Racemic 6-exo-hydroxy­bi­cyclo­[2.2.1]­heptane-2-exo-carboxyl­ic acid

The crystal structure of the title cage hydroxy acid, C₈H₁₂O₃, has confirmed the exo configuration for both the carboxyl­ic acid and hydroxy substituents, as previously determined from chemical and ¹³C NMR evidence. Both the carboxyl­ic acid and the hydroxy O atoms are involved in intermolecular hydrogen-bonding interactions, giving a centrosymmetric 12-membered cyclic ring system which extends via hydrogen bonding into an infinite two-dimensional network.