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7-Chloro-4-oxo-4H-chromene-3-carbaldehyde (2014)

Ishikawa, Y.

International Union of Crystallography (IUC)

In: Acta Crystallographica Section E

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Publication Date: 2014-07-03

Description: In the title compound, C10H5ClO3, a chlorinated 3-formylchromone derivative, all atoms are essentially coplanar (r.m.s. deviation = 0.0592 Å for all non-H atoms), with the largest deviation from the least-squares plane [0.1792 (19) Å] being for the chromone-ring carbonyl O atom. In the crystal, molecules are linked through C—H...O hydrogen bonds to form tetrads, which are assembled by stacking interactions [centroid–centroid distance between the pyran rings = 3.823 (3) Å] and van der Waals contacts between the Cl atoms [Cl...Cl = 3.4483 (16) Å and C—Cl...Cl = 171.73 (7)°] into a three-dimensional architecture.

Keywords: crystal structure

Electronic ISSN: 1600-5368

Topics: Chemistry and Pharmacology , Geosciences

Published by International Union of Crystallography (IUC)

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