Abstract
The title compound, C10H4I2O3, is an iodinated 3-formylchromone derivative, and the atoms are essentially coplanar [r.m.s. deviation = 0.049 Å, largest deviation from the least-squares plane = 0.111 (9) Å for the CH(=O) C atom]. In the crystal, molecules are linked into a three-dimensional network through halogen bonds [I⋯O = 3.352 (5) and 3.405 (7) Å, C—I⋯O = 144.2 (3) and 154.5 (3)°, and C=O⋯I = 134.9 (6) and 146.0 (6)°], and π–π stacking interactions [centroid–centroid distance = 3.527 (6) Å].
Highlights
Rigaku AFC-7R diffractometer Absorption correction: scan (North et al, 1968) Tmin = 0.152, Tmax = 0.220 2933 measured reflections 2383 independent reflections
Supporting information for this paper is available from the IUCr electronic archives (Reference: ZL2583)
We have recently reported the crystal structures of halogenated 3formylchromone derivatives, 6,8-dichloro-4-oxochromene-3-carbaldehyde and 6,8-dibromo-4-oxochromene-3carbaldehyde (Ishikawa & Motohashi, 2013; Ishikawa, 2014)
Summary
The title compound, C10H4I2O3, is an iodinated 3-formylchromone derivative, and the atoms are essentially coplanar [r.m.s. deviation = 0.049 A , largest deviation from the leastsquares plane = 0.111 (9) Afor the CH( O) C atom]. Molecules are linked into a three-dimensional network through halogen bonds [IÁ Á ÁO = 3.352 (5) and 3.405 (7) A , C— IÁ Á ÁO = 144.2 (3) and 154.5 (3), and C OÁ Á ÁI = 134.9 (6) and 146.0 (6)], and – stacking interactions [centroid–centroid distance = 3.527 (6) A ]. Related literature For the preparation of the precursor of the title compound, see: Khansole et al (2008). See: Auffinger et al (2004); Metrangolo et al (2005); Wilcken et al (2013); Sirimulla et al (2013).
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