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organic compounds
In 2-phenylquinoline-4-carboxylic acid, C16H11NO2, hydrogen bonding occurs only between a carboxyl O atom donor and the ring N atom, which acts as an acceptor. The carboxyl H atom is ordered in this structure. The dihedral angle between the carboxyl group plane and the best-fit mean quinoline plane is 53.6 (1)°. All bond distances and angles within the quinoline core, the carboxyl group and the phenyl group fall within the normal ranges. The structure is described in space group P212121.
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