Crystal structure of [UO(NH)]NO·NH.

Penta-ammine dioxide uranium(V) nitrate ammonia (1/1), [UO(NH)]NO·NH, was obtained in the form of yellow crystals from the reaction of caesium uranyl nitrate, Cs[UO(NO)], and uranium tetra-fluoride, UF, in dry liquid ammonia. The [UO] cation is coordinated by five ammine ligands. The resulting [UO(NH)] coordination polyhedron is best described as a penta-gonal bipyramid with the O atoms forming the apices. In the crystal, numerous N-H⋯N and N-H⋯O hydrogen bonds are present between the cation, anion and solvent mol-ecules, leading to a three-dimensional network.