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Crystal structure of 7-bromo-4-oxo-4H-chromene-3-carbaldehyde.

Authors
  • Ishikawa, Yoshinobu
Type
Published Article
Journal
Acta Crystallographica Section E Structure Reports Online
Publisher
International Union of Crystallography
Publication Date
Sep 01, 2014
Volume
70
Issue
Pt 9
Identifiers
DOI: 10.1107/S1600536814018108
PMID: 25309300
Source
Medline
Keywords
License
Unknown

Abstract

In the title compound, C10H5BrO3, a brominated 3-formyl-chromone derivative, all atoms are essentially coplanar (r.m.s. = 0.0631 Å for the non-H atoms), with the largest deviation from the least-squares plane [0.215 (3) Å] being for the formyl O atom. In the crystal, mol-ecules are linked into tapes through C-H⋯O hydrogen bonds and these tapes are assembled by stacking inter-actions [centroid-centroid distance between the pyran rings = 3.858 (3) Å] to form supra-molecular layers that stack along the c axis.

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