Crystal structure of 3-(4-chlorophenoxy)-4-(2-nitrophenyl)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 chlorobenzene rings. Both substituents lie to the same side of the β-lactam core. In the crystal, N—H...O hydrogen bonds link the molecules intoC(4) chains propagating in [010]. The chains are cross-linked by C—H...O and weak C—H...π interactions, generating a three-dimensional network. The solvent molecules were found to be highly disordered and their contribution to the scattering was removed with the SQUEEZE procedure inPLATON[Spek (2009).Acta Cryst.D65, 148–155], which indicated a solvent cavity of volume 318 Å3containing approximately 114 electrons. These solvent molecules are not considered in the given chemical formula and other crystal data.