Yazar "Demir, Sibel" için listeleme
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2-(1-phenylethylideneamino) guanidine
Demir, Sibel; Dincer, Muharrem; Saripinar, Emin (Int Union Crystallography, 2006)The title compound, C9H12N4, is planar. The crystal packing is mainly stabilized by intramolecular and intermolecular N - H center dot center dot center dot N and C - H center dot center dot center dot N hydrogen-bonding ... -
5,5 '-Pyridine-2,6-diylbis[4-ethyl-2,4-dihydro-1,2,4-triazole-3(2H)-thione]
Demir, Sibel; Dincer, Muharrem; Cetin, Ahmet; Dayan, Osman; Cansiz, Ahmet (Int Union Crystallography, 2006)In the title compound, C13H15N7S2, the two triazole rings are twisted away from the central pyridine ring by 11.7 (2) and 41.8 (1)degrees. Inversion-related mol-ecules are linked by N-H center dot center dot center dot S ... -
Bazı siklobütan, pirazol bazlı organik bileşiklerin x- ışını ve teorik yöntemlerle kristal yapı analizi / Sibel Demir; Danışman Muharrem Dinçer
Demir, Sibel (Ondokuz Mayıs Üniversitesi, Fen Bilimleri Enstitüsü, 2012)Bu tez COH(I), C25H20N4O2(II), C23H22ClN3OS(III),C21H20ClN3O2S (IV), C21H20ClN3OS2 (V), C23H22ClN3OS (VI), C25H23N3OS H2O (VII)ve C24H28N4S(VIII) organik moleküllerin X-ı ını kristal yapı analizlerini ve hesaplamalıyöntemlerle ... -
Effect of life and social science courses presented in primary school curriculum on preparation of students for science learning
Gunes, Tohit; Demir, Sibel (Hacettepe Univ, 2007)In this study, effect of life and social science courses presented in primary school curriculum on preparation of students for science learning has been investigated. For this purpose, the questionnaires have been applied ... -
An experimental and theoretical approach to molecular structure of 4-benzoyl-5-phenyl-1-p-methoxyphenyl-1H-pyrazole-3-carboxylic acid methanol solvate
Demir, Sibel; Dincer, Muharrem; Korkusuz, Elif; Yildirim, Ismail (Elsevier Science Bv, 2010)The title compound, 4-benzoyl-5-phenyl-1-p-methoxyphenyl-1H-pyrazole-3-carboxylic acid (C(24)H(18)N(2)-O(4)), was prepared from the reaction of 4-methoxyphenylhydrazine with 4-benzoyl-5-phenyl-2,3-dihy-dro-2,3-furandione, ... -
Experimental and theoretical investigation of the molecular and electronic structure of N '-benzylidene-N-[4-(3-methyl-3-phenyl-cyclobutyl)-thiazol-2-yl]-chloro-acetic acid hydrazide
Demir, Sibel; Dincer, Muharrem; Cukurovali, Alaaddin; Yilmaz, Ibrahim (Wiley, 2012)The title compound, N'-benzylidene-N-[4-(3-methyl-3-phenyl-cyclobutyl)-thiazol-2-yl]-chloro-acetic acid hydrazide, has been synthesized and characterized by elemental analysis, IR, 1H and 13C NMR, and X-ray single crystal ... -
İlköğretim programında okutulmakta olan hayat bilgisi derslerinin, öğrencileri fen bilgisi derslerine hazırlamadaki etkileri / Sibel Demir; Danışman Tohit Güneş
Demir, Sibel (Ondokuz Mayıs Üniversitesi, Sosyal Bilimler Enstitüsü, 2006)Bu çalışmada ilköğretim programında okutulmakta olan hayat bilgisi derslerinin öğrencileri fen bilgisi dersine hazırlamadaki etkileri araştırılmıştır.Bu amaçla örneklem içerisindeki öğretmen ve öğrencilere anket ... -
Molecular structure and vibrational and chemical shift assignments of 6-(2-hydroxyethyl)-2,3,4-triphenyl-2,6-dihydro-7H-pyrazolo[3,4-d]pyridazin-7-one by DFT and ab initio HF calculations
Demir, Sibel; Dincer, Muharrem; Sahan, Emine; Korkusuz, Elif; Yildirim, Ismail (Elsevier Science Bv, 2011)The molecular geometry, vibrational frequencies, gauge including atomic orbital (CIAO) H-1 and C-13 chemical shift values and several thermodynamic parameters of 6-(2-hydroxyethyl)-2,3,4-triphenyl-2,6-dihydro-7H-pyrazolo ... -
N-[4-(3-Methyl-3-phenyl-cyclobutyl)-thiazol-2-yl]-N'-pyridin-2-ylmethylene-chloro-acetic acid hydrazide: Synthesis and configurational assignment based on X-ray, H-1, and C-13 NMR and theoretical calculations
Demir, Sibel; Dincer, Muharrem; Cukurovali, Alaaddin; Yilmaz, Ibrahim (Maik Nauka/Interperiodica/Springer, 2017)In this study, quantum chemical calculations based on the density functional theory have been carried out to examine the effects of N-[4-(3-methyl-3-phenyl-cyclobutyl)-thiazol-2-yl]-N'-pyridin-2-ylmethylene- chloro-acetic ... -
A novel 3-acetoxy-2-methyl-N-(4-methoxyphenyl)benzamide: Molecular structural describe, antioxidant activity with use X-ray diffractions and DFT calculations
Demir, Sibel; Cakmak, Sukriye; Dege, Necmi; Kutuk, Halil; Odabaşoğlu, Mustafa; Kepekci, R. Aysun (Elsevier, 2015)In this work, the structure of a novel 3-acetoxy-2-methyl-N-(4-methoxyphenyl) benzamide, was analyzed both experimentally and theoretically using three methods, X-ray single crystal diffraction technique, IR spectroscopy, ... -
Synthesis of complexes Fe, Co and Cu supported by "SNS" pincer ligands and their ability to catalytically form cyclic carbonates
Sogukomerogullari, Hatice Gamze; Aytar, Emine; Ulusoy, Mahmut; Demir, Sibel; Dege, Necmi; Richeson, Darrin S.; Soenmez, Mehmet (Elsevier Science Sa, 2018)Two pincer ligands, 2,6-bis[[(2'-methylphenyl)thio]methyl]pyridine (SNS-1) and 2,6-bis[[(20,6'-dimethylphenyl) thio]methyl]pyridine (SNS-2), each possessing a central pyridyl N-donor flanked by two thioether S-Ar functionalities ... -
Synthesis, crystal structure analysis, spectral IR, NMR UV-Vis investigations, NBO and NLO of 2-benzoyl-N-(4-chlorophenyl)-3-oxo-3-phenylpropanamide with use of X-ray diffractions studies along with DFT calculations
Demir, Sibel; Sarioglu, Ahmet Oral; Guler, Semih; Dege, Necmi; Sonmez, Mehmet (Elsevier Science Bv, 2016)The title compound, 2-benzoyl-N-(4-chlorophenyl)-3-oxo-3-phenylpropanamide compound (C22H16NO3Cl) has been synthesized and characterized by X-ray diffraction, IR, H-1 and C-13 NMR and UV-Vis spectra. Optimized geometrical ... -
Tek kristal x-ışınları kırınım yöntemi ile C21H22N2O6.H2O, C16H21CIO, C23H19N7S2, C13H15N7S2 ve C9H12N4 kristallerinin yapı analizleri / Sibel Demir; Danışman Muharrem Dinçer
Demir, Sibel (Ondokuz Mayıs Üniversitesi, Fen Bilimleri Enstitüsü, 2006)Bu çalışmada 5-Karboksilat-5-hidroksi-4(4-metoksibenzol)-3-(4-metoksifenil)-1,1-dimetil-4,5-dihidro-1H-payrazol-1-immonohidrat (C21H22N2O6.H2O),2-Kloro-1-(3-mesitil-3 metilsiklobütil)-etanon (C16H21CIO), 4,4'-Dibenzil-5, ... -
Vibrational spectroscopic studies, NMR, HOMO-LUMO, NLO and NBO analysis of 1-(2-nitrobenzoyl)-3,5-diphenyl-4,5-dihydro-1H-pyrazole with use X-ray diffractions and DFT calculations
Demir, Sibel; Tinmaz, Feyza; Dege, Necmi; Ilhan, Ilhan Ozer (Elsevier, 2016)The crystal and molecular structure of the title compound, 1-(2-nitrobenzoyl)-3,5-diphenyl-4,5-dihydro-1H-pyrazole, was reported and confirmed by single crystal X-ray diffraction and spectroscopic data. The structure, ...
