Phosphorus Oxonitridosodalites: Synthesis Using a Molecular Precursor and Structural Investigation by X-Ray and Neutron Powder Diffraction and31P MAS NMR Spectroscopy

The concept of adjusting the framework charge of sodalite-like compounds by substitution of O by N is exemplified by the novel oxonitridosodalites M8−mHm[P12N18O6]X2 (MCu, Li; XCl, Br, I). The framework of these compounds, which are synthesized by reaction of the respective metal chlorides with (NH2)2P(O)NP(NH2)3⋅NH4Cl, consists of corner-sharing PN3O tetrahedra, as shown on the right.