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Three-centre hydrogen bonds in 4-picoline N-oxide-hydroquinone (1/1)

Moreno-Fuquen, Rodolfo and Valderrama-N, Jaime and Kennedy, Alan R. (2007) Three-centre hydrogen bonds in 4-picoline N-oxide-hydroquinone (1/1). Acta Crystallographica Section E: Structure Reports, 63. O1534-O1536. ISSN 1600-5368

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Abstract

The title compound, C6H7NO.C6H6O2, belongs to a series of molecular systems based on methylpyridine N-oxides. The N-oxide molecule is located on a crystallographic twofold rotation axis, while the hydroquinone molecule is located on an inversion centre. The two components are linked by an O-H...O hydrogen bond with a distance of 2.675 (2) angstrom. In the crystalline environment, three-centre hydrogen bonds involving the N-oxide O atom with two hydroquinone molecules related by symmetry in the [001] direction are observed.