Crystal structure and Hirshfeld analysis of 2-[bis(1-methyl-1H-indol-3-yl)methyl]benzoic acid

Abstract

In the title compound, the dihedral angles between the 1-methyl indole units (A and B) and the benzoic acid moiety (C) are A/B = 64.87 (7), A/C = 80.92 (8) and B/C = 75.05 (8)°. An intra­molecular C—H⋯O inter­action arising from the methyne group helps to establish the conformation. In the crystal, (8) carb­oxy­lic acid inversion dimers linked by pairs of O—H⋯O hydrogen bonds are observed.