title: Crystal structure of (Z)-7,8-di-chloro-4-(2-oxo-propyl-idene)-4,5-di-hydro-1H-1,5-benzodiazepin-2(3H)-one.
abstract: In the title compound, C12H10Cl2N2O2, the seven-membered heterocycle displays a half-chair conformation. The mean plane through the oxo-propyl-idene group makes a dihedral angle of 36.44 (9)° with the fused benzene ring. An intra-molecular N-H⋯O hydrogen bond to close an S(6) loop is noted. An important feature of the mol-ecular packing are N-H⋯O hydrogen bonds that lead to the formation of helical supra-molecular chains along the b axis.
authors: Laboratoire de Chimie Organique Hétérocyclique URAC 21, Pôle de Compétence Pharmacochimie, Av. Ibn Battouta, BP 1014, Faculté des Sciences, Université Mohammed V, Rabat, Morocco.
authors: Sanae
authors: S
authors: Lahmidi
authors: Laboratoire de Chimie Organique Hétérocyclique URAC 21, Pôle de Compétence Pharmacochimie, Av. Ibn Battouta, BP 1014, Faculté des Sciences, Université Mohammed V, Rabat, Morocco.
authors: Abdelhanine
authors: A
authors: Essaghouani
authors: Laboratoire de Chimie Organique Hétérocyclique URAC 21, Pôle de Compétence Pharmacochimie, Av. Ibn Battouta, BP 1014, Faculté des Sciences, Université Mohammed V, Rabat, Morocco.
authors: El Mokhtar
authors: el M
authors: Essassi
authors: Laboratoire de Chimie du Solide Appliquée, Faculté des Sciences, Université Mohammed V de Rabat, Avenue Ibn Battouta, BP 1014, Rabat, Morocco.
authors: Mohamed
authors: M
authors: Saadi
authors: Laboratoire de Chimie du Solide Appliquée, Faculté des Sciences, Université Mohammed V de Rabat, Avenue Ibn Battouta, BP 1014, Rabat, Morocco.
authors: Lahcen
authors: L
authors: El Ammari
keywords: 1,5-benzodiazepinone; 2-oxo­propyl­idene; crystal structure; hydrogen bonding