Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 8 (August 2013)

organic compounds

Acta Cryst. (2013). E69, o1317    [ doi:10.1107/S1600536813019922 ]


M. O. B. Sousa, G. Q. Silveira and J. A. G. Gomez

Abstract: In the title compound, C19H10ClNO4, the dihedral angle between the naphtho­quinone and coumarin rings is 48.99 (6)°. In the crystal, mol­ecules are linked by strong N-H...O hydrogen bonds into chains with graph-set motif C(6) along [101]. The packing also features [pi]-[pi] stacking inter­actions between naphtho­quinone and coumarin rings [centroid-to-centroid distances = 3.7679 (12) and 3.6180 (13) Å].

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