Ethylenediaminium pyridine-2,5-dicarboxylate dihydrate

Graham Smith, Urs D. Wermuth, David J. Young, Peter C. Healy

Research output: Contribution to journalArticlepeer-review


The title compound, C2H10N22+·C7H3NO42-·2H2O, forms a three-dimensional hydrogen-bonded framework structure in which both of the amine groups of ethylenediamine are protonated and participate in a total of six hydrogen-bonding interactions with carboxylate O-atom acceptors of the anions as well as the water molecules. The cations lie on crystal-lographic inversion centres and adopt extended conformations, while the anions have twofold rotational symmetry. This results in the pyridine N atom and its ortho-related CH group being disordered over two 50% occupancy sites.

Original languageEnglish
Pages (from-to)o3124-o3126
Number of pages3
JournalActa Crystallographica Section E: Structure Reports Online
Issue numberPart 7
Publication statusPublished - 1 Jul 2006
Externally publishedYes


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