Crystal structure of an acetonitrile solvate of 2-(3,4,5-triphenylphenyl)acetic acid

Crystal growth of 2-(3,4,5-triphenylphenyl)acetic acid (1) from acetonitrile yields a monosolvate, CHO·CHCN, of the space group P1. In the crystal, the title molecule adopts a conformation in which the three phenyl rings are arranged in a paddlewheel-like fashion around the central arene ring and the carboxyl residue is oriented nearly perpendicular to the plane of this benzene ring. Inversion-symmetric dimers of O - H⋯O-bonded molecules of 1 represent the basic supramolecular entities of the crystal structure. These dimeric molecular units are further linked by C - H⋯O=C bonds to form one-dimensional supramolecular aggregates running along the crystallographic [111] direction. Weak C - H⋯N interactions occur between the molecules of 1 and acetonitrile.