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  • Küçük Resim
    Öğe
    Crystal structure and Hirshfeld surface analysis of 4-azido-2-(3,5-di­methyl­phen­yl)-5-(4-nitro­phen­yl)-2H-1,2,3-triazole
    (2023) Maharramov, Abel; Shikhaliyev, Namiq Q; Abdullayeva, Afaq; Atakishiyeva,Gulnar T; Niyazova, Ayten; Khrustalev, Victor N; Gahramanova, Shahnaz I; Atioğlu, Zeliha; Akkurt, Mehmet; Bhattarai, Ajaya
    In the title compound, C16H13N7O2, the 3,5-dimethylphenyl and 4-nitrophenyl rings are inclined to the central 2H-1,2,3-triazole ring by 1.80 (7) and 1.79 (7)?, respectively, and to one another by 2.16 (7)?. In the crystal, the molecules are linked by C—H? ? ?N hydrogen bonds and ?–? stacking interactions [centroid-tocentroid distances = 3.7295 (9) and 3.7971 (9) A? ], forming ribbons along the baxis direction. These ribbons are connected to each other by weak van der Waals interactions and the stability of the crystal structure is ensured.
  • Küçük Resim
    Öğe
    Crystal structures and Hirshfeld surface analyses of methyl 4-{2,2-di­chloro-1-[(E)-phenyl­diazen­yl]eth­enyl}benzoate, methyl 4-{2,2-di­chloro-1-[(E)-(4-methyl­phen­yl)diazen­yl]ethen­yl}benzoate and methyl 4-{2,2-di­chloro-1-[(E)-(3,4-di­methyl­phen­yl)diazen­yl]ethen­yl}benzoate
    (2024) Shikhaliyev, Namiq Q; İbrahimova, Shafiga A; Atakishiyeva, Gulnar T; Ahmedova, Nigar E; Babayeva, Gulnara V; Khrustalev, Victor N; Atioğlu, Zeliha; Akkurt, Mehmet; Bhattarai, Ajaya
    The crystal structures and Hirshfeld surface analyses of three similar azo compounds are reported. Methyl 4-{2,2-dichloro-1-[(E)-phenyldiazenyl]ethenyl}benzoate, C16H12Cl2N2O2, (I), and methyl 4-{2,2-dichloro-1-[(E)-(4-methylphenyl)diazenyl]ethenyl}benzoate, C17H14Cl2N2O2, (II), crystallize in the space group P21/c with Z = 4, and methyl 4-{2,2-dichloro-1-[(E)-(3,4-dimethylphenyl)diazenyl]ethenyl}benzoate, C18H16Cl2N2O2, (III), in the space group P\overline{1} with Z = 2. In the crystal of (I), molecules are linked by C—H?N hydrogen bonds, forming chains with C(6) motifs parallel to the b axis. Short intermolecular Cl?O contacts of 2.8421?(16)?Å and weak van der Waals interactions between these chains stabilize the crystal structure. In (II), molecules are linked by C—H?O hydrogen bonds and C—Cl?? interactions, forming layers parallel to (010). Weak van der Waals interactions between these layers …