Abstract
The performance of rhodium complex [Cp*Rh(bis(pyrazol‐1‐yl)methane)Cl]Cl was evaluated for formic acid dehydrogenation in aqueous solution. Solid‐state X‐ray diffraction helped to confirm the catalyst structure. Multinuclear NMR spectroscopy was employed to follow the dehydrogenation of formic acid. The reactions have been carried out in high‐pressure NMR sapphire tubes. An activation energy of +77.19 ± 4 kJ/mol was determined via an Arrhenius plot, which is in good agreement with literature findings. The catalyst afforded a TOF of 1086 h–1 and exhibited good stability. Based on our observations and literature, we propose a catalytic cycle.
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