Photoselective isotope fractionation dynamics of N2 with cosmo and atmospheric chemistry perspectives

Proceedings of the National Academy of Sciences, Volume 122, Issue 29, July 2025. <br/>SignificanceNitrogen is a common element in Earth’s atmosphere and the broader galaxy, playing a central role in the formation of biomolecules. While molecular nitrogen (N2) is exceptionally stable and chemically inert, photodissociation cleaves its …