October 1997 issue
cif-access (metal-organic compounds)
cif-access (organic compounds)
The structure of Cu3Mo2O9 consists of strings of corner-sharing CuO6 octahedra linked to CuO5 square pyramids and MoO4 tetrahedra by edges and corners, respectively. The structure contains the Jahn–Teller active ion Cu2+ in unusual compressed octahedral coordination.
Rietveld refinement of a new layered molybdate from the [MonO3n+1]2− series, (NH3CH3)2[Mo7O22], showed that the molybdenum coordination polyhedra are significantly distorted octahedra. The methylammonium cations are incorporated between the layers.