• 3-Phenyl­Diazen­Yl-1,2-Dimethyl-1H-Indole 

      Hökelek, Tuncer; Biçer, Nusret Tuna; Seferoğlu, Zeynel; Şahin, Ertan (2010)
      In the title mol­ecule, C16H15N3, the indole ring system is planar within 0.021 (3) Å and the phenyl ring is inclined to this plane by 17.32 (14)°. π–π contacts involving the pyrrole rings of inversion-related indole units ...
    • (3Ar,4S,7R,7As)-2-Phenyl-4-Propyl-3A,4,7,7A-Tetra­Hydro-1H-4,7-Epithio­Iso­Indole-1,3-Dione 8-Oxide 

      Demircan, Aydın; Şahin, Ertan; Beyazova, G.; Karaaslan, M.; Hökelek, Tuncer (2011)
      In the tetra­hydro­isoindole moiety of the title compound, C17H17NO3S, the six-membered ring assumes a boat configuration and the –S=O group bridges the prow and stern of the boat. The phenyl ring is oriented at a dihedral ...
    • (4,9-Dimethyl-9H-Carbazol-3-Yl)Meth­Anol 

      Öncüoglu, Serkan; Dilek, Nefise; Ergün, Y.; Hökelek, Tuncer (2014)
      In the title compound, C15H15NO, the carbazole skeleton includes a methanol group at the 3-position. The indole ring system is almost planar [maximum deviation = 0.045 (2) Å]. In the crystal, O—H⋯O hydrogen bonds link the ...
    • 4-(Furan-2-Ylmeth­Oxy)Benzene-1,2-Dicarbonitrile 

      Tuncer, Hülya; Görgülü, Ahmet Orhan; Hökelek, Tuncer (2012)
      In the title compound, C13H8N2O2, prepared from furfuryl alcohol and 4-nitro­phthalonitrile in the presence of potassium carbonate in dimethyl­formamide, the furan and benzene rings are oriented at a dihedral angle of ...
    • 4-[2-(2,2-Dimethyl-4,6-Dioxo-1,3-Dioxan-5-Yl­Idene)Hydrazin-1-Yl]Benzo­nitrile 

      Çolak, Naki; Yıldırır, Yılmaz; Tercan, B.; Ermis, E.; Hökelek, Tuncer (2010)
      In the title compound, C13H11N3O4, the dioxane ring adopts an envelope conformation with the C atom bonded to the dimethyl group in the flap position [deviation = 0.613 (1) Å]. The nitrile group and the attached benzene ...
    • 4-Methyl-N-(4-Methyl­Phenyl­Sulfon­Yl)-N-Phenyl­Benzene­Sulfonamide 

      Eren, Bilge; Demir, Selçuk; Dal, Hakan; Hökelek, Tuncer (2014)
      The whole mol­ecule of the title compound, C20H19NO4S2, is generated by twofold rotational symmetry. The N atom is located on the twofold rotation axis and has a trigonal-planar geometry. It is bonded by two S atoms of two ...
    • 4-Meth­Oxy-2-[(E)-(Phenyl­Imino)Meth­Yl]Phenol 

      Uçan, Selma; Öztürk, Aslı; Sarıkavaklı, N.; Hökelek, Tuncer (2008)
      In the mol­ecule of the title compound, C14H13NO2, the two aromatic rings are oriented at a dihedral angle of 0.78 (20)°; with the exception of two methyl H atoms the mol­ecule is essentially planar. The intra­molecular ...
    • 4-{4-[(E)-(2-Hy­droxy­hen­yl)imino­methyl]phen­oxy}Benzene-1,2-Di­carbo­nitrile 

      Görgülü, Ahmet Orhan; Hökelek, Tuncer (2012)
      The asymmetric unit of the title compound, C21H13N3O2, contains two independent mol­ecules with a similar structure. In one mol­ecule, the central benzene ring is oriented with respect to the terminal benzene rings at ...
    • 4-{[4-(Di­methyl­amino)­Benzyildene]amino}­Benzene­sulfonamide 

      Durgun, Mustafa; Türkmen, Hasan; Tunç, H.; Hökelek, Tuncer (2014)
      The title Schiff base compound, C15H17N3O2S, is non-planar with a dihedral angle of 69.88 (4)° between the planes of the benzene rings. In the crystal, pairs of N—H⋯N hydrogen bonds, between the sulfonamide nitro­gen-H ...
    • 4′,4′,6′,6′-Tetra­chloro-2-(6-methyl­pyridin-2-yl)-1H,2H-spiro­[naphtho­[1,2-E][1,3,2]oxaza­phosphinine-3,2′-[1,3,5,2,4,6]Tri­aza­triphosphinine] 

      Işıklan, Muhammet; Sonkaya, Ömer; Hökelek, Tuncer (2013)
      The title compound, C17H14Cl4N5OP3, is a spiro-phosphazene derivative with bulky naphthalene and pyridine rings. The phosphazene and the six-membered N/O rings are in flattened-boat and twisted-boat conformations, respectively. ...
    • 5, 6-Diphenylthieno[2, 3-D][1, 3]-Dithiole-2-Thione 

      Kaynak,F. Betül; Özbey, Süheyla; Öztürk , Turan; Ertas ,Erdal (2001)
    • 5,6-Diphenyl­pyrazine-2,3-Dicarbonitrile 

      Hökelek, Tuncer; Yalçın, Ergin; Seferoğlu, Z.; Şahin, Ertan (2009)
      In the title compound, C18H10N4, the pyrazine ring is oriented at dihedral angles of 48.08 (7) and 44.80 (7)° with respect to the phenyl rings, while the dihedral angle between the phenyl rings is 49.47 (7)°. In the crystal ...
    • 5-(3,6-Dibromo-9H-carbazol-9-yl)penta­nenitrile 

      Uludağ, Nesimi; Ateş, Murat; Tercan, Barış; Hökelek, Tuncer (2011)
      In the title compound, C17H14Br2N2, the carbazole skeleton is nearly planar [maximum deviation = 0.055 (2) Å]. In the crystal, aromatic π–π stacking is observed between parallel carbazole ring systems of adjacent mol­ecules, ...
    • 5-Benzyl-5-Phenyl[1,3]Dithiolo[4,5-D]-[1,3]Dithiole-2-Thione 

      Kaynak, F. Betül; Özbey, Süheyla; Öztürk, Turan; Ertaş, Erdal (Munksgaard Int Publ Ltd, 2001)
      In the title compound, C17H12S5, the dithiole ring bearing the aryl substituents assumes an envelope conformation with the maximum deviation from planarity being -0.053 Angstrom. The phenyl and benzyl rings are twisted by ...
    • 9-(4-Nitro­Phenyl­Sulfon­Yl)-9H-Carbazole 

      Uludağ, Nesimi; Ateş, Murat; Tercan, Barış; Hökelek, Tuncer (2011)
      In the title mol­ecule, C18H12N2O4S, the carbazole skeleton is nearly planar [maximum deviation = 0.037 (1) Å] and is oriented at a dihedral angle of 73.73 (5)° with respect to the benzene ring. An intra­molecular C—H⋯O ...
    • 9-Benzyl-9H-Carbazole 

      Uludağ, Nesimi; Ateş, Murat; Tercan, Barış; Ermis, Emel; Hökelek, Tuncer (2010)
      The asymmetric unit of the title compound, C19H15N, contains two crystallographically independent mol­ecules. In both mol­ecules, the planar carbazole moieties [maximum deviations = 0.037 (4) and 0.042 (3) Å] are oriented ...
    • 9H-Carbazole-9-Carbo­thioic Di­thio­peroxy­anhydride 

      Uludağ, Nesimi; Ateş, Murat; Delibaş, N. Çaylak; Çelik, Ömer; Hökelek, Tuncer (2013)
      The whole mol­ecule of the title compound, C26H16N2S4, is generated by twofold rotational symmetry. The carbazole skeleton is nearly planar [maximum deviation = 0.054 (5) Å]. In the crystal, aromatic π–π stacking is observed ...
    • A Weak Field Epr Study of Tanol In Water And Water-Oil Using Dynamic Nuclear Polarization 

      Horasan, N.; Sünnetçioǧlu, M.M.; Sungur, R.; Bingöl, G. (1997)
    • An Electron Paramagnetic Resonance (Epr) Spin Labeling Study In Ht-29 Colon Adenocarcinoma Cells After Hypericin-Mediated Photodynamic Therapy 

      Yonar, D.; Kılıç Süloğlu, A.; Selmanoğlu, G.; Sünnetçioğlu, M. M. (2019)
      Background Colon cancer affects 1.23 million people worldwide and is the third most common malignant disease in men and the second in women. The only curative treatment is surgical resection, but a significant number of ...
    • An Esr Study on Fingernail As a Biological Dosimeter 

      Çolak , Şeyda; Özbey ,Turan (2012)