(4E)-1-Phenyl-4-{[(pyridin-2-yl)amino]methylidene}pyrazolidine-3,5-dione

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Ahmed Khodairy¹  Shaaban K. Mohamed²  Joel T. Mague³  Mehmet Akkurt⁴  Mustafa R. Albayati⁵  Eman A. Ahmed⁵ 

[1] Chemistry Department, Faculty of Science, Sohagt University, Sohag, Egypt;

[2] Chemistry and Environmental Division, Manchester Metropolitan University, Manchester, M1 5GD, England, and, Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt;

[3] Department of Chemistry, Tulane University, New Orleans, LA 70118, USA;

[4] Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey;

[5] Kirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq;

关键词: crystal structure;    pyrazoldiones;    1,2,4-triazoles;    benzyidene-acetohydrazide;   

DOI  :  10.1107/S2414314616009093

来源: DOAJ

【 摘 要 】

The title compound, C15H12N4O2, contains two independent molecules in the asymmetric unit. These differ in terms of dihedral angles that the phenyl and 2-pyridyl rings subtend with the central five-membered ring; 15.2 (2) and 2.9 (2)°, respectively, in one molecule, 8.9 (2) and 5.1 (2)°for the second. In the crystal, the independent molecules each self-associate to form layers through N—H...O and C—H...O hydrogen bonding. The layers associate through π–π interactions between the phenyl rings and isolated carbon–carbon double bonds [shortest midpoint–centroid distance = 3.347 (4) Å]. The crystal studied was refined as a two-component twin.

【 授权许可】

Unknown