Dizinleme Kaynağı "WoS" Fizik Mühendisliği Bölümü Makale Koleksiyonu için listeleme

Toplam kayıt 600, listelenen: 21-40

    • 2-(1H-Benzimidazol-1-Yl)-1-(2-Fur­Yl)Ethanone O-Ethyl­Oxime 

      Güven, Özden Özel; Erdogan, Taner; Tahir, M. N.; Hökelek, Tuncer (2009)
      In the mol­ecule of the title compound, C15H15N3O2, the planar benzimidazole ring system [maximum deviation = 0.023 (2) Å] is oriented at a dihedral angle of 74.21 (5)° with respect to the furan ring. In the crystal ...

    • 2-(1H-Benzimidazol-1-Yl)-1-(2-Fur­Yl)Ethanone O-Isopropyl­Oxime 

      Güven, Özden Özel; Erdoğan, Taner; Coles, S. J.; Hökelek, Tuncer (2009)
      In the mol­ecule of the title compound, C16H17N3O2, the planar benzimidazole ring system [maximum deviation = 0.015 (2) Å] is oriented at a dihedral angle of 72.17 (4)° with respect to the furan ring. An intra­molecular ...

    • 2-(1H-Benzimidazol-1-Yl)-1-Phenyl­Ethanone 

      Güven, Özden Özel; Erdoğan, Taner; Coles, S. J.; Hökelek, Tuncer (2008)
      In the mol­ecule of the title compound, C15H12N2O, the planar benzimidazole system is oriented at a dihedral angle of 80.43 (5)° with respect to the phenyl ring. In the crystal structure, non-classical inter­molecular C—H⋯N ...

    • 2-(1H-Benzotriazol-1-Yl)-1-(Furan-2-Yl)Ethanol 

      Güven, Özden Özel; Bayraktar, Meral; J. Coles, Simon; Hökelek,Tuncer (2011)
      In the title compound, C12H11N3O2, the benzotriazole ring system is approximately planar [maximum deviation = 0.008 (1) Å] and its mean plane is oriented at a dihedral angle of 24.05 (4)° with respect to the furan ring. ...

    • 2-(1H-Benzotriazol-1-Yl)-1-Phenyl­Ethanol 

      Güven, Özden Özel; Bayraktar, Meral; Coles, S.J.; Hökelek, Tuncer (2010)
      In the title compound, C14H13N3O, the benzotriazole ring is oriented at a dihedral angle of 13.43 (4)° with respect to the phenyl ring. In the crystal structure, inter­molecular O—H⋯N hydrogen bonds link the mol­ecules ...

    • 2-(1H-Benzotriazol-1-Yl)-3-(2,6-Dichloro­Phen­Yl)-1-Phenyl­Propan-1-Ol 

      Güven, Özden Özel; Çapanlar, Seval; Coles, Simort. J.; Hökelek, Tuncer (2011)
      The asymmetric unit of the title compound, C21H17Cl2N3O, contains two crystallographically independent mol­ecules with similar conformations. The benzotriazole ring is oriented at dihedral angles of 30.61 (5) and 43.36 (5)°, ...

    • 2-(2,6-Di-Tert-Butyl-4-Methylphenoxy)-2,4,4,6,6,8,8-Heptachlorocyclo-2 Lambda(5),4 Lambda(5),6 Lambda(5),8 Lambda(5)-Tetraphosphazatetraene 

      Hökelek, Tuncer; Kiliç, A.; Begeç , S.; Kiliç , Z.; Yildiz , M. (Munksgaard Int Publ Ltd, 1996)
      The title compound, C15H23Cl7N4OP4, consists Of a saddle-shaped cyclic tetrameric phosphazene ring and a bulky 2,6-di-tert-butyl-4-methylphenoxy side group. The bulky group substituent is instrumental in determining the ...

    • 2-(2,6-Di-Tert-Butylphenoxy)-2',4,4,4',4',6,6,6',6'-Nonachloro-2,2'-Bi(Cyclotri-Lambda-5-Phosphazene) 

      Hökelek, Tuncer; Kiliç ,Z.; Kiliç,A. (Munksgaard Int Publ Ltd, 1994)
      The title compound consists of the bulky 2,6-di-tert-butylphenoxy group and two phosphazene rings joined by a P-P bond [2.193 (2) angstrom]. The bulky group plays a predominant role in the distortion of the molecule as a ...

    • 2-(Naphthalen-1-Yl)-4-(Naphthalen-1-Yl­Methyl­Idene)-1,3-Oxazol-5(4H)-One 

      Gündogdu, Cevher; Alp, Serap; Ergün, Yavuz; Tercan, Barış; Hökelek , Tuncer (2011)
      In the title compound, C24H15NO2, the oxazole ring is oriented at dihedral angles of 10.09 (4) and 6.04 (4)° with respect to the mean planes of the naphthalene ring systems, while the two naphthalene ring systems make a ...

    • 2-(Naphthalen-1-Yl)-4-(Thio­Phen-2-Yl­Methyl­Idene)-1,3-Oxazol-5(4H)-One 

      Gündoğdu, Cevher; Alp,Serap; Ergün, Yavuz; Tercan, Barış; Hökelek, Tuncer (2011)
      The asymmetric unit of the title compound, C18H11NO2S, contains two crystallographically independent mol­ecules. In one mol­ecule, the oxazole and thio­phene rings are oriented at dihedral angles of 17.40 (9) and 18.18 (7)° ...

    • 2-Hydroxy­Imino-1-Phenyl­Ethanone Thio­Semicarbazone Monohydrate 

      Sarıkavaklı, N.; Babahan, I.; Şahin, E.; Hökelek, T. (2008)
      In the title thio­semicarbazone derivative, C9H10N4OS·H2O, intra­molecular N—H⋯N hydrogen bonds result in the formation of two nearly coplanar five- and six-membered rings, which are also almost coplanar with the adjacent ...

    • 2-Methyl-5,6-Dinitro­Benzimidazolium Chloride 

      Dinçer, Sebla; Gönülalan, Gonca; Tercan, B.; Hökelek, Tuncer (2011)
      In the title compound, C8H7N4O4 +·Cl−, the cation possesses twofold symmetry, with the twofold axis bis­ecting the 2-methyl-5,6-dinitro­benzimidazolium cation. The methyl H atoms are disordered about this ...

    • 2-Methyl-5-Nitro-1H-Benzimidazol-6-Amine Dihydrate 

      Dinçer, Sebla; Dal, Hakan; Hökelek, Tuncer (2011)
      The title benzimidazole mol­ecule, C8H8N4O2·2H2O, is planar with a maximum deviation of 0.079 (2) Å (for one of the O atoms in the nitro group). It crystallized as a dihydrate and inter­molecular O—H⋯O and N—H⋯O hydrogen ...

    • 3,3-Ethyl­Enedithio-3,3A,4,5,10,10B-Hexa­Hydro-2H-Furo[2,3-A]Carbazole 

      Uludağ, Nesimi; Öztürk, Aslı; Hökelek, Tuncer; Erdoğan, Ümit Işık (2009)
      The title compound, C16H17NOS2, consists of a carbazole skeleton with tetra­hydro­furan and dithiol­ane rings. In the indole ring system, the benzene and pyrrole rings are nearly coplanar, forming a dihedral angle of ...

    • 3,3′-Dimethyl-4,4′-(Hexane-1,6-Di­Yl)Bis­[1H-1,2,4-Triazol-5(4H)-One] 

      Ustabaş, Reşat; Çoruh, Ufuk; Ünlüer, D.; Hökelek, Tuncer; Ermiş, Emel (2010)
      The title compound, C12H20N6O2, has a centre of symmetry. The mol­ecule consists of two triazole rings joined by an aliphatic –(CH2)6– chain. The crystal structure is stabilized by inter­molecular N—H⋯O hydrogen bonds and ...

    • 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-(4-Methoxybenzoyl)-5-(4-Methoxyphenyl)-2,3-Dihydro-2,3-Furandione 

      Hökelek, Tuncer; Saripinar,E.; Yildirim, I.; Akkurt , M.; Akçamur , Y. (Blackwell Munksgaard, 2002)
      The title compound, C19H14O6, is a derivative of 2,3-dioxo-2,3-dihydrofuran. The furan ring is essentially planar and the phenyl rings in the methoxyphenyl and methoxybenzoyl groups are not parallel to each other. The furan ...

    • 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 ...