5-Hydroxy-7-methoxy-2-methyl-4H-chromen-4-one from Dysoxylum macrocarpum (Meliaceae)
Ibrahim A. Najmuldeen, Abdul Hamid Abdul Hadi, Khalijah Awang and 2 more
Acta Crystallographica Section E · 2010
doi:10.1107/s1600536810025146 (opens in a new tab)
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Abstract
Both independent molecules in the asymmetric unit of the title compound, C11H10O4, are almost planar (r.m.s. deviations = 0.011 and 0.033 Å). In both molecules, the hydroxy group is intramolecularly hydrogen bonded to the ketonic O atom. The independent molecules are stacked alternately along the a axis, with the centroids of their chromene ring separated by distances of 4.490 (1) and 3.621 (1) Å.
Abstract licence: CC BY
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