Octamolybdate subunits as building blocks in the hydrothermal synthesis of organically templated mixed metal oxides (see abstract)

The hydrothermal reactions of MoO₃, an appropriate Cu(II) source, and a dipodal nitrogen donor ligand yielded a series of bimetallic oxides [Cu₂Mo₄O₁₃(3,3′-bipy)₂] ·H₂O(1·H₂O), [CuMo₄O₁₃(Hdipyreth)] (2), and [Cu(dpp)]₂[Cu₂(α-Mo₈O₂₆) (dpp)₂]·2H₂O (3·2H₂O). (3,3′-bipy = 3,3′-bipyridine; dipyreth = 1,2-bis(2-pyridyl)ethylene; dpp = 4,4′-trimethylenedipyridine). The materials 1· H₂O and 2 are constructed from octamolybdate clusters linked through copper-ligand subunits, while 3·2H₂O exhibits fused octamolybdate building blocks in a two-dimensional molybdate chain.