2-(Trifluoromethyl)benzoic acid
نویسندگان
چکیده
In the title compound, C(8)H(5)F(3)O(2), a halogenated derivative of benzoic acid, the carboxyl group is tilted by 16.8 (3)° with respect to the plane of the aromatic ring. In the crystal, O-H⋯O hydrogen bonding gives rise to carb-oxy-lic acid dimers, which are further connected into double chains along [1,1/4,1] by C-H⋯O contacts. C-H⋯F and C-F⋯π contacts are also observed.
منابع مشابه
A new polymorph of 2,6-bis(trifluoromethyl)benzoic acid
The asymmetric unit of a second polymorph of the title compound, C(9)H(4)F(6)O(2), contains five independent mol-ecules, which form hydrogen-bonded O-H⋯O dimers about inversion centers. The most significant structural difference between this structure and that of the first polymorph [Tobin & Masuda (2009 ▶). Acta Cryst. E65, o1217] is the hydrogen-bonded, dimeric orientation of the carb-oxy-lic...
متن کامل3-[2-Chloro-4-(trifluoromethyl)phenoxy]benzoic acid
The asymmetric unit of the title compound, C(14)H(8)ClF(3)O(3), comprises two independent mol-ecules. The rings in each molecule are connected together via O-H⋯O hydrogen bonds to form classical hydrogen-bonded carb-oxy-lic acid dimers. The dihedral angles between the benzene rings are 80.7 (1) and 68.7 (1)°.
متن کامل2,6-Bis(trifluoromethyl)benzoic acid
The title compound, C(9)H(4)F(6)O(2), contains two mol-ecules in the asymmetric unit, one of which exhibits disorder in both of its trifluoro-methyl groups. The dihedral angles between the benzene ring and the carboxyl group are 71.5 (2) and 99.3 (2)° in the two independent mol-ecules. The compound exhibits a catemeric structure resulting from inter-molecular O-H⋯O hydrogen bonding between the ...
متن کامل2-Methylsulfonyl-4-(trifluoromethyl)benzoic acid
In the title mol-ecule, C(9)H(7)F(3)O(4)S, the S and the methyl C atoms of the methyl-sulfonyl group deviate from the benzene ring plane by 0.185 (2) and -1.394 (3) Å, respectively. In the crystal, O-H⋯O hydrogen bonds link the mol-ecules into chains along [201]. Weak C-H⋯O inter-actions further link these chains into layers parallel to the ac plane.
متن کاملKinetic Studies of the Catalytic Oxidation of Toluene to Benzoic Acid in the Liquid Phase
The catalytic oxidation of toluene to benzoic acid in the liquid phase has been studied in an un-stirred tank reactor. Low concentration of acetic acid was added in order to increase the solubility of the catalyst in toluene. The dependence of the rate of reaction on the concentration of toluene catalyst and oxygen pressure was studied. It has been suggested that liquid phase oxidation of t...
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عنوان ژورنال:
دوره 67 شماره
صفحات -
تاریخ انتشار 2011