Crystal structure and Hirshfeld surface analysis of 5-[(5-nitro-1H-indazol-1-yl)meth-yl]-3-phenyl-4,5-di-hydro-isoxazole. 2019

Mohammed Boulhaoua, and Sevgi Kansiz, and Mohamed El Hafi, and Sanae Lahmidi, and Necmi Dege, and Mohammed Benchidmi, and Joel T Mague
Laboratoire de Chimie Organique Hétérocyclique, Centre de Recherche Des Sciences des Médicaments, Pôle de Compétence Pharmacochimie, Av Ibn Battouta, BP 1014, Faculté des Sciences, Université Mohammed V, Rabat, Morocco.

In the title compound, C17H14N4O3, the indazole unit is planar to within 0.0171 (10) Å and makes dihedral angles of 6.50 (6) and 6.79 (4)°, respectively, with the nitro and pendant phenyl groups. The conformation of the oxazole ring is best described as an envelope. In the crystal, oblique stacks along the a-axis direction are formed by π-π stacking inter-actions between the indazole unit and the pendant phenyl rings of adjacent mol-ecules. The stacks are linked into pairs through C-H⋯O hydrogen bonds. Hirshfeld surface analysis and two-dimensional fingerprint plots indicate that the most important contributions to the crystal packing are from H⋯H (36.3%), O⋯H/H⋯O (23.4%), C⋯H/H⋯C (13.4%) and N⋯H/H⋯N (11.4%) inter-actions.

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