Yazar "Koysal, Yavuz" için listeleme
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3,3 '-Diisopropyl-4,4 '-(hexane-1,6-diyl)bis-[1H-1,2,4-triazol-5(4H)-one] dihydrate
Koysal, Yavuz; Isik, Samil; Sancak, Kemal; Unver, Yasemin (Int Union Crystallography, 2006)The triazole molecule of the title dihydrate, C16H28N6O2.-2H(2)O, possesses a crystallographically imposed centre of symmetry and shows normal values of bond lengths and angles. The uncoordinated water molecules are involved ... -
3-[2-(2-thienyl)ethoxy]phthalonitrile
Koysal, Yavuz; Isik, Samil; Iskeeli, Nazan Ocak; Durmus, Mahmut; Ahsen, Vefa (Blackwell Publishing, 2006)In the title compound, C14H10N2OS, the thienyl and phthalonitrile planes make a dihedral angle of 57.92 (2)degrees. -
4-(2,3-Dihydroxybenzylideneamino)-3-methyl-1H-1,2,4-triazol-5(4H)-one
Tanak, Hasan; Koysal, Yavuz; Yavuz, Metin; Isik, Samil; Gul, Guelsah (Wiley-Blackwell, 2009)All the non-H atoms of the title compound, C(10)H(10)N(4)O(3), are almost coplanar, the maximum deviation from planarity being 0.065 (3) angstrom. The dihedral angle between the aromatic rings is 1.66 (6)degrees. The ... -
4-(4-Methoxyphenethyl)-3-methyl-1H-1,2,4-triazol-5(4H)-one
Koysal, Yavuz; Tanak, Hasan; Unluer, Dilek; Isik, Samil (Int Union Crystallography, 2010)The dihedral angle between the two rings in the title compound, C12H15N3O2, is 49.03 (1)degrees. The crystal structure is stabilized by intermolecular N-H...O and C-H...O hydrogen bonds and pi-pi stacking interactions ... -
Crystal structure and computational studies of (3Z)-4-benzoyl-3-[(2,4-dinitrophenyl)hydrazinylidene]-5-phenylfuran-2(3H)-one
Koysal, Yavuz; Bulbul, Hakan; Ilhan, Ilhan Ozer; Akin, Nazenin; Dege, Necmi (Int Union Crystallography, 2016)In the molecular structure of the title compound, C23H14N4O7, the furan, dinitrophenyl and phenyl rings are almost in the same plane (r.m.s. deviation = 0.127 angstrom), with the benzoyl ring inclined by a dihedral angle ... -
Crystal structure and computational studies of (E)-1-(benzo[b]thiophen-3-yl)-N-(4-ethoxyphenyl)methanimine
Bulbul, Hakan; Koysal, Yavuz; Dogan, Onur Erman; Dege, Necmi; Agar, Erbil (Pleiades Publishing Inc, 2019)The title compound, C17H15NOS, crystallizes in the orthorhombic sp. gr. Pca2(1). Two molecules in the asymmetric unit have similar structure. Crystal structure contains weak C-H center dot center dot center dot O intermolecular ... -
Crystal structure and computational study of 2,4-dichloro-N-[(E)-(5-nitrothiophen-2-yl)methylidene]aniline
Koysal, Yavuz; Bulbul, Hakan; Gumus, Sumeyye; Agar, Erbil; Soylu, Mustafa Serkan (Int Union Crystallography, 2016)The title compound, C11H6Cl2N2O2S, is a Schiff base that incorporates an N-bound 2,4-dichlorophenyl and a C-bound 5-nitrothiophene ring. The molecule is approximately planar, the maximum deviation from the mean plane being ... -
Crystal structure of (E)-3-((naphthalen-1-ylimino) methyl)-4-nitrophenol, C17H12N2O3
Bulbul, Hakan; Koysal, Yavuz; Macit, Mustafa; Yaman, Rukiye; Dege, Necmi (Walter De Gruyter Gmbh, 2017)C17H12N2O3, monoclinic, P2(1)/c (no. 14), a = 7.2641(5) angstrom, b= 12.3968(6) angstrom, c= 16.1786(13) angstrom, beta = 108.200(6)degrees, V = 1384.02(16) angstrom(3), Z = 4, R-gt(F)= 0.0905, wR(ref)(F-2)= 0.1928, T = 293(2) K. -
Crystal structure of (E)-4-nitro-2-((2-phenoxy-phenylimino)methyl)phenol, C19H14N2O4
Koysal, Yavuz; Bulbul, Hakan; Kantar, Esen Nur; Coskun, Emine; Sahin, Songul; Dege, Necmi (Walter De Gruyter Gmbh, 2017)C19H14N2O4, monoclinic, P2(1)/c (no. 14), a = 11.8219(12) angstrom, b = 6.1210(4) angstrom, c = 22.356(2) angstrom, beta = 94.403(8)degrees, V = 1612.9(3) angstrom(3), Z = 4, R-gt(F) = 0.0545, wR(ref)(F-2) = 0.0938, T = 293(2) K. -
Crystal structure of 2-{[2-methoxy-5-(trifluoromethyl)phenyl]iminomethyl}-4-nitrophenol
Karadayi, Nevzat; Sahin, Songul; Koysal, Yavuz; Coskun, Emine; Büyükgüngör, Orhan (Int Union Crystallography, 2015)In the title compound, C15H11F3N2O4, the N=C bond of the central imine group adopts an E conformation. The dihedral angle between two benzene rings is 6.2 (2)degrees. There is an intramolecular bifurcated O-H center dot ... -
Crystal structure of 3-(4-methoxyphenyl)-1-(4-methylphenyl)prop-2-en-1-one, C17H16O2
Koysal, Yavuz; Bulbul, Hakan; Ozdemir, Funda; Ilhan, Ilhan Ozer; Dege, Necmi (Walter De Gruyter Gmbh, 2017)C17H16O2, monoclinic, P2(1)/c (no. 14), b = 11.1187(8) angstrom, c = 11.6902(10) angstrom, alpha = 11.6963(12) angstrom, beta = 115.545(7)degrees, V = 1371.7(2) angstrom(3), Z = T = 293 K. -
Crystal structure, spectroscopic investigations and density functional studies of 4-(4-methoxyphenethyl)-5-benzyl-2H-1,2,4-triazol-3(4H)-one monohydrate
Koysal, Yavuz; Tanak, Hasan (Pergamon-Elsevier Science Ltd, 2012)The triazol compound 4-(4-methoxyphenethyl)-5-benzyl-2H-1,2,4-triazol-3(4H)-one monohydrate (I) has been synthesized and characterized by H-1 NMR, C-13 NMR. IR, and X-ray single-crystal determination. The molecular geometry, ... -
(E)-4-bromo-2-[2-(hydroxymethyl)-phenyliminomethyl]phenol
Koysal, Yavuz; Isik, Samil; Agar, Aysen (Blackwell Publishing, 2007)The title compound, C14H12BrNO2, adopt the phenol-imine tautomeric form. The dihedral angle between the aromatic rings is 27.49 (2)degrees. In the structure, there are O - H center dot center dot center dot O intermolecular ... -
Ethyl 4-(3-ethyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-4-yl)benzoate
Unver, Yasemin; Koysal, Yavuz; Tanak, Hasan; Unluer, Dilek; Isik, Samil (Int Union Crystallography, 2010)In the title compound, C13H15N3O3, the dihedral angle between the two aromatic ring is 51.06 (1)degrees. In the crystal, molecules are connected by pairs of N-H center dot center dot center dot O hydrogen bonds into ... -
Evaluation of Energy Efficiency of Thermoelectric Generator with Two-Phase Thermo-Syphon Heat Pipes and Nano-Particle Fluids
Atalay, Tahsin; Koysal, Yavuz; Ozdemir, Ali Ekber; Ozbas, Engin (Korean Soc Precision Eng, 2018)This paper investigates the effects of heat pipes filled with water and nanoparticles (MgO) on electricity generation. The experimental setup comprises of two-phase thermo-syphon heat pipes filled with water or MgO ... -
Experimental and Computational Approaches to the Molecular Structure of 3-(2-Mercaptopyridine)phthalonitrile
Tanak, Hasan; Koysal, Yavuz; Isik, Samil; Yaman, Hanifi; Ahsen, Vefa (Wiley-V C H Verlag Gmbh, 2011)The compound 3-(2-Mercaptopyridine)phthalonitrile has been synthesized and characterized by IR, UV-vis, and X-ray single-crystal determination. The molecular geometry from X-ray determination of the title compound in the ... -
Experimental and DFT computational studies on 5-benzyl-4-(3,4-dimethoxyphenethyl)-2H-1,2,4-triazol-3(4H)-one
Tanak, Hasan; Koysal, Yavuz; Yavuz, Metin; Büyükgüngör, Orhan; Sancak, Kemal (Springer, 2010)The triazole compound, 5-benzyl-4-(3,4-dimethoxyphenethyl)-2H-1,2,4-triazol-3(4H)-one, has been synthesized and characterized by H-1-NMR, C-13-NMR, IR, and X-ray single-crystal determination. The compound crystallizes in ... -
An experimental and DFT computational study on 4-(3-(1H-imidazol-1-yl)propyl)-5-methyl-2H-1,2,4-triazol-3(4H)-one monohydrate
Tanak, Hasan; Koysal, Yavuz; Unver, Yasemin; Yavuz, Metin; Isik, Samil; Sancak, Kemal (Taylor & Francis Ltd, 2010)The triazole compound 4-(3-(1H-imidazol-1-yl)propyl)-5-methyl-2H-1,2,4-triazol-3(4H)-one monohydrate has been synthesised and characterised by H-1-NMR, C-13-NMR, IR, and X-ray single-crystal determination. The compound ... -
Experimental and DFT studies of ethyl N'-3-(1H-imidazol-1-yl) propylcarbamoyl benzohydrazonate monohydrate
Tanak, Hasan; Koysal, Yavuz; Unver, Yasemin; Yavuz, Metin; Isik, Samil; Sancak, Kemal (Springer/Plenum Publishers, 2009)The Imidazole compound, Ethyl N'-3-(1H-imidazol-1-yl) propylcarbamoyl benzohydrazonate monohydrate, has been synthesized and characterized by IR, NMR, electronic spectroscopy, and X-ray single-crystal determination. Molecular ... -
Experimental and Modeling Study on Solar System Using Linear Fresnel Lens and Thermoelectric Module
Koysal, Yavuz; Ozdemir, Ali Ekber; Atalay, Tahsin (Asme, 2018)This work is concerned with an experimental design for generating power from thermoelectric generator (TEG) and linear Fresnel lens collector with one-axis solar tracking system. Main purpose of this experimental design ...
