5,7-Dichloro-1H-indole-2,3-dione
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The title compound, C8H3Cl2NO2, has a single molecule in the asymmetric unit that is close to planar, with the non-H atoms having a mean deviation from planarity of 0.035 Å. The molecules dimerize through two N—H...O hydrogen bonds. A weak intermolecular offset π–π interaction is also observed between the five- and six-membered rings, with a centroid–centroid separation of 3.8444 (16) Å.
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2015 ◽
Vol 71
(6)
◽
pp. o406-o406
◽
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