inorganic compounds
Ammonium uranyl(2+) hydrogenselenite(1-) selenite(2-), (NH4)[UO2(HSeO3)(SeO3)] has a layered structure, with the only hydrogen bonding provided by the NH4+ ion and probably the protonated O atom of the hydrogenselenite ion connecting the layers. The U atom is surrounded by a pentagonal bipyramidal arrangement of O atoms.