Abstract
The structures of two solid inclusion compounds with the 2',6'-dimethoxyflavone host molecule, 1, were investigated by single-crystal X-ray analysis. Both compounds, 1�3-bromo-2,6-dimethoxybenzoic acid (1:1) and 1�3-chloro-2,6-dimethoxybenzoic acid (1:1) crystallize in the centrosymmetric group P-1. The complexation involves an intermolecular hydrogen bond between the carbonyl group of the flavone and the acidic hydrogen of the acid.
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