Date Published: June 01, 2011
Publisher: International Union of Crystallography
Author(s): Carlos Bustos, Luis Alvarez-Thon, Juan-Guillermo Cárcamo, Andrés Ibañez, Christian Sánchez.
The molecular structure of the title compound, C21H15ClN2O2, features one strong intramolecular N—H⋯O resonance-assisted hydrogen bond (RAHB). In the crystal, molecules form inversion-related dimers via pairs of weak intermolecular N—H⋯O contacts. These dimers are further stabilized via three weak C—H⋯O contacts, developing the three-dimensional structure.
For resonance-assisted hydrogen bonds, see: Bertolasi et al. (1993 ▶, 1994a ▶,b ▶); Inabe (1991 ▶); Krygowski et al. (1997 ▶); Olivieri et al. (1989 ▶). For details of the synthesis, see: Bustos et al. (2007 ▶, 2009 ▶); Yao (1964 ▶).