Isik, Samil; Agar, Erbil; Ersahin, Ferda (Wiley-Blackwell, 2009)The title compound, C(15)H(11)Cl(2)NO(2), is a Schiff base which adopts the phenol-imine tautomeric form in the solid state, being stabilized by a strong intramolecular O-H center dot center dot center dot N hydrogen bond. ... -
3-[(5-Methyl-2-oxo-1,3-benzoxazol-3-yl)methyl]-4-phenyl-1H-1,2,4-triazole-5(4H)-thione
Koeysal, Yavuz; Isik, Samil; Salgin, Umut; Goekhan, Nesrin (Blackwell Publishing, 2007)… -
3-[2-(2-thienyl)ethoxy]phthalonitrile
Koysal, Yavuz; Isik, Samil; Iskeeli, Nazan Ocak; Durmus, Mahmut; Ahsen, Vefa (Blackwell Publishing, 2006)In the title compound, C14H10N2OS, the thienyl and phthalonitrile planes make a dihedral angle of 57.92 (2)degrees. -
3-Chloro-4-(4-chlorophenoxy)-N-[(Z)-(5-nitrothiophen-2-yl)methylidene]aniline
Tari, Gonca Ozdemir; Isik, Samil (Wiley-Blackwell, 2012)In the title compound, C17H10Cl2N2O3S, the thiophene ring and the central benzene ring are almost coplanar [dihedral angle = 8.44 (3)degrees], while the dihedral angle between the two benzene rings rings is 77.49 (9)degrees. ... -
3-Methoxy-2-[(E)-(4-methoxyphenyl)iminomethyl]phenol
Tari, Gonca Ozdemir; Isik, Samil; Ozkan, Ramazan; Agar, Aysen Alaman (Wiley-Blackwell, 2011)The title compound, C15H15NO3, adopts the enol-imine tautomeric form. The two rings are twisted with respect to each other, making a dihedral angle of 44.08 (5)degrees. The 3-methoxy-2-[(E)-(4-methoxyphenyl)-iminomethyl]phenol ... -
4-(2,3-Dihydroxybenzylideneamino)-3-methyl-1H-1,2,4-triazol-5(4H)-one
Tanak, Hasan; Koysal, Yavuz; Yavuz, Metin; Isik, Samil; Gul, Guelsah (Wiley-Blackwell, 2009)All the non-H atoms of the title compound, C(10)H(10)N(4)O(3), are almost coplanar, the maximum deviation from planarity being 0.065 (3) angstrom. The dihedral angle between the aromatic rings is 1.66 (6)degrees. The ... -
4-(4-Methoxyphenethyl)-3-methyl-1H-1,2,4-triazol-5(4H)-one
Koysal, Yavuz; Tanak, Hasan; Unluer, Dilek; Isik, Samil (Int Union Crystallography, 2010)The dihedral angle between the two rings in the title compound, C12H15N3O2, is 49.03 (1)degrees. The crystal structure is stabilized by intermolecular N-H...O and C-H...O hydrogen bonds and pi-pi stacking interactions ... -
4-Allyl-3-[(5-methyl-2-oxo-1,3-benzox-azol-3-yl)methyl]-1H-1,2,4-triazole-5(4H)-thione
Koeysal, Yavuz; Isik, Samil; Salgin, Umut; Goekhan, Nesrin (Blackwell Publishing, 2007)… -
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 ...
