Yazar "Askerova, Ulviyya F." seçeneğine göre listele

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  • Küçük Resim
    Öğe
    Crystal structure and Hirshfeld surface analysis of (2Z)-N, N-dimethyl-2-(pentafluorophenyl)-2-(2-phenylhydrazin-1-ylidene) acetamide
    (2021) Atioğlu, Zeliha; Akkurt, Mehmet; Shikhaliyev, Namiq Q.; Askerova, Ulviyya F.; Niyazova, AA; Mlowe, Sixberth
    In the title compound, C16H12F5N3O, the dihedral angle between the aromatic rings is 31.84?(8)°. In the crystal, the molecules are linked into dimers possessing crystallographic twofold symmetry by pairwise N—H?O hydrogen bonds and weak C—H?O hydrogen bonds and aromatic ?–? stacking interactions link the dimers into a three-dimensional network. A Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from F?H/H?F (41.1%), H?H (21.8%), C?H/H?C (9.7%) C?C (7.1%) and O?H/H?O (7.1%) contacts. The contribution of some disordered solvent to the scattering was removed using the SQUEEZE routine [Spek (2015). Acta Cryst. C71, 9–18] in PLATON. The solvent contribution was not included in the reported molecular weight and density.
  • Küçük Resim
    Öğe
    Crystal structure and Hirshfeld surface analysis of (3Z)-7-meth­­oxy-3-(2-phenyl­hydrazinyl­­idene)-1-benzo­furan-2(3H)-one
    (2021) Atioğlu, Zeliha; Akkurt, Mehmet; Askerova, Ulviyya F.; Mukhtarova, Sevinc H.; Askerov, Rizvan K.; Mlowe, Sixberth
    In the title compound, C15H12N2O3, pairs of mol­ecules are linked into dimers by N—H?O hydrogen bonds, forming an R22(12) ring motif, with the dimers stacked along the a axis. These dimers are connected through ?–? stacking inter­actions between the centroids of the benzene and furan rings of their 2,3-di­hydro-1-benzo­furan ring systems. Furthermore, there exists a C—H?? inter­action that consolidates the crystal packing. A Hirshfeld surface analysis indicates that the most important contacts are H?H (40.7%), O?H/H?O (24.7%), C?H/H?C (16.1%) and C?C (8.8%).
  • Küçük Resim
    Öğe
    Crystal structure and Hirshfeld surface analysis of 3-[2-(3,5-dimethylphenyl)hydrazinylidene]benzofuran- 2(3H)-one
    (2021) Atioğlu, Zeliha; Akkurt, Mehmet; Shikhaliyev, Namiq Q.; Askerova, Ulviyya F.; Mukhtarova, Sevinc H.; Askerov, Rizvan K.; Bhattarai, Ajaya
    In the title compound, C16H14N2O2, the 2,3-dihydro-1-benzofuran ring system is essentially planar and makes a dihedral angle of 3.69 (7) with the dimethylphenyl ring. The molecular conformation is stabilized by an intramolecular N— H O hydrogen bond with an S(6) ring motif. In the crystal, molecules are connected by C—H and – stacking interactions, forming a layer lying parallel to the (111) plane. One methyl group is disordered over two orientations, with occupancies of 0.67 (4) and 0.33 (4). Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from H H (51.2%), O H/H O (17.9%), C H/H C (15.2%) and C C (8.1%) contacts.