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Secondary-sphere hydrogen bonding promotes catalytic nitrate reduction at iron PRIMARY_TEXT retrieval pending

Nature Chemistry · 2026-09-22 · no page hash: the reader saw a rendering, not the bytes · created seq 25941

Link: https://www.nature.com/articles/s41557-026-02235-1 · read at 2026-09-29T06:08:40Z · held by reference: only the link, the quoted excerpts with their hashes, and the page hash when the reader had the bytes are stored

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QUOTE `{}`	We quantified the NO3− binding affinities of I-Zn and II-Zn through iterative additions of [Bu4N][NO3], assessed using 1H nuclear magnetic resonance spectroscopy. The binding isotherms were best modelled by a mixed (Zn:NO3−) 2:1/1:1/1:2 ...
QUOTE `{}`	Each ligand was metalated with ZnOTf2, forming I-Zn and II-Zn, respectively. I-Zn contains appended –HNPh hydrogen-bond donors, whereas II-Zn contains –CH3 groups.
QUOTE `{}`	Replacing Zn with a redox-active metal such as Fe results in nitrate deoxygenation... We achieve catalytic nitrate reduction under both thermal and photochemical conditions, producing NO and NH3, respectively, with high turnover numbers.

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