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Rösch, B; Gentner, T X; Langer, J; Färber, C; Eyselein, J; Zhao, L; Ding, C; Frenking, G; Harder, S
Science (American Association for the Advancement of Science), 03/2021, Letnik: 371, Številka: 6534Journal Article
Here we report that attempted preparation of low-valent Ca complexes in the form of LCa-CaL (where L is a bulky β-diketiminate ligand) under dinitrogen (N ) atmosphere led to isolation of LCa(N )CaL, which was characterized crystallographically. The N - anion in this complex reacted in most cases as a very potent two-electron donor. Therefore, LCa(N )CaL acts as a synthon for the low-valent Ca complex LCa-CaL, which was the target of our studies. The N - anion could also be protonated to diazene (N H ) that disproportionated to hydrazine and N The role of Ca d orbitals for N activation is discussed.
