The first polyoxoalkoxovanadium germanate anion with a novel cage-like structure: solvothermal synthesis and characterization

The first example of polyoxoalkoxovanadium germanate, (NH4)2[H2V9Ge6O26(L)6]·0.65H2O (H2L = HOCH2CH2OH), was solvothermally synthesized, and its polyanion is made up of six VO6 octahedra, three VO5 square pyramids and six GeO4 tetrahedra with six bridging ethylene glycol ligands projecting outwards from the central core.