Yazar "Iskeleli, Nazan Ocak" için listeleme
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2,2 '-Bipyridinium fluorotrioxochromate(VI)
Ozyurek, Cengiz; Sendil, Kivilcim; Dilek, Nefise; Iskeleli, Nazan Ocak (Int Union Crystallography, 2007)A facile synthesis of 2,2'-bipyridinium fluorochromate( VI), (C10H9N2)[CrO3F], was developed by reacting CrO3 with HF in the presence of 2,2'-bipyridine. The structure of the title compound consists of discrete cations and ... -
4,6-Dimethyl-2-thioxo-1,2-dihydropyridine3-carbonitrile
Eyduran, Fatih; Oezyuerek, Cengiz; Dilek, Nefise; Iskeleli, Nazan Ocak; Sendil, Kivilcim (Int Union Crystallography, 2007)In the crystal structure of the title compound, C8H8N2S, the molecules form centrosymmetric dimers via N-H center dot center dot center dot S hydrogen bonds. -
4-(2-methoxyphenoxy)phthalonitrile
Agar, Aysen; Iskeleli, Nazan Ocak (Int Union Crystallography, 2007)In the title compound, C16H12N2O2, the 2-methoxyphenoxy and phthalonitrile planes make a dihedral angle of 83.42 (7)degrees. -
4-(4-acetyl-2-methoxyphenoxy)benzene-1,2-dicarbonitrile
Kartal, Asli; Albayrak, Cigdem; Agar, Aysen; Iskeleli, Nazan Ocak; Erdonmez, Ahmet (Int Union Crystallography, 2006)The molecule of the title compound, C17H12N2O3, is not planar. The dihedral angle between the phthalonitrile unit and methoxyacetophenone group is 81.1 (1)degrees. -
4-(m-tolyloxy) phthalonitrile
Iskeleli, Nazan Ocak (Int Union Crystallography, 2007)The crystal structure of the title phthalonitrile derivative, C15H10N2O, is stabilized by pi-pi stacking interactions. -
Anchor Effect on Pedal Motion Observed in Crystal Phase of an Azobenzene Derivative
Karabiyik, Hasan; Petek, Hande; Iskeleli, Nazan Ocak; Albayrak, Cigdem; Agar, Erbil (Springer/Plenum Publishers, 2011)Some molecules having a molecular skeleton similar to that of stilbenes and azobenzenes show orientational disorder in the crystals due to pedal motion. Heretofore, the orientational disorder through pedal motion has been ... -
Conformational analysis and crystal structure of (E)-3-methyl-4-(p-tolyldiazenyl)phenol
Karabiyik, Hasan; Iskeleli, Nazan Ocak; Albayrak, Cigdem; Agar, Erbil (Springer/Plenum Publishers, 2007)The single crystal X-ray diffraction analysis of the title compound, C14H14N2O, reveals that an interesting intermolecular or extended structure (hydrogen-bonded polymeric zigzag chains) is formed by linking its monomer ... -
Crystal structure and DFT calculations of 5-(4-Chlorophenyl)-1-(6-methoxypyridazin-3-yl)-1 H-pyrazole-3-carboxylic acid
Alasalvar, Can; Soylu, Mustafa Serkan; Unver, Huseyin; Iskeleli, Nazan Ocak; Yildiz, Mustafa; Ciftci, Murat; Banoglu, Erden (Pergamon-Elsevier Science Ltd, 2014)The title compound, 5-(4-Chlorophenyl)-1-(6-methoxypyridazin-3-yl)-1H-pyrazole-3-carboxylic acid, has been characterized by using elemental analysis, MS, FT-IR, H-1 NMR and C-13 NMR spectroscopic, and crystallographic ... -
Crystallographic and conformational analyses of zwitterionic form of (E)-2-methoxy-6-[(2-morpholinoethylimino)methyl]phenolate
Petek, Hande; Albayrak, Cigdem; Iskeleli, Nazan Ocak; Agar, Erbil; Senel, Ismet (Springer/Plenum Publishers, 2007)The single crystal X-ray diffraction analysis of the title compound, C14H20N2O3, reveals that the structure is adapted to its zwitterionic form and R-2(2)(12) centrosymmetric dimers are formed by N+ - H center dot center ... -
Crystallographic and conformational analysis of (E)-2-isopropyl-4-(p-tolyldiazenyl)phenol
Iskeleli, Nazan Ocak; Karabiyik, Hasan; Albayrak, Cigdem; Agar, Erbil; Guemruekcueoglu, Ismail Erdem (Springer/Plenum Publishers, 2008)The molecular and crystal structures of the title compound, C(16)H(18)N(2)O, were characterized and determined by single crystal X-ray diffraction method in addition to spectroscopic means such as IR, UV-VIS and (1)H NMR. ... -
Crystallographic and conformational analysis of two novel trans-azo benzene compounds
Karabiyik, Hasan; Petek, Hande; Iskeleli, Nazan Ocak; Albayrak, Cigdem (Springer/Plenum Publishers, 2009)The molecular and crystal structure of (E)-2-Acetyl-4-(2-bromophenyldiazenyl)phenol (1) and (E)-2-Methyl-4-(o-tolyldiazenyl)phenol (2) were characterized and determined by single crystal X-ray diffraction method besides ... -
(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-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)-4-[(4-chlorophenyl)diazenyl]-2-isopropylphenol
Atalay, Sehriman; Petek, Hande; Iskeleli, Nazan Ocak; Agar, Erbil (Int Union Crystallography, 2006)In the title compound, C15H15ClN2O, the aromatic rings adopt a trans configuration with respect to the N = N bond, as found for other diazene derivatives. The crystal structure is stabilized by intermolecular O - H center ... -
Experimental (C-13 NMR, H-1 NMR, FT-IR, single-crystal X-ray diffraction) and DFT studies on 3,4-bis(isoproylamino)cyclobut-3-ene-1,2-dione
Suleymanoglu, Nevin; Ustabas, Resat; Alpaslan, Yelda Bingol; Eyduran, Fatih; Ozyurek, Cengiz; Iskeleli, Nazan Ocak (Pergamon-Elsevier Science Ltd, 2011)In this work, 3,4-bis(isoproylamino)cyclobut-3-ene-1,2-dione C10H16N2O2 (I), was synthesized and characterized by C-13 NMR, H-1 NMR, FT-IR. UV-vis spectroscopy and single-crystal X-ray diffraction. DFT method with 6-31G(d,p) ... -
Experimental and density functional theory studies on (E)-2-[(2-(hydroxymethyl)phenylimino)methyl]benzene-1,4-diol
Alpaslan, Yelda Bingol; Alpaslan, Gokhan; Agar, Aysen Alaman; Iskeleli, Nazan Ocak; Oztekin, Emin (Elsevier Science Bv, 2011)The Schiff base compound (E)-2-[(2-(hydroxymethyl)phenylimino)methyllbenzene-1,4-diol has been synthesized and characterized by H-1 NMR, C-13 NMR, IR, UV-Vis and single-crystal X-ray diffraction. Molecular geometry of the ... -
Experimental and theoretical characterization of the 2-(4-bromobenzyl)-5-ethylsulphonyl-1,3-benzoxazole
Zeyrek, Celal Tugrul; Unver, Huseyin; Arpaci, Ozlem Temiz; Polat, Kamran; Iskeleli, Nazan Ocak; Yildiz, Mustafa (Elsevier, 2015)Synthesis, crystal structure, Fourier transform infrared spectroscopy (FT-IR) and quantum mechanical studies of the 2-(4-bromobenzyl)-5-ethylsulphonyl-1,3-benzoxazole (C16H14NO3SBr) have been reported. The molecular structure ... -
Experimental and theoretical investigation of the molecular and electronic structure of 3-ethoxy-4-isopropylaminocyclobut-3-ene-1,2-dione
Suleymanoglu, Nevin; Ustabas, Resat; Alpaslan, Yelda Bingol; Eyduran, Fatih; Iskeleli, Nazan Ocak (Pergamon-Elsevier Science Ltd, 2012)The title compound, 3-ethoxy-4-isopropylaminocyclobut-3-ene-1,2-dione (EIAC) has been synthesized and characterized by NMR, FT-IR, UV-vis spectroscopy and single-crystal X-ray diffraction. The H-1 NMR spectra were recorded ... -
Hydrogen-bridged chelate ring-assisted pi-stacking interactions
Karabiyik, Hasan; Karabiyik, Hande; Iskeleli, Nazan Ocak (Int Union Crystallography, 2012)A salicylideneaniline (SA) derivative, (6Z)-6-({[2-(hydroxymethyl)phenyl]amino}methylidene)-3,5-dimethoxycyclohexa-2,4-dien-1-one monohydrate, has an increased aromaticity within its hydrogen-bridged chelate ring owing to ... -
Mesomeric effect on the structural and electronic properties of 4-(2-tert-butyl-4-methylphenoxy)phthalonitrile
Karabiyik, Hasan; Agar, Aysen Alaman; Iskeleli, Nazan Ocak (Springer/Plenum Publishers, 2010)The molecular and crystal structures of the title compound, C19H18N2O, were determined and characterized by single crystal X-ray diffraction and spectroscopic methods. Details of the molecular geometry imply that there is ...
