(E)-2-(2-Fluoro-benzyl-idene)butanoic acid

Abstract

In the crystal structure of the title compound, C11H11FO2, the methine CH forms an intra-molecular hydrogen bond with the carboxyl- O atom. The mol-ecules form dimers through hydrogen bonding between carboxyl- groups. These dimers are linked to each other by C - H⋯O contacts between the benzene and carbonyl groups of adjoining mol-ecules. In addition, there are weak inter-molecular C - H⋯F contacts.