A pure inorganic 1D chain based on {Mo8O28} clusters and Mn(II) ions: [Mn(H2O)2Mo8O28]n6n−[Mn(H2O)2Mo8O28]n6n−

•The first example of pure inorganic–inorganic hybrid based on octamolybdate and transition metal ions.•A Novel Pure Inorganic 1D Chain.•A definite catalytic activities on the selective oxidation of benzyl alcohol oxidation.

A new pure inorganic polymer, (NH4)6n[Mn(H2O)2Mo8O28)]n(H2O)2n(1), has been synthesized and characterized by elemental analyses, IR spectrum, UV–vis absorption spectra, TG-DSC and electrochemical studies. In 1, [Mo8O28]8− anions act as tetradentate ligands and are alternately linked by Mn(H2O)22+Mn(H2O)22+ ions into a one-dimensional chain structure. It is interesting that 1 represents the first example of pure inorganic–inorganic hybrid based on octamolybdate and transition metal ions. Moreover, it was indicated that 1 had definite catalytic activities on the probe reaction of benzyl alcohol oxidation to benzaldehyde with H2O2.

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