Browsing by Author "Petek, Hande"
Now showing items 1-16 of 16
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3-Etoksisalisilaldehit türevi bazı schiff bazlarının yapısal özelliklerinin deneysel X-ışını kırınımı ve kuramsal yöntemlerle incelenmesi / Hande Petek ; danışman İsmet Şenel
Petek, Hande (Ondokuz Mayıs Üniversitesi, Fen Bilimleri Enstitüsü, 2010)Özet,Bu tez çalışmasında 3-etoksisalisilaldehitten türetilen, ( Z )- 2 - etoksi-6 -[(2-hidroksifenilamino)metilen]siklohekza - 2 , 4 - dienon], ( E ) - 2 - etoksi - 6 - [ ( 2 -metoksifenilimino)metil]fenol, ( E ... -
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 ... -
Aromaticity balance, pi-electron cooperativity and H-bonding properties in tautomerism of salicylideneaniline: the quantum theory of atoms in molecules (QTAIM) approach
Karabiyik, Hasan; Sevincek, Resul; Petek, Hande; Aygun, Muhittin (Springer, 2011)Topological analysis based on DFT calculations regarding proton transfer reaction in salicylideneaniline (SA) was performed to scrutinize possible changes in the intramolecular H-bond, pi-electron delocalization and ... -
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 [(Z)-2-ethoxy-6-[(2-hydroxyphenylamino)methylene]cyclohexa-2,4-dienone]
Petek, Hande; Albayrak, Cigdem; Odabaşoğlu, Mustafa; Senel, Ismet; Büyükgüngör, Orhan (Springer/Plenum Publishers, 2008)The single crystal X-ray diffraction analysis of the title compound, C15H15NO3, shows that the structure is adopted to its NH tautomeric form and crystallizes in the orthorhombic space group P bcn with a = 21.2424(15) ... -
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-{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)-4-(p-Tolyldiazenyl)phenol
Petek, Hande; Ersahin, Ferda; Albayrak, Cigdem; Agar, Erbil; Senel, Ismet (Blackwell Publishing, 2006)The title compound, C13H12N2O, consisting of two aromatic groups linked through a diazene bridge, exhibits trans geometry with respect to the azo double bond and deviates slightly from planarity. The crystal structure is ... -
(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 ... -
An intermediate structure trapped in solid-state tautomerization process of (E)-4-[(4-chlorophenylimino)methyl]benzene-1,2,3-triol
Karabiyik, Hasan; Ocak-Iskeleli, Nazan; Petek, Hande; Albayrak, Cigdem; Agar, Erbil (Elsevier, 2008)An intermediate structure between the benzenoid and cis-quinoid form of the title compound was trapped in solid-state tautomerization with the aid of O-H center dot center dot center dot O type intermolecular H-bonds leading ... -
PM3 semiempirical study and its comparison with X-ray crystal structure of 2-methyl-4-(4-methoxyphenylazo)phenol
Iskeleli, Nazan Ocak; Karabiyik, Hasan; Albayrak, Cigdem; Petek, Hande; Agar, Erbil (Springer/Plenum Publishers, 2006)The crystal and molecular structure of 2-methyl-4-(4-methoxyphenylazo)phenol have been determined by X-ray single crystal diffraction technique. The compound crystallizes in the monoclinic space group P2(1)/c with a=9.7763(8) ... -
PM3 semiempirical study and its comparison with X-ray crystal structure of 4-[2-methyl-4-(4-methoxyphenylazo)] phenoxyphtalonitrile
Iskeleli, Nazan Ocak; Karabiyik, Hasan; Albayrak, Cigdem; Petek, Hande; Agar, Erbil (Springer/Plenum Publishers, 2006)The molecular and crystal structures of the title compound, C22H16N4O2, were determined by single crystal X-ray diffraction technique. The title compound crystallizes in monoclinic space group P1 2 (1) /n1, with a=12.7811(9) ... -
The proton transfer process observed in the structure analysis and DFT calculations of (E)-2-ethoxy-6-[(2-methoxyphenylimino)methyl]phenol
Petek, Hande; Albayrak, Cigdem; Odabaşoğlu, Mustafa; Senel, Ismet; Büyükgüngör, Orhan (Springer/Plenum Publishers, 2010)The crystal and molecular structures of an o-hydroxy Schiff base derivative, (E)-2-ethoxy-6-[(2-methoxyphenylimino)methyl]phenol, have been determined by single crystal X-ray diffraction analyses at 296 and 100 K. The ... -
Structural and aromatic aspects for tautomerism of (Z)-6-((4-bromophenylamino)methylene)-2,3-dihydroxycyclohexa-2,4-dienone
Karabiyik, Hasan; Petek, Hande; Iskeleli, Nazan Ocak; Albayrak, Cigdem (Springer/Plenum Publishers, 2009)The molecular and crystal structure of (Z)-6-((4-bromophenylamino)methylene)-2,3-dihydroxycyclohexa- 2,4-dienone were determined by single crystal X-ray diffraction and spectroscopic methods. Molecules of the compound can ... -
X-ışınları kırınımı ile C23H13N2O,C21H14N2O,C28H14N4O2S ve C22H18CI2N4 organik moleküllerinin yapı analizleri / Hande Petek; Danışman İsmet Şenel.
Petek, Hande (Ondokuz Mayıs Üniversitesi, Fen Bilimleri Enstitüsü, 2004)Bu çalışmada, [4-(Antrasen-9-ilmetoksi)ftalonitril] (C23H13N2O), (4-Difenilmetoksi ftalonitril) (C21H14N2O), [4, 4'- (4,4'- Tiyodifenoksi)diftalonitril] (C28H14N4O2S),[4- ( 2,4- Diklorobenzilamino) - 3 - fenil - 5 - p - ... -
(Z)-6-[(2-Fluorophenyliminio)methylene]2,3-dihydroxyphenolate
Petek, Hande; Albayrak, Cigdem; Agar, Erbil; Kalkan, Huseyin (Int Union Crystallography, 2006)The title compound, C13H10FNO3, crystallizes in a zwitterionic form. The dihedral angle between the aromatic rings is 21.69 (9)degrees. O-H center dot center dot center dot O hydrogen bonds generate a centrosymmetric ...
