N-(3,4-Dimethylphenyl)maleamic acid
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چکیده
The title compound, C(12)H(13)NO(3), crystallizes with four independent mol-ecules in the asymmetric unit. The N-H bond and the C=O bond in the amide segment are anti to each other. The C=C double bond is cis configured and an intra-molecular O-H⋯O hydrogen bond is formed in each molecule. The mean planes through the aromatic ring and the amide group -NHCO- are inclined at angles of 17.4 (3), 20.8 (2), 16.2 (2) and 11.2 (3)° in the four mol-ecules. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into ribbons along the b axis.
منابع مشابه
N-(2,6-Dimethylphenyl)maleamic acid
The asymmetric unit of the title compound, C(12)H(13)NO(3), contains two independent mol-ecules. The conformation of the N-H bond and the C=O bond in the amide segment are anti to each other. The mol-ecular conformation of each mol-ecule is stabilized by an intra-molecular O-H⋯O hydrogen bond. In the crystal, mol-ecules are connected through intermolecular N-H⋯O hydrogen bonds. In addition, the...
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