2-Bromo-3-hydroxy-6-methylpyridine (original) (raw)
2013, Acta Crystallographica Section E Structure Reports Online
In the title compound, C6H6BrNO, the Br atom is displaced from the pyridine ring mean plane by 0.0948 (3) Å, while the hydroxyl O atom and the methyl C atom are displaced by 0.0173 (19) and 0.015 (3) Å, respectively. In the crystal, molecules are linkedviaO—H...N hydrogen bonds, forming chains propagating along thea-axis direction. These chains are linked by C—H...Br hydrogen bonds, forming corrugated two-dimensional networks lying parallel to theacplane.
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IUCrData, 2016
The title compound, C6H6BrN, has half of a molecule in the asymmetric unit, as it sits on a crystallographic plane of symmetry. In the crystal, weak C—H...N interactions link the molecules, forming chains along [100]. No π–π interactions are observed.
6-Bromopyridine-2-carbaldehyde phenylhydrazone
Acta Crystallographica Section E Structure Reports Online, 2012
Key indicators: single-crystal X-ray study; T = 295 K; mean (C-C) = 0.004 Å; R factor = 0.039; wR factor = 0.110; data-to-parameter ratio = 16.1.
In the crystal structure of the title compound, C5H5BrN2, molecules assemble via pairs of N—H...N hydrogen bonds into inversion dimers using only the syn H atom on the amine group. These dimers then assemble further into two-dimensional layers via type I C—Br...Br [Br...Br = 3.693 (6) A ˚ ] halogen bonding along the (102) plane.
2-Bromopyridine-3-carboxylic acid
Acta Crystallographica Section E Structure Reports Online, 2010
The carboxylic acid residue in the title compound, C 6 H 4 BrNO 2 , is twisted out of the plane of the other atoms, as indicated by the (Br)C-CC -O carbonyl torsion angle of À20.1 (9). In the crystal, supramolecular chains mediated by O-HÁ Á ÁN hydrogen bonds are formed with base vector [201] and C-HÁ Á ÁO interactions reinforce the packing.
(2E)-3-(3-Bromo-4-methoxyphenyl)-1-(pyridin-2-yl) prop-2-en-1-one
… Section E: Structure …, 2011
The mean planes of the benzene and pyridine rings in the title compound, C15H12BrNO2, are nearly coplanar, subtending an angle of 2.8 (8)°. The prop-2-en-1-one group is also in the plane of these rings with an N—C—C—O torsion angle of 179.6 (3)°. A weak C—HBr intermolecular interaction contributes to the crystal packing, creating a chain-like structure along the a axis.
6,6′-Bis(chloromethyl)-2,2′-bipyridine
Acta Crystallographica Section E Structure Reports Online, 2004
Single-crystal X-ray study T = 150 K Mean '(C±C) = 0.002 A Ê R factor = 0.025 wR factor = 0.069 Data-to-parameter ratio = 18.3
6-Bromo-2-(4-methoxyphenyl)-3-methyl-3H-imidazo[4,5-b]pyridine
IUCrData
In the title compound, C14H12BrN3O, the dihedral angle between the mean planes of the imidazo[4,5-b]pyridine ring system and the methoxyphenyl ring is 41.53 (12)°. In the crystal, weak C—H...N hydrogen bonds link the molecules into chains along the c-axis direction. Weak π–π stacking interactions involving the imidazole and the methoxyphenyl rings further stabilize the crystal packing.
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Acta Crystallographica Section E Structure Reports Online, 2013