Ammonium ytterbium(III) diphosphate(V)

Abstract

The title compound, NH4YbP2O7, crystallizes in the KAlP2O7 structure type and consists of distorted YbO6 octahedra and bent P2O74− diphosphate units forming together a three-dimensional network. There are channels in the structure running along the c axis, where the NH4+ cations are located. They are connected via N—H...O hydrogen bonds to the terminal O atoms of the diphosphate anions.