Nitrosonium nitratometallates NO[M(NO3)3] (M = Co, Ni): new synthetic approach and crystal structures

Monoclinic and triclinic modifications of nitrosonium nitratonickelate NO[Ni(NO₃)₃] as well as triclinic modification of nitrosonium nitratocobaltate NO[Co(NO₃)₃] (isostructural to triclinic NO[Ni(NO₃)₃]) have been synthesized by a new synthetic approach. Single crystal XRD studies revealed the similarity of all these structures in which octahedrally coordinated metal atoms are connected through NO₃^- bridges forming three-dimensional distorted cubic framework with NO⁺ cations located in the framework cavities.