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Öğe Crystal structure and Hirshfeld surface analysis of (3a SR,6 RS,6a SR,7 RS,11b SR,11c RS)-2,2-dibenzyl-2,3,6a,11c-tetra-hydro-1 H,6 H,7 H-3a,6:7,11b-di-epoxy-dibenzo[ de, h]isoquinolin-2-ium tri-fluoro-methane-sulfonate(2021) Atioğlu, Zeliha; Akkurt, Mehmet; Mammadova, Gunay Z.; Mlowe, SixberthIn the cation of the title salt, C30H28NO2 + CF3O3S , the four tetrahydrofuran rings adopt envelope conformations. In the crystal, pairs of cations are linked by dimeric C—H O hydrogen bonds, forming two R2 2(6) ring motifs parallel to the (001) plane. The cations and anions are connected by further C—H O hydrogen bonds, forming a three-dimensional network structure. Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from H H (47.6%), C H/H C (20.6%), O H/H O (18.0%) and F H/H F (9.9%) interactions.Öğe Crystal structure and Hirshfeld surface analysis of 3,3?,3??-[(1,3,5-triazine-2,4,6-triyl)tris(oxy)]tris(5,5-dimethylcyclohex-2-en-1-one)(2018) Atioğlu, Zeliha; Akkurt, Mehmet; Toze, A. A. Flavien; Mammadova, Gunay Z.; Panahova, Humay M.The three cyclohexenone rings of the title compound, C27H33N3O6, adopt slightly distorted envelope conformations, with the C atom bearing two methyl groups as the flap atom in each case. These cyclohexenone mean planes form dihedral angles of 87.41?(11), 70.73?(11) and 70.47?(11)° with the 1,3,5-triazine ring, while the dihedral angle between the cyclohexenone mean planes are 57.52?(12), 23.75?(12) and 53.21?(12)°. In the crystal, molecules are linked via C—H...O hydrogen bonds, forming a three-dimensional network.Öğe Crystal structure and Hirshfeld surface analysis of 5, 7-diphenyl-1, 2, 3, 5, 6, 7-hexahydroimidazo [1, 2-a] pyridine-6, 6, 8-tricarbonitrile methanol monosolvate(2021) Naghiyev, Farid N; Mammadova, Gunay Z.; Khalilov, Ali N.; Atioğlu, Zeliha; Akkurt, Mehmet; Akobirshoeva, AA; Mamedov, İGIn the title compound, C22H17N5·CH4O, the imidazolidine ring of the 1,2,3,5,6,7-hexahydroimidazo[1,2-a]pyridine ring system is a twisted envelope, while the 1,2,3,4-tetrahydropyridine ring adopts a twisted boat conformation. In the crystal, pairs of molecules are linked by O—H?N and N—H?O hydrogen bonds via two methanol molecules, forming a centrosymmetric R44(16) ring motif. These motifs are connected to each other by C—H?N hydrogen bonds and form columns along the a axis. The columns form a stable molecular packing, being connected to each other by van der Waals interactions. A Hirshfeld surface analysis indicates that the most significant contributions to the crystal packing are from H?H (43.8%), N?H/H?N (31.7%) and C?H/H?C (18.4%) contacts.Öğe (E)-1-(2,6-Dichlorophenyl)-2-(3-nitrobenzylidene)hydrazine: crystal structure and Hirshfeld surface analysis(2020) Atioğlu, Zeliha; Akkurt, Mehmet; Shikhaliyev, Namiq Q.; Suleymanova, Gulnar T.; Babayeva, Gulnare V.; Gurbanova, Nurana V.; Mammadova, Gunay Z.; Mlowe, SixberthThe stabilized conformation of the title compound, C13H9Cl2N3O2, is similar to that of the isomeric compound (E)-1-(2,6-dichlorophenyl)-2-(2-nitrobenzylidene) hydrazine. The 2,6-dichlorophenyl ring and the nitro-substituted benzene ring form a dihedral angle of 26.25 (16) . In the crystal, face-to-face - stacking interactions along the a-axis direction occur between the centroids of the 2,6- dichlorophenyl ring and the nitro-substituted benzene ring. The molecules are further linked by C—H O contacts and N—H O and C—H Cl hydrogen bonds, forming pairs of hydrogen-bonded molecular layers parallel to (100). The Hirshfeld surface analysis of the crystal structure indicates that the most important contributions to the crystal packing are from H H (22.1%), Cl H/ H Cl (20.5%), O H/H O (19.7%), C C (11.1%) and C H/H C (8.3%) interactions.