Browsing by Author "Ucar, Ibrahim"
Now showing items 1-20 of 53
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25,27-bis(acryloyloxy)-5,11,17,23-tetra-tert-butyl-26,28-dihydroxycalix[4]arene
Oezkinali, Sevil; Ucar, Ibrahim; Kocaokutgen, Hasan; Bulut, Ahmet (Blackwell Publishing, 2007)The title compound, C50H60O6, is a new p-tert-butylcalix[4]arene derivative, adopting a 1,3-alternate conformation, with the complete molecule generated by twofold rotation symmetry. In the crystal structure, the molecules ... -
Aqua(di-2-pyridylamine-kappa 2 N 2,N 2')(pyridine-2,6-dicarboxylato-kappa 3 O 2,N,O 6)zinc monohydrate
Durkaya, Figen; Dege, Necmi; Demirtas, Gunes; Ucar, Ibrahim (Wiley-Blackwell, 2011)In the title compound, [Zn(C7H3NO4)(C10H9N3)(H2O)]center dot H2O, the ZnII atom has a distorted octahedral coordination geometry. One of the water molecules is coordinated with the ZnII ion and this molecule forms an O-H...O ... -
Aqua(N,N-diethylethylenediamine-kappa N-2,N ')(pyridine-2,6-dicarboxylato-kappa N-3,O,O ')nickel(II) 2.5-hydrate
Ucar, Ibrahim; Bulut, Ahmet; Kazak, Canan (Int Union Crystallography, 2007)In the title compound, [Ni(C7H3NO4)(C6H16N2)(H2O)]center dot 2.5H(2)O, the discrete neutral [Ni(dpc)(dien)(H2O)] ( dien is diethylethylenediamine and dpc is dipicolinate) complex lies on a mirror plane. The Ni-II ion is ... -
Bis[2-(2-pyridylamino)pyridinium] squarate dihydrate
Ucar, Ibrahim; Bulut, Ahmet; Büyükgüngör, Orhan (Blackwell Publishing, 2007)In the title compound, 2C(10)H(10)N(3)(+)center dot C4O42-center dot 2H(2)O, the squarate dianion is centrosymmetric. The organic cation shows an unusual, approximately symmetrical, intramolecular N center dot center dot ... -
Cobalt dipicolinate complexes with nicotinamide and isonicotinamide ligands: Syntheses, crystal structures, spectroscopic, thermal and voltammetric studies
Ucar, Ibrahim; Bulut, Ahmet; Karadag, Ahmet; Kazak, Canan (Elsevier, 2007)Two new dipicolinate complexes of cobalt, [Co(dpc)(na)(H2O)(2)].H2O (1) and [Co(dpc)(ina)(H2O)(2)] (2) [dpc is dipicolinate or pyridine-2,6-dicarboxylate, na is nicotinamide and ina is isonicotinamide], have been prepared ... -
A combined crystallographic, spectroscopic, antimicrobial, and computational study of novel dipicolinate copper(II) complex with 2-(2-hydroxyethyl)pyridine
Tamer, Omer; Sariboga, Bahtiyar; Ucar, Ibrahim (Springer/Plenum Publishers, 2012)Novel dipicolinate complex of copper(II) ion, [Cu(hepy)(dpc)H2O] [hepy: 2-(2-hydroxyethyl)pyridine; dpc: dipicolinate or pyridine-2,6-dicarboxylate], was prepared and fully characterized by single crystal X-ray structure ... -
Combined experimental and theoretical approaches to the molecular structure of 4-(1-formylnaphthalen-2-yloxy)phthalonitrile
Tereci, Hidayet; Askeroglu, Iskender; Akdemir, Nesuhi; Ucar, Ibrahim; Büyükgüngör, Orhan (Pergamon-Elsevier Science Ltd, 2012)The novel compound 4-(1-formylnaphthalen-2-yloxy)phthalonitrile, C19H10N2O2, has been synthesized and characterized by IR, UV-vis, NMR and X-ray single-crystal determination. The title compound, is built up from two planar ... -
A combined theoretical and experimental study of chelidamate cadmium (II) complex, [Cd-2(dpa)(2)(chel)(2)]center dot 2[Cd(dpa)(chel)]center dot 6H(2)O
Vural, Hatice; Ucar, Ibrahim (Pergamon-Elsevier Science Ltd, 2015)A new chelidamate complex of Cd (II) ion, [Cd-2(dpa)(2)(chel)(2)]center dot 2[Cd(dpa)(chel)]center dot 6H(2)O [(chel: chelidamate or 4-hydroxypyridine-2,6-dicarboxylate, dpa: di (2-picolyl)amine)] was synthesized and ... -
Crystal structure and EPR studies of doped Cu2+ ion in [Zn(sac)(2)(en)(2)] single crystal
Karabulut, Buenyamin; Ucar, Ibrahim; Koksal, Fevzi; Yerli, Yusuf (Pergamon-Elsevier Science Ltd, 2010)The tran-bis(ethylenediamine)bis(saccharinato)Zinc(II), (Zn(sac)(2)(en)(2)] (ZSED), (en: ethylenediamine and sac: saccharinate) complex has been synthesized and its crystal structure has been determined by X-ray diffraction ... -
Crystal structure and EPR studies of mixed ligand complex of cobalt(II) with saccharin and ethylisonicotine
Ucar, Ibrahim; Karabulut, Buenyamin; Bulut, Ahmet; Büyükgüngör, Orhan (Pergamon-Elsevier Science Ltd, 2008)The tetraaquabis(ethylisonicotinate)cobalt(II) disaccharinate, [Co(ein)(2)(H2O)(4)]center dot(sac)(2), (CENS), (ein: ethylisonicotinate and sac: saccharinate) complex has been synthesized and its crystal structure has been ... -
Crystal structure, spectroscopic and redox properties of copper(II) Bis{2-[(2,6-dimethylphenyl)iminomethyl-3-methoxyphenolate]}
Kasumov, Veli T.; Ucar, Ibrahim; Bulut, Ahmet; Koeksal, Fevzi (Verlag Z Naturforsch, 2007)The coordination chemistry of N-(2,6-di-methylphenyl)-2-hydroxy-3-methoxybenzaldimine (1) with Cu(II) has been investigated by X-ray crystallography, electronic and EPR spectroscopies, as well as by electro- and magnetochemistry. ... -
Diaquabis(ethylenediamine-kappa N-2,N ')copper(II) 2,2 '-dithiodinicotinate sesquihydrate
Yazicilar, Turan Kaya; Demir, Serkan; Ucar, Ibrahim; Kazak, Canan (Wiley-Blackwell, 2009)In the title compound, [Cu(C2H8N2)(2)](C12H6N2O4S2)center dot 1.5H(2)O, there are two half-molecules of the cationic complex in the asymmetric unit. The Cu2+ ions lie on inversion centres and are octahedrally coordinated ... -
(E)-4-(4-Bromophenyldiazenyl)-2,6-dimethylphenyl acrylate and (E)-2,6-dimethyl-4-(4-methylphenyl-diazenyl)phenyl acrylate
Kocaokutgen, Hasan; Ucar, Ibrahim; Gur, Mahmut; Ozkinali, Sevil; Büyükgüngör, Orhan (Blackwell Publishing, 2007)The crystal structures of the title compounds, C17H15BrN2O2, (I), and C18H18N2O2, (II), determined at room temperature, have a trans configuration with respect to the diazene linkage, as found for other azo (diazene) ... -
(E)-4-(4-Ethylphenyldiazenyl)-2,6-dimethylphenyl acrylate
Ucar, Ibrahim; Kocaokutgen, Hasan; Ozkinali, Sevil; Gur, Mahmut; Büyükgüngör, Orhan (Blackwell Publishing, 2007)The title compound, C19H20N2O2, has a trans configuration with respect to the diazene double bond. The dihedral angle between the planes of the two aromatic rings is 2.92 (3)degrees. -
EPR study of Cu(2+)-doped tetraaqua-di(nicotinamide) Co(II) saccharinate single crystals
Bozkurt, Esat; Kartal, Ibrahim; Karabulut, Buenyamin; Ucar, Ibrahim (Pergamon-Elsevier Science Ltd, 2008)The electron paramagnetic resonance spectra of Cu(2+) impurities in [Co(nicotinamide)(2)(H(2)O)(4)](saccharinate)(2) single crystals have been studied at ambient temperature in three mutually perpendicular planes. The ... -
An experimental and theoretical approach of spectroscopic and structural properties of a new chelidamate copper (II) complex
Vural, Hatice; Ucar, Ibrahim; Soylu, M. Serkan (Pergamon-Elsevier Science Ltd, 2014)The crystal structure of new chelidamate complex of copper (II) ion, [Cu(chel)H2O(pym)]center dot H2O [chel: chelidamate or 4-hydroxypyridine-2,6-dicarboxylate; pym: 2-Pyridylmethanol] has been determined by single crystal ... -
A mixed experimental and theoretical study on chelidamate copper(II) complex with 4-methylpyrimidine
Vural, Hatice; Ucar, Ibrahim (Taylor & Francis Ltd, 2016)A new chelidamate complex, [Cu(chel)(H2O)(2)(mpd)] (chel=chelidamate; mpd=4-methylpyrimidine), has been synthesized and characterized through a combination of single crystal X-ray analysis, electron paramagnetic resonance ... -
Molecular structure and EPR spectra studies of saccharinate complexes with 4-acetylpyridine
Celik, Yunus; Bozkurt, Esat; Ucar, Ibrahim; Karabulut, Bunyamin (Pergamon-Elsevier Science Ltd, 2012)The crystal structures of [co(4-acpy)(2)(H2O)(4)] (sac)(2) (1) and [Zn(4-acpy)(2)(H2O)(4)] (sac)(2) (2) (4-acpy: 4-acetylpyridine, sac: saccharinate) complexes have been investigated by X-ray diffraction techniques. The ... -
Molecular structures and spectroscopic studies of cationic metal-methylisonicotinate complexes with saccharinate counterions
Bozkurt, Esat; Ayaz, Huseyin; Ucar, Ibrahim; Karabulut, Bunyamin (Elsevier Science Sa, 2012)The crystal structures of [Co(methylisonicotinate)(2)(H2O)(4)](saccharinate)(2) and [Ni(methylisonicotinate)(2)(H2O)(4)](saccharinate)(2) complexes have been synthesized and characterized by spectroscopic, EPR and X-ray ... -
mu-Squarato-k(2)O(1): O-2-bis{[2-(2-aminoethyl) pyridine-k(2)N,N ']aquanickel(II)} squarate 0.25-hydrate
Bekdemir, Yunus; Ucar, Ibrahim; Büyükgüngör, Orhan (Int Union Crystallography, 2008)The asymmetric unit of title compound, [Ni-2(C4O4)-(C7H10N2)(4)(H2O)(2)]C4O4 center dot 0.25H(2)O, contains one-half of a squarate ligand, one-half of an uncoordinated squarate dianion, two 2-(2-aminoethyl) pyridine ligands ...
