2-Chloro-3-[(2-oxo-2H-chromen-6-yl)amino]-naphthalene-1,4-dione

Acta Crystallogr Sect E Struct Rep Online. 2013 Jul 27;69(Pt 8):o1317. doi: 10.1107/S1600536813019922. eCollection 2013.

Abstract

In the title compound, C19H10ClNO4, the dihedral angle between the naphtho-quinone and coumarin rings is 48.99 (6)°. In the crystal, mol-ecules are linked by strong N-H⋯O hydrogen bonds into chains with graph-set motif C(6) along [101]. The packing also features π-π stacking inter-actions between naphtho-quinone and coumarin rings [centroid-to-centroid distances = 3.7679 (12) and 3.6180 (13) Å].