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International Union of Crystallography, Acta Crystallographica Section E: Crystallographic Communications, 10(71), p. o750-o751, 2015

DOI: 10.1107/s2056989015016515

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Crystal structure of 3-ethynylbenzoic acid

Journal article published in 2015 by Chiara Venturini, Nicolas Ratel-Ramond, Andre Gourdon ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

In the title compound, C9H6O2, the carboxylic acid group is almost in the plane of the benzene ring, making a dihedral angle of 2.49 (18)°. In the crystal, molecules are linked by pairs of O—H...O hydrogen bonds, forming classical acid–acid inversion dimers, with anR22(8) ring motif. The dimers are linked by pairs of C—H...O hydrogen bonds forming chains, enclosingR22(16) ring motifs, propagating along thec-axis direction.