Crystal structure of NH(4)[La(SO(4))(2)(H(2)O)]

The principal building units in the crystal structure of ammonium aqua­bis(sulfato)­lanthanate(III) are slightly distorted SO(4) tetra­hedra, LaO(9) polyhedra in the form of distorted tricapped trigonal prisms, and NH(4) (+) ions. The La(3+) cation is coordinated by eight O atoms from six different sulfate tetra­hedra, two of which are bidentate coordinating and four monodentate, as well as one O atom from a water mol­ecule; each sulfate anion bridges three La(3+) cations. These bridging modes result in the formation of a three-dimensional anionic [La(SO(4))(2)(H(2)O)](−) framework that is stabilized by O—H⋯O hydrogen-bonding inter­actions. The disordered ammonium cations are situated in the cavities of this framework and are hydrogen-bonded to six surrounding O atoms.