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Rh³⁺ stabilized in KRh@MFI catalyses regioselective hydroformylation

DFT investigations combined with spectroscopic and catalytic studies of disrupted subnanometric Rh2O3 clusters show that Rh+ centres in a zeolite-based catalyst are blocked with N-containing molecules, whereas Rh3+ sites are stabilized, allowing hydroformylation reactions with enhanced regioselectivity and efficiency.

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