Hydrogen Bond Network in Ethylenediammonium Bis(hydrogenmaleate)

In the title compound, C₂H₁₀N₂²⁺.2C₄H₃O₄^-, ethylene diammonium cations are centred on inversion centres and the monhydrogenmaleate anions are in general positions. The components are assembled into double layers by hydrogen bonding. The unique NH₃⁺ group connects the planar rings of the intramolecularly hydrogen-bonded anions into chains and cross-links the chains into centrosymmetric 18-membered rings, with intramolecular O...O 2.452 (2) Å and O...N in the range 2.816 (2)-2.852 (2) Å.

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