Tetraethylammonium bicarbonate trihydrate

In the title compound, C8H20N+center dot CHO3-center dot 3H(2)O, the bicarbonate anion, which has a small mean deviation from the plane of 0.0014 angstrom, fully utilises its three O and one H atom to form various O-H center dot center dot center dot O hydrogen bonds with the three water molecules in the asymmetric unit, generating a hydrogen-bonded layer, which extends along (10 (1) over bar). The tetraethylammonium cations, as the guest species, are accommodated between every two neighboring layers, constructing a sandwich-like structure with an interlayer distance of 7.28 angstrom.