Gases like H2, N2, CO2, and CO are increasingly recognized as critical feedstock in “green”
energy conversion and as sources of nitrogen and carbon for the agricultural and chemical …

Pendant amines play an invaluable role in chemical reactivity, especially for molecular
catalysts based on earth-abundant metals. As inspired by [FeFe]-hydrogenases, which …

While hydrogen plays an ever-increasing role in modern society, nature has utilized
hydrogen since a very long time as an energy carrier and storage molecule. Among the …

Hydrogenase enzymes efficiently process H2 and protons at organometallic FeFe, NiFe, or
Fe active sites. Synthetic modeling of the many H2ase states has provided insight into …

The reaction takes place at a specialized metal center that dramatically increases the acidity
of H2 and leads to a heterolytic splitting of the molecule which is strongly accelerated by the …

Abstract The [FeFe]-and [NiFe]-hydrogenases catalyze the formal interconversion between
hydrogen and protons and electrons, possess characteristic non-protein ligands at their …

Abstract [FeFe]-hydrogenases are efficient H2-catalysts, yet upon contact with dioxygen their
catalytic cofactor (H-cluster) is irreversibly inactivated. Here, we combine X-ray …

Catalysis enables many aspects of modern life, including fuels, products, plastics, and
medicines. Recent advances in catalysis have enabled us to realize higher efficiencies and …

Conspectus Redox active metalloenzymes play a major role in energy transformation
reactions in biological systems. Examples include formate dehydrogenases, nitrogenases …

Diiron complexes mimicking the H-cluster of [FeFe]-hydrogenases have been extensively
studied as (electro-) catalysts for proton reduction under homogeneous conditions. The …