1. Dinitrogen complexation and reduction at low-valent calcium.
- Author
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Rösch, B., Gentner, T. X., Langer, J., Färber, C., Eyselein, J., Zhao, L., Ding, C., Frenking, G., and Harder, S.
- Subjects
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NITROGEN reduction , *HYDRAZINES , *CALCIUM compounds , *COMPLEX compounds , *ELECTRON donors - Abstract
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 N2 2ˉ 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 N2 2ˉ 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. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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