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3,5-Dibromo-2-hydroxy-benzoic acid.

ABSTRACT: The title compound, C(7)H(4)Br(2)O(3), has an intra-molecular O-H?O=C hydrogen bond and aggregates to form hydrogen-bonded dimers via O-H?O inter-actions. The formation of zigzag one-dimensional mol-ecular tapes via C-H?Br inter-actions and ?-? stacking inter-actions (inter-planar separation = 3.42?Å) completes the crystal structure.

SUBMITTER: Liu CB

PROVIDER: S-EPMC2914893 | biostudies-other | 2007

REPOSITORIES: biostudies-other

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3,5-Dibromo-2-hydroxy-benzoic acid.

Liu Chong-Bo CB Chen Dan-Dan DD Wen Hui-Liang HL

Acta crystallographica. Section E, Structure reports online 20071206 Pt 1

The title compound, C(7)H(4)Br(2)O(3), has an intra-molecular O-H⋯O=C hydrogen bond and aggregates to form hydrogen-bonded dimers via O-H⋯O inter-actions. The formation of zigzag one-dimensional mol-ecular tapes via C-H⋯Br inter-actions and π-π stacking inter-actions (inter-planar separation = 3.42 Å) completes the crystal structure. ...[more]

PMID: 21200863

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Project description:The title compound, C(14)H(9)Br(3)N(2)O(2)·CH(4)O, was prepared by the reaction of 3,5-dibromo-2-hydroxy-benzaldehyde and 3-bromo-benzohydrazide in methanol. The asymmetric unit of the crystal consists of a Schiff base mol-ecule and a methanol mol-ecule of crystallization. The dihedral angle between the two benzene rings is 5.5 (2)°. An intra-molecular O-H⋯N hydrogen bond is observed. In the crystal structure, pairs of adjacent Schiff base mol-ecules are linked by two methanol mol-ecules through inter-molecular N-H⋯O and O-H⋯O hydrogen bonds.

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