Yazar "Koşar, Başak" seçeneğine göre listele

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  • Küçük Resim
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    (3aR,6S,7aR)-7a-Bromo-2-[(4-methylphenyl)sulfonyl]-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole
    (Acta Crystallographica Section E, 2011) Koşar, Başak; Demircan, Aydın; Arslan, Hakan; Büyükgüngör, Orhan
    In the title compound, C15H16BrNO3S, the boat form of the six-membered ring is almost symmetrical with respect to the epoxy bridge. The two five-membered rings generated by the epoxy bridge of the six-membered ring adopt envelope conformations, whereas the N-containing five-membered ring adopts a twisted conformation. In the crystal, molecules are linked by C—HO hydrogen bonds.
  • Küçük Resim
    Öğe
    Crystal Structure of (E)-3-[(4-Ethylphenylimino) methyl]benzene-1,2-diol and (E)-3-[(4-Butylphenyl imino)methyl]benzene-1,2-diol
    (25th European Crystallographic Meeting, 2009) Keleşoğlu, Zeynep; Koşar, Başak; Albayrak, Çiğdem; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan
    [Abstract Not Available]
  • Küçük Resim
    Öğe
    (E )-2-[(4-Fluorophenyl)iminomethyl]-5-methoxyphenol
    (Acta Crystallographica Section E, 2010) Albayrak, Çiğdem; Özek, Arzu; Koşar, Başak; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan
    [Abstract Not Available]
  • Küçük Resim
    Öğe
    (E )-5-Methoxy-2-(o-tolyliminomethyl)phenol
    (Acta Crystallographica Section E, 2009) Albayrak, Çiğdem; Koşar, Başak; Özek, Arzu; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan
    [Abstract Not Available]
  • Küçük Resim
    Öğe
    (E)-2-Ethoxy-6-[(4-ethoxyphenyl)iminomethyl]phenol
    (Acta Crystallographica Section E, 2010) Özek, Arzu; Koşar, Başak; Albayrak, Çiğdem; Büyükgüngör, Orhan
    [Abstract Not Available]
  • [ X ]
    Öğe
    (E)-3-[(3-(Trifluoromethyl)phenylimino)methyl] benzene-1,2-diol: X-ray and DFT calculated structures
    (2010) Koşar, Başak; Albayrak, Çiğdem; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan
    The crystal structure of (E)-3-[(3-(Trifluoromethyl)phenylimino)-methyl]benzene-1,2-diol was determined using X-ray diffraction and the molecular structure was investigated with density functional theory (DFT). The X-ray study showed that the title compound has a strong intramolecular O-H. . . N hydrogen bond and 3-dimensional crystal networks are primarily determined by O-H. . .O intermolecular hydrogen bonds and weak van der Waals interactions. The strong O-H. . .N bond is evidence of the preference for the phenol-imine tautomeric form in the solid state. Optimized molecular geometry was calculated with DFT at the B3LYP/6-31G(d,p) level. The results from both experiment and theoretical calculations for the title compound are compared with each other in this study.
  • Küçük Resim
    Öğe
    (E)-3-[(3-(Trifluoromethyl)phenylimino)methyl]benzene-1,2-diol: X-ray and DFT calculated structures
    (Turkish Journal of Chemistry, 2010) Koşar, Başak; Albayrak, Çiğdem; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan
    The crystal structure of (E)-3-[(3-(Trifluoromethyl)phenylimino)-methyl]benzene-1,2-diol was determined using X-ray diffraction and the molecular structure was investigated with density functional theory (DFT). The X-ray study showed that the title compound has a strong intramolecular O-H. . . N hydrogen bond and 3-dimensional crystal networks are primarily determined by O-H. . .O intermolecular hydrogen bonds and weak van der Waals interactions. The strong O-H. . .N bond is evidence of the preference for the phenol-imine tautomeric form in the solid state. Optimized molecular geometry was calculated with DFT at the B3LYP/6-31G(d,p) level. The results from both experiment and theoretical calculations for the title compound are compared with each other in this study.
  • Küçük Resim
    Öğe
    (E)-4-Methoxy-2-(p-tolyliminomethyl)phenol
    (Acta Crystallographica Section E, 2010) Koşar, Başak; Özek, Arzu; Albayrak, Çiğdem; Büyükgüngör, Orhan
    [Abstract Not Available]
  • Küçük Resim
    Öğe
    Synthesis and Properties of Triazol-5-one Substituted Phthalocyanines by Microwave Irradiation
    (Turkish Journal of Chemistry, 2006) Kahveci, Bahittin; Şaşmaz, Selami; Özil, Musa; Kantar, Cihan; Koşar, Başak; Büyükgüngör, Orhan
    Triazol-5-one substituted phthalocyanines were prepared quickly by the reaction of 4-nitrophthalonitrile with anhydrous metal salts in DBU (1,8-diazabicyclo[5,4,0]undec-7-ene) and DMAE (dimethylaminoethanol) by microwave irradiation. Microwave yields were higher than those of the conventional synthesis methods. All of these complexes are insoluble in polar solvents such as ethanol, ethyl acetate and chloroform. The characterization of the compounds was accomplished by elemental analysis, 1H NMR (for I and II), 13C NMR (for I and II), IR and UV-Vis spectral data. In addition, the structure of the starting material (I) was determined by single crystal diffraction.