Crystal structure of (Z)-ethyl 3-[2-(5-methyl-7-nitro-1H-indole-2-carbonyl)hydrazinylidene]butanoate

Acta Crystallographica Section E: Crystallographic Communications

Salaheddine Guesmi¹  Mohamed Saadi²  Lahcen El Ammari²  Abdellatif El Kihel³  Amal Errossafi³ 

[1] Laboratoire de Chimie de Coordination et d'Analytique (LCCA), Faculté des Sciences, Université Chouaib Doukkali, BP 20, M-24000 El Jadida, Morocco;Laboratoire de Chimie du Solide Appliquée, Faculté des Sciences, Université Mohammed V, Avenue Ibn Battouta, BP 1014, Rabat, Morocco;Laboratoire de chimie bioorganique, Faculté des Sciences, Université Chouaib Doukkali, BP 20, M-24000 El Jadida, Morocco;

关键词: crystal structure;    conformation;    hydrogen bonding;   

DOI  :  10.1107/S2056989015015054

来源: DOAJ

【 摘 要 】

The reaction of 5-methyl-7-nitro-1H-indole-2-carbohydrazide with ethyl acetoacetate yielded the title molecule, C16H18N4O5, in which the indole ring is almost planar, with the greatest deviation from the mean plane being 0.006 (2) Å. The nine atoms of the indole ring are almost perpendicular to the mean plane through the ethyl acetate group, as indicated by the dihedral angle of 87.02 (4)° between them. In the crystal, centrosymmetric supramolecular dimers are formed via N—H...O hydrogen bonds and eight-membered amide {...HNCO}2 synthons. These are consolidated into a three-dimensional architecture by C—H...O contacts, and by π–π interactions between six-membered rings [inter-centroid distance = 3.499 (2) Å].

【 授权许可】

Unknown