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Desynchronization of pedal motion: Crystallographic and theoretical study of (E)-4-[(4-ethylphenyl)diazenyl]-2-methylphenol
Ocak-Iskeleli, Nazan; Karabiyik, Hasan; Albayrak, Cigdem; Agar, Erbil (Springer/Plenum Publishers, 2008)The single crystal X-ray diffraction analysis of the title compound, C15H16N2O, reveals that its molecules exhibit whole-molecule disorder at both crystal lattice sites due to pedal motion in solid state. The compound ... -
(E)-1-[4-(2,4-Dihydroxybenzylidene-amino)phenyl]ethanone sesquihydrate
Ozek, Arzu; Albayrak, Cigdem; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan (Int Union Crystallography, 2007)The asymmetric unit of the title compound, C15H13NO3 center dot-1.5H(2)O, consists of one ethanone molecule, one water molecule and one half- molecule of water. The organic molecule is a phenol - imine tautomer, as evidenced ... -
(E)-1-[4-(2-hydroxy-5-methoxybenzylideneamino)phenyl]ethanone and (E)-1-[4-(2-hydroxy-4-methoxybenzylideneamino)phenyl]ethanone: X-ray and DFT-calculated structures
Sahin, Onur; Büyükgüngör, Orhan; Albayrak, Cigdem; Odabaşoğlu, Mustafa (Chinese Journal Structural Chemistry, 2011)The isomeric structures of (E)-1-[4-(2-hydroxy-5-methoxybenzylideneamino)phenyl] ethanone (I) and (E)-1-[4-(2-hydroxy-4-methoxybenzylideneamino)phenyl]ethanone (II), both C(16)H(15)NO(3), have been determined using X-ray ... -
(E)-2-[(2-Ethylphenyl)iminiomethyl]-6-hydroxyphenolate
Yazici, Serap; Albayrak, Cigdem; Gumrukcuoglu, Ismail; Senel, Ismet; Büyükgüngör, Orhan (Wiley-Blackwell, 2010)The molecule of the title compound, C(15)H(15)NO(2), crystallizes in a zwitterionic form, and displays an E configuration about the C=N bond. The dihedral angle between the two aromatic rings is 5.59 (6)degrees. An ... -
(E)-2-[(2-Ethylphenyl)iminomethyl]-6-methoxyphenol
Yazici, Serap; Albayrak, Cigdem; Gumrukcuoglu, Ismail; Senel, Ismet; Büyükgüngör, Orhan (Wiley-Blackwell, 2010)The molecule of the title compound, C(16)H(17)NO(2), adopts the phenol-imine tautomeric form with a strong intramolecular O-H center dot center dot center dot N hydrogen bond and an E conformation with respect to the ... -
(E)-2-[(2-methoxyphenylimino)methyl]-4-methylphenol
Kartal, Asli; Albayrak, Cigdem; Iskeleli, Nazan Ocak; Agar, Erbil; Erdonmez, Ahmet (Int Union Crystallography, 2007)The title compound, C15H15NO2, adopts the phenol-imine tautomeric form, with a strong intramolecular O-H center dot center dot center dot N hydrogen bond. -
(E)-2-[(4-Chlorophenyl)iminomethyl]-5-methoxyphenol and (E)-2-[(2-chlorophenyl)iminomethyl]-5-methoxyphenol: X-ray and DFT-calculated structures
Kosar, Basak; Albayrak, Cigdem; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan (Wiley-Blackwell, 2009)The crystal structures of the title 4-chlorophenyl, (I), and 2-chlorophenyl, (II), compounds, both C14H12ClNO2, have been determined using X-ray diffraction techniques and the molecular structures have also been optimized ... -
(E)-2-[(4-Ethoxyphenyl)iminomethyl]-4-methoxyphenol
Ozek, Arzu; Albayrak, Cigdem; Büyükgüngör, Orhan (Int Union Crystallography, 2009)In the molecule of the title compound, C16H17NO3, the aromatic rings are oriented at a dihedral angle of 29.25 (8)degrees. An intramolecular O-H center dot center dot center dot N hydrogen bond results in the formation of ... -
(E)-2-[(4-Fluorophenyl)iminomethyl]-5-methoxyphenol
Albayrak, Cigdem; Ozek, Arzu; Kosar, Basak; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan (Wiley-Blackwell, 2010)In the molecule of the title compound, C(14)H(12)FNO(2), the aromatic rings are oriented at a dihedral angle of 48.17 (1)degrees. An intramolecular O-H center dot center dot center dot N hydrogen bond results in the formation ... -
(E)-2-acetyl-4-(4-methoxyphenyldiazenyl) phenol: X-ray and DFT-calculated structure
Yazici, Serap; Albayrak, Cigdem; Gumrukcuoglu, Ismail Erdem; Senel, Ismet; Büyükgüngör, Orhan (Scientific Technical Research Council Turkey-Tubitak, 2011)The crystal structure of the title compound, (E)-2-acetyl-4-(4-methoxyphenyldiazenyl) phenol, displays a trans configuration of the azo moiety as found for other azo (diazene) derivatives. The aromatic mean planes are ... -
(E)-2-acetyl-4-(phenyldiazenyl) phenol
Iskeleli, Nazan Ocak; Albayrak, Cigdem; Agar, Erbil (Int Union Crystallography, 2006)The molecule of the title compound, C14H12N2O2, is nearly planar and displays a trans configuration with respect to the N=N double bond, as found for other diazene derivatives. There is an intramolecular O-H center dot ... -
(E)-2-Acetyl-4-[(3-methylphenyl)diazenyl]phenol: an X-ray and DFT study
Yazici, Serap; Albayrak, Cigdem; Gumrukcuoglu, Ismail; Senel, Ismet; Büyükgüngör, Orhan (Int Union Crystallography, 2010)The title compound, C15H14N2O2, an azo dye, displays a trans configuration with respect to the N = N bridge. The dihedral angle between the aromatic rings is 0.18 (14)degrees. There is a strong intramolecular O-H center ... -
(E)-2-Ethoxy-6-[(4-ethoxyphenyl)iminomethyl]phenol
Ozek, Arzu; Kosar, Basak; Albayrak, Cigdem; Büyükgüngör, Orhan (Int Union Crystallography, 2010)In the asymmetric unit of the title compound, C17H19NO3, there are three independent molecules, which are align nearly parallel to each other and adopt the phenol-imine tautomeric form. In each molecule, an intramolecular ... -
(E)-2-Hydroxy-3-methoxy-5-[(4-propylphenyl)-diazenyl]benzaldehyde
Karadayi, Nevzat; Albayrak, Cigdem; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan (Int Union Crystallography, 2006)In the title compound, C18H20N2O3, the azobenzene unit has a trans configuration, and the two benzene rings are inclined with respect to each other by 5.9 (2)degrees. Molecules are linked by O-H center dot center dot center ... -
(E)-2-Hydroxy-6-[(4-propylphenyl)iminiomethyl]phenolate
Yazici, Serap; Albayrak, Cigdem; Gumrukcuoglu, Ismail; Senel, Ismet; Büyükgüngör, Orhan (Wiley-Blackwell Publishing, Inc, 2010)The title compound, C(16)H(17)NO(2), crystallizes with three crystallographically independent zwitterionic molecules in the asymmetric unit which differ significantly in the orientations of the propyl side chains. The ... -
(E)-2-methyl-4-(phenyldiazenyl)phenol
Albayrak, Cigdem; Guemruekcueoglu, Ismail Erdem; Odabaoglu, Mustafa; Büyükgüngör, Orhan (Blackwell Publishing, 2007)In the molecule of the title compound, C13H12N2O, all atoms except for the methyl H atoms are coplanar and the dihedral angle between the aromatic rings is 1.38 (7)degrees. In the crystal structure, intermolecular O-H ... -
(E)-2-Methyl-4-[(4-nitrophenyl)diazenyl]phenol dimethylformamide solvate
Kosar, Basak; Albayrak, Cigdem; Guemruekcueoglu, Ismail; Büyükgüngör, Orhan (Blackwell Publishing, 2007)The title compound, C13H11N3O3 center dot C3H7NO, displays an intermolecular O-H center dot center dot center dot O hydrogen bond between the hydroxyl group and the carbonyl O atom of the solvent molecule. The configuration ... -
(E)-2-methyl-4-[(4-propylphenyl)diazenyl]phenol
Albayrak, Cigdem; Guemruekcueoglu, Ismail Erdem; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan (Blackwell Publishing, 2007)The title compound, C16H18N2O, was produced when 4-propylbenzenediazonium chloride, prepared from a 4-propylaniline and NaNO2-HCl mixture, was treated with 2-methylphenol in an approximately 1: 1 molar ratio. The molecules ... -
(E)-2-{1-[(4-Ethoxyphenyl)imino]ethyl}phenol
Petek, Hande; Albayrak, Cigdem; Agar, Erbil; Iskelei, Nazan Ocak; Senel, Ismet (Blackwell Publishing, 2007)The crystal structure of the title compound, C16H17NO2, contains two independent molecules in the asymmetric unit. Both molecules adopt the phenol-imine tautomeric form, with strong intramolecular O-H center dot center dot ... -
(E)-3-[(2-bromophenyl)iminomethyl]-benzene-1,2-diol
Temel, Ersin; Albayrak, Cigdem; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan (Int Union Crystallography, 2007)The title compound, C13H10BrNO2, crystallizes in an enol imine form. The molecule is roughly planar, with a dihedral angle of 5.13 (10)(degrees) between the aromatic rings. Intramolecular O-H (. . .) N hydrogen bonding ...