title: 2-(4-Isopropyl-benzylidene)propanoic acid.
abstract: The two mol-ecules in the asymmetric unit of the title compound, C(13)H(16)O(2), form dimers through O-H⋯O hydrogen bonding, resulting in R(2) (2)(8) rings. Each carboxyl- O atom is involved in inter-amolecular C-H⋯O hydrogen bonds, forming five-membered rings. There exist dissimilar dihedral angles within the two mol-ecules, for example the carboxylate and isopropyl groups make dihedral angles of 59.6 (4) and 71.7 (3)° in the two molecules. There are no intermolecular π inter-actions.
authors.forename: Niaz
authors.initials: N
authors.lastname: Muhammad
authors.forename: M Nawaz
authors.initials: MN
authors.lastname: Tahir
authors.forename: Saqib
authors.initials: S
authors.lastname: Ali
authors.lastname: Zia-Ur-Rehman
authors.forename: Muhammad Akram
authors.initials: MA
authors.lastname: Kashmiri