Unprecedented 1/∞[β-Mo8O26]4− polymeric chains and four novel organic-inorganic hybrids based on Mo-POMs and azaheterocycles templates

Using cation templated self-assembly four novel polyoxometalates were prepared. Compounds 1 and 2 consisted of independent [β-Mo8O26]4− anions and organic cations. Compound 3 is the first external template-assisted POMs with 1/∞[β-Mo8O26]4− chain. Compound 4 is a rare 3D net containing 1/∞[β-Mo8O26]4− 1D chain and DIE ligands. These compounds had definite catalytic activities on the acetaldehyde oxidation.