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rac-3-exo-Ammonio-7-anti-carb­oxy­tricyclo­[,6]heptane-3-endo-carboxyl­ate monohydrate

By Graham Smith, Urs D. Wermuth and Ian D. Jenkins


The racemic title compound, C9H11NO4·H2O, a tricyclic rearranged amino­norbornane dicarb­oxy­lic acid, is a conformationally rigid analogue of glutamic acid and exists as an ammonium-carboxyl­ate zwitterion, with the bridghead carb­oxy­lic acid group anti-related. In the crystal, N—H⋯O and O—H⋯O hydrogen bonds involving the ammonium, carb­oxy­lic acid and water donor groups with both water and carboxyl O-atom acceptors give a three-dimensional framework structure

Topics: Organic Papers
Publisher: International Union of Crystallography
OAI identifier:
Provided by: PubMed Central

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