Acta Cryst. (2004). E60, o2087-o2089  [ doi:10.1107/S1600536804026078 ]

7-Nitro-2,3-dihydro-1H-cyclopenta[b]chromen-1-one

F.-J. Huo, C.-X. Yin and P. Yang

Abstract: In the crystal structure of the title compound, C₁₂H₉NO₄, the disordered pyran ring adopts a half-chair conformation. Weak intermolecular C-HO hydrogen bonds link molecules into centrosymmetric dimers, which generate (6), (10) and (14) rings. In addition, - stacking interactions are present.

Online 22 October 2004

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