Hydrogen Bond Network in Ethylenediammonium Bis(hydrogenmaleate)

Abstract

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.