4-(Diphenyl-phosphan-yl)benzoic acid.

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作者:Zhao Pei-Hua, Sun Fu-Yu, Liu Jun-Jie
In the title compound, C(19)H(15)O(2)P, the dihedral angles between the benzoic acid ring and the phenyl rings are 75.64†(7) and 80.88†(7)°; the dihedral angle between the phenyl rings is 81.35†(7)°. In the crystal, inversion dimers linked by pairs of O-H⋯O hydrogen bonds generate R(2) (2)(8) loops between the head-to-head carb-oxy-lic acid groups.

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