Waka Nakanishi, S. Hitosugi, A. Piskareva
Sep 8, 2010
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
The molecule of the title compound, C14H8I2, an intermediate in the synthesis of organic materials, is nearly planar, the maximum deviation from the mean plane being 0.032 (1) Å for the C atoms and 0.082 (2) Å for the I atoms. In the crystal structure, a sandwich–herringbone arrangement of molecules is observed, whereas a columnar π-stacking arrangement has been reported for the chlorinated congener 1,8-dichloroanthracene. Similar effects of halogen substituents on the modulation of packing arrangements are reported for halogenated aromatic compounds such as tetracenes and chrycenes.