title: Crystal structure of 3-(4-chloro-phen-oxy)-4-(2-nitro-phen-yl)azetidin-2-one with an unknown solvate.
abstract: In the title compound, C15H11ClN2O4, the central β-lactam ring is approximately planar [maximum deviation = 0.044 (2) Å for the N atom from the mean plane] and subtends dihedral angles of 61.17 (11) and 40.21 (12) °, respectively, with the nitro and chloro-benzene rings. Both substituents lie to the same side of the β-lactam core. In the crystal, N-H⋯O hydrogen bonds link the mol-ecules into C(4) chains propagating in [010]. The chains are cross-linked by C-H⋯O and weak C-H⋯π inter-actions, generating a three-dimensional network. The solvent mol-ecules were found to be highly disordered and their contribution to the scattering was removed with the SQUEEZE procedure in PLATON [Spek (2009 ▶). Acta Cryst. D65, 148-155], which indicated a solvent cavity of volume 318 Å(3) containing approximately 114 electrons. These solvent mol-ecules are not considered in the given chemical formula and other crystal data.
authors.affiliation: Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey.
authors.forename: Sevim Türktekin
authors.initials: ST
authors.lastname: Çelikesir
authors.affiliation: Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Akkurt
authors.affiliation: Department of Chemistry, College of Sciences, Shiraz University, 71454 Shiraz, Iran.
authors.forename: Aliasghar
authors.initials: A
authors.lastname: Jarrahpour
authors.affiliation: Department of Chemistry, College of Sciences, Shiraz University, 71454 Shiraz, Iran.
authors.forename: Habib Allah
authors.initials: HA
authors.lastname: Shafie
authors.affiliation: Department of Physics, Faculty of Education, Dicle University, 21280, Diyarbakir, Turkey, and, Science and Technology Application and Research Center, Dicle University, 21280, Diyarbakir, Turkey.
authors.forename: Ömer
authors.initials: Ö
authors.lastname: Çelik
keywords: C(4) chain; C—H⋯π inter­actions; N-unsubstituted 2-azetidinone; crystal structure; hydrogen bonding; hydrogen bonds; β-lactam ring