A new organic-inorganic hybrid based on dimeric [Mn2V22O64]10 − polyoxoanion as catalyst for oxidation of sulfides

•A rare example of organic-inorganic hybrid based on [Mn2V22O64]10 − polyoxoanion has been synthesized.•A three-dimensional supramolecular structure is formed in the hybrid through hydrogen bond.•The hybrid exhibits high activity in the oxidation of sulfide.

A new organic-inorganic hybrid compound constructed from [Mn2V22O64]10 − units, H6[(C6H4NO2Cu(H2O)4)]2[Mn2V22O64]·28H2O 1, has been synthesized and characterized by single-crystal X-ray diffraction, IR, powder X-ray diffraction (XPRD) and TG. Compound 1 is composed of dimeric [Mn2V22O64]10 − polyoxoanions, metal-organo fragments [(C6H4NO2Cu(H2O)4)]2 + and lattice water molecules. Moreover, a three-dimensional supramolecular structure is formed in 1 by the extensive hydrogen bond interaction among the terminal oxygen atoms of [Mn2V22O64]10 − anions, the coordinated waters of Cu2 + ions and crystal water molecules. Compound 1 exhibits remarkable catalytic activity for the heterogeneous oxidation of sulfides under mild condition.

Graphical abstractA new organic-inorganic hybrid compound constructed from [Mn2V22O64]10 − units, H6[(C6H4NO2Cu(H2O)4)]2[Mn2V22O64]·28H2O, has been synthesized and it exhibits remarkable catalytic activity for the heterogeneous oxidation of sulfides under mild condition.Figure optionsDownload full-size imageDownload as PowerPoint slide