Yazar "Kastas, Gokhan" için listeleme
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Analysis of tautomeric equilibrium in (E)-4,6-dibromo-2-[(4-fluorophenylimino)methyl]-3-methoxyphenol compound
Kastas, Cigdem Albayrak; Kastas, Gokhan; Gur, Mahmut; Muglu, Halit; Büyükgüngör, Orhan (Pergamon-Elsevier Science Ltd, 2015)In this study, the tautomeric equilibrium between the phenol-imine and keto-amine structural forms of (E)-4,6-dibromo-2-[(4-fluorophenylimino)methyl]-3-methoxyphenol compound has been investigated with experimental (XRD, ... -
Butylammonium sulfadiazinate monohydrate
Heren, Zerrin; Pasaoglu, Humeyra; Kastas, Gokhan (Int Union Crystallography, 2006)In the title compound, C4H12N+center dot C10H11N4O2S-center dot H2O, the bond distances and angles around the S atom correspond to a distorted tetrahedral geometry. The crystal packing is stabilized by N-H center dot center ... -
Coordination Dimer of Pyromellitic Acid Based on Supramolecular Architecture
Pasaoglu, Humeyra; Aycan, Tugba; Kastas, Gokhan (Int Union Crystallography, 2013)… -
Existence of a resonance hybrid structure as a result of proton tautomerism in (+/-)-(E)-4-Bromo-2-[(2,3-dihydroxypropylimino)methyl]phenol racemate
Albayrak, Cigdem; Kastas, Gokhan; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan (Pergamon-Elsevier Science Ltd, 2014)o-Hydroxy Schiff bases have two tautomers known as phenol-imine and keto-amine forms. In the present work, the tautomerism in (E)-4-Bromo-2-[(2,3-dihydroxypropylimino)methyl]phenol compound has been investigated by ... -
First homo- and hetero-nuclear complexes of a chemical messenger-histamine: Cu(II) complex being a supramolecular assembly based on hydrogen bond, Ni(II)center dot center dot center dot pi and C-H center dot center dot center dot pi non-covalent interactions
Kastas, Gokhan; Pasaoglu, Humeyra; Karabulut, Bunyamin (Pergamon-Elsevier Science Ltd, 2011)In this study, the first homo- and hetero-nuclear cyanocomplexes of histamine (His), namely, [Cu(His)(2)] [Ni(CN)(4)], [Ni(His)(2)Ni(CN)(4)](n) and [Cd(His)Ni(CN)(4)](n) are investigated by X-ray diffraction (XRD) technique, ... -
Hydrogen bonded networks and a self-assembled 1D water cluster in nickel(II) and copper(II)-orotate complexes
Yeşilel, Orkan Zafer; Erer, Hakan; Kastas, Gokhan; Kani, Ibrahim (Pergamon-Elsevier Science Ltd, 2010)Three Ni(II) and Cu(II)-orotate complexes with 1,3-propanediamine (pen) and N-methylethylenediamine (nmen), [Ni(HOr)(H2O)(2)(pen)] (1), [Cu-2(mu-HOr)(2)(pen)(2)] (2) and {[Cu(mu-HOr)(nmen)]center dot 3H(2)O}(n) (3) (H(3)Or ... -
Investigating the prototropic tautomerism in (E)-2-[(4-fluorophenyl)iminomethyl]-5-methoxyphenol compound for solid state and solvent media by experimental and quantum computational tools
Kastas, Gokhan (Elsevier Science Bv, 2012)The tautomerism in o-Hydroxy Schiff bases appears as a result of intramolecular proton transfer between the phenolic oxygen atom and nitrogen atom. This process results in two tautomeric forms (phenol-imine and keto-amine). ... -
Investigation of two o-hydroxy Schiff bases in terms of prototropy and radical scavenging activity
Kastas, Cigdem Albayrak; Kastas, Gokhan; Guder, Aytac; Gur, Mahmut; Muglu, Halit; Büyükgüngör, Orhan (Elsevier Science Bv, 2017)Two Schiff bases, namely (E)-4,6-dibromo-3-methoxy-2-[(phenylimino)methyl]phenol (1) and (Z)-2,4-dibromo-6-[(4-buthylphenylamino)methylene]-5-methoxycyclohexa-2,4-dienone (2), have been investigated by considering solvent, ... -
Magnetic, structural and computational studies on transition metal complexes of a neurotransmitter, histamine
Kastas, Gokhan; Pasaoglu, Humeyra; Karabulut, Bunyamin (Elsevier, 2011)In this study, the transition metal complexes of histamine (His) prepared with oxalate (Ox), that is, [Cu(His) (Ox)(H2O)], [Zn(His)(Ox)(H2O)] (or [Zn(His)(Ox)]center dot(H2O)), [Cd(His)(Ox)(H2O)(2)] and [Co(His)(Ox)(H2O)], ... -
Mono-, di-, poly-nuclear and one-, two- and three-dimensional Ag(I) Saccharinate Complexes with diamine ligands: Syntheses, Thermal Analyses, Crystal Structures and Antimicrobial Properties.
Kastas, Gokhan; Pasaoglu, Humeyra; Yeşilel, Orkan Zafer; Darcan, Cihan; Mutlu, Aylin; Büyükgüngör, Orhan (Int Union Crystallography, 2009)… -
The novel polymeric complex of manganese(II) with picolinic acid, [Mn(pic)(2)](n), a new coordination mode for picolinic acid
Heren, Zerrin; Pasaoglu, Humeyra; Kastas, Gokhan; Keser, Cem; Yeşilel, Orkan Zafer; Büyükgüngör, Orhan (Wiley-V C H Verlag Gmbh, 2006)A manganese(II) complex with novel coordination mode of picolinic acid (pic) has been synthesized and characterized by elemental analysis, magnetic susceptibility, FT-IR, thermal analysis (DTA and TG) and X-ray diffraction ... -
Probing the compound (E)-2-[(4-bromophenylimino)methyl]-6-ethoxyphenol mainly from the point of tautomerism in solvent media and the solid state by experimental and computational methods
Albayrak, Cigdem; Kastas, Gokhan; Odabaşoğlu, Mustafa; Büyükgüngör, Orhan (Elsevier Science Bv, 2011)In this study, (E)-2-[(4-bromophenylimino)methyl]-6-ethoxyphenol compound was investigated by mainly focusing on stacking interactions assembling the supramolecular network of the compound and on tautomerism in solvent ... -
Probing the compound (E)-5-(diethylamino)-2-[(4-methylphenylimino)methyl]phenol mainly from the point of tautomerism in solvent media and the solid state by experimental and computational methods
Albayrak, Cigdem; Kastas, Gokhan; Odabaşoğlu, Mustafa; Frank, Rene (Pergamon-Elsevier Science Ltd, 2011)In this study, the molecular structure and spectroscopic properties of (E)-5-(diethylamino)-2-[(4-methylphenylimino)methyl]phenol were characterized experimentally by X-ray diffraction, FT-IR and UV-vis spectroscopic ... -
Single stranded helical chains of C-H center dot center dot center dot pi interactions further connected by halogen-halogen interactions of type I to construct supramolecular structure of (E)-5-(diethylamino)-2-[(4-iodophenylimino)methyl]phenol compound
Kastas, Gokhan; Albayrak, Cigdem; Odabaşoğlu, Mustafa; Frank, Rene (Pergamon-Elsevier Science Ltd, 2012)In this study, (E)-5-(diethylamino)-2-[(4-iodophenylimino)methyl]phenol compound was investigated from the point of stacking interactions assembling the supramolecular network, conformational isomerism and tautomerism. For ... -
Supramolecular Structure Constructed by Coordination Dimer of Pyromellitate Ligand
Aycan, Tugba; Pasaoglu, Humeyra; Kastas, Gokhan (Int Union Crystallography, 2013)… -
Supramolecular Structures Constructed by Connection of One-Dimensional Polymer Chains Through the Dimeric Water Clusters in Coordination Polymers of Pyromellitate Ligand
Kastas, Gokhan; Aycan, Tugba Ak; Pasaoglu, Humeyra; Kocabiyik, Can; Karabulut, Bunyamin (Springer, 2012)Three mixed-ligand coordination polymers [Cu(H(2)pm)(na)(2)(H2O)(2)] (n) center dot 4nH(2)O (1), [Ni(H(2)pm)(pa)(2)] (n) center dot 4nH(2)O (2), [Co(H(2)pm)(pa)(2)] (n) center dot 4nH(2)O (3) (H(2)pm = dianion of pyromellitic ... -
Survey of conformational isomerism in (E)-2-[(4-bromophenolimino)methyl]-5-(diethylamino)phenol compound from structural and thermochemical points of view
Albayrak, Cigdem; Kastas, Gokhan; Odabaşoğlu, Mustafa; Frank, Rene (Pergamon-Elsevier Science Ltd, 2012)In this study, (E)-2[(4-bromophenylimino)methyl]-5-(diethylamino)phenol compound was investigated by mainly focusing on conformational isomerism. For this purpose, molecular structure and spectroscopic properties of the ... -
Synthesis, Crystal Structure and Spectral Studies of M(hsm)(2)(sac)(2) complexes (M=Cu, Ni and Cd)
Kastas, Gokhan; Pasaoglu, Humeyra; Bulut, Iclal (Int Union Crystallography, 2006)… -
Synthesis, spectral and thermal properties, and crystal structure of bis(ethylenediamine)(aqua)copper(II) (bis)syringate ethylenediamine dihydrate [Cu(en)(2)(H2O)](sy)(2)(en)(H2O)(2)
Heren, Zerrin; Pasaoglu, Humeyra; Kastas, Gokhan; Vurucu, Leyla; Büyükgüngör, Orhan (Walter De Gruyter Gmbh, 2006)The complex [Cu(en)(2)(H2O)](sy)(2)(en)(H(2)O())2 has been synthesized and characterized by its electronic and vibrational spectra. The molecular structure of the complex has been determined by X-ray diffraction methods. ...
