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Free keywords:
iron; isotope labeling; nitrogen fixation; nitrogen; sulfur
Competitive catalysts; nitrogen-fixation; sulfur; complexes;
cofactor; enzymes
Abstract:
Nitrogen fixation under mild conditions is still one of the most challenging tasks in chemistry. A method for the synthesis of ammonia from molecular nitrogen using hydrogen sulfide as a reductant and freshly precipitated iron sulfide as a mediator is described. The reaction (see scheme) may be a primordial inorganic ancestor of the enzyme nitrogenase.
