4-Amino-3-bromobenzoic acid
نویسندگان
چکیده
The asymmetric unit of the title compound, C(7)H(6)BrNO(2), consists of two mol-ecules having a small variation of bond lengths and angles. The title compound forms dimers through pairs of O-H⋯O hydrogen bonds involving the carboxyl-ate groups. The dimers are linked into polymeric forms through inter-molecular hydrogen bonds, forming R(2) (1)(6), R(3) (2)(8) and R(3) (3)(15) ring motifs.
منابع مشابه
4-Bromobenzoic acid–6-(4-bromophenyl)-3-methyl-1,2,4-triazolo[3,4-b][1,3,4]thiadiazole (1/1)
In the title 1:1 co-crystal, C(10)H(7)BrN(4)S·C(7)H(5)BrO(2), the triazolothia-diazole system is approximately planar [with a maximum deviation of 0.030 (4) Å] and forms a dihedral angle of 8.6 (1)° with the bromo-phenyl ring. In the carb-oxy-lic acid mol-ecule, the carboxyl group is rotated by 6.4 (3)° out of the benzene ring plane. The crystal structure features O-H⋯N and C-H⋯O hydrogen bonds...
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The crystal structure of the title compound, C7H5BrO2, was originally studied using photographic data at room temperature with Cu Kα radiation [Ferguson & Sim (1962 ▶). Acta Cryst. 15, 346-350]. The present study was undertaken at 120 K with a CCD diffractometer using Cu Kα radiation, and resulted in improved geometrical parameters. In the mol-ecule, the carb-oxy group is inclined to the benzen...
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