Dinitrogen complexation and reduction at low-valent calcium

Rösch B, Gentner T, Langer J, Färber C, Eyselein J, Zhao L, Ding C, Frenking G, Harder S (2021)

Publication Type: Journal article

Publication year: 2021


Book Volume: 371

Pages Range: 1125-1128

Journal Issue: 6534

DOI: 10.1126/science.abf2374


Here we report that attempted preparation of low-valent CaI complexes in the form of LCa-CaL (where L is a bulky b-diketiminate ligand) under dinitrogen (N2) atmosphere led to isolation of LCa(N2)CaL, which was characterized crystallographically. The N22- anion in this complex reacted in most cases as a very potent two-electron donor. Therefore, LCa(N2)CaL acts as a synthon for the low-valent CaI complex LCa-CaL, which was the target of our studies. The N22- anion could also be protonated to diazene (N2H2) that disproportionated to hydrazine and N2. The role of Ca d orbitals for N2 activation is discussed.

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Rösch, B., Gentner, T., Langer, J., Färber, C., Eyselein, J., Zhao, L.,... Harder, S. (2021). Dinitrogen complexation and reduction at low-valent calcium. Science, 371(6534), 1125-1128. https://doi.org/10.1126/science.abf2374


Rösch, Bastian, et al. "Dinitrogen complexation and reduction at low-valent calcium." Science 371.6534 (2021): 1125-1128.

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