2-Fluoro-4-(methoxycarbonyl)benzoic acid
نویسندگان
چکیده
In the crystal of the title compound, C(9)H(7)FO(4), classical carboxylate inversion dimers are linked by pairs of O-H⋯O hydrogen bonds. The packing is consolidated by C-H⋯F and C-H⋯O interactions. The benzene ring and the methoxycarbonyl group are nearly coplanar, with a dihedral angle of 1.5 (3)° between them, whereas the carboxyl group has a dihedral angle of 20.2 (4)° with respect to the benzene ring.
منابع مشابه
Gas phase measurements of mono-fluoro-benzoic acids and the dimer of 3-fluoro-benzoic acid.
The microwave spectrum of the mono-fluoro-benzoic acids, 2-fluoro-, 3-fluoro-, and 4-fluoro-benzoic acid have been measured in the frequency range of 4-14 GHz using a pulsed beam Fourier transform microwave spectrometer. Measured rotational transition lines were assigned and fit using a rigid rotor Hamiltonian. Assignments were made for 3 conformers of 2-fluorobenzoic acid, 2 conformers of 3-fl...
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The asymmetric unit of the title compound, 2C(7)H(2)F(4)O(2)·C(10)H(8)N(2), contains one mol-ecule of 2,3,4,5-tetra-fluoro-benzoic acid (tfb) and half of a centrosymmetric 4,4'-bipyridine mol-ecule. Inter-molecular O-H⋯N hydrogen bonds link two tfb mol-ecules and one 4,4'-bipyridine mol-ecule into a trimer. Weak inter-molecular C-H⋯F inter-actions assemble these trimers into a three-dimensional...
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