Date Published: June 01, 2012
Publisher: International Union of Crystallography
Author(s): Michaela Pojarová, Michal Dušek, Zdeňka Sedláková, Emanuel Makrlík.
In the crystal structure of the title compound, C19H18Cl2N2O4, N—H⋯O hydrogen bonds link the molecules into infinite chains along the b axis. The structure also features weak C—H⋯O and C—H⋯Cl hydrogen bonds and C—H⋯π and (lone pair)⋯π interactions [Cl⋯centroid = 3.5871 (7) Å]. An intramolecular N—H⋯O bond occurs.
For the synthesis, see: Ertul et al. (2009 ▶). For applications of macrocycles, see: Hayvali & Hayvali (2005 ▶); Kleinpeter et al. (1997 ▶); Jaiyu et al. (2007 ▶); Christensen et al. (1997 ▶); Alexander (1995 ▶).