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.

Keywords: crystal structure, pKa values, hydrogen bond

---

The full text of this paper in pdf-Format:

If you came directly to this page, click this symbol to go to the homepage of CRT.