*2.2. Catalyzation of Organic Modified Anderson-Type POMs (PO)* 2.2.1. [I]+PO

In 2017, Wei and co-workers reported an organic ligand-stable β-isomer Andersontype POMs: [NH4]*β*-{[H3NC(CH2O)3]2MnMo6O18}[49]. The sub-nano-cluster acts as a highly active catalyst applied in selectively catalyzed oxidation of cyclohexanone, cyclohexanol, or a mixture thereof. The results show that the special butterfly topology of Anderson-type POMs significantly improves the catalytic activity. Additionally, due to its high selectivity and high catalytic conversion efficiency, it can enable use for the green industrial synthesis of adipic acid.
