Abstract
The reaction between ethylamine and oxalic acid in water in a 1:1 molar ratio afforded the title salt, C2H8N+·C2HO4 −·0.5C2H2O4. The hydrogen oxalate anions interact through hydrogen bonding and are organized into a chains propagating along the c-axis direction. The chains are connected to the neighbouring cations and oxalic acid molecules by N—H...O and O—H...O hydrogen bonds and N...O dipole–dipole contacts, leading to a supramolecular three-dimensional network.
Highlights
The reaction between ethylamine and oxalic acid in water in a 1:1 molar ratio afforded the title salt, C2H8N+ÁC2HO4ÀÁ0.5C2H2O4
The hydrogen oxalate anions interact through hydrogen bonding and are organized into a chains propagating along the c-axis direction
In a continuation of this work, we describe the synthesis and structure of the title salt I, isolated from an equimolar mixture of oxalic acid and ethylamine
Summary
Ammonium carboxylate networks obtained by mixing dicarboxylic acids with amines is of interest in the field of crystal engineering (Ballabh et al 2002; Haynes & Pietersen, 2008; Dziuk et al 2014a). These compounds exhibit a variety of structures that can lead, through non-covalent interactions (hydrogen bonding, – stacking, van der Waals and C—HÁ Á Á contacts), to a large diversity of architectures and topologies.
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