Alkali metal nitrides

Abstract

Alkali Metal NitridesThe interaction of metals with gaseous nitrogen, a process sometimes described as nitridation, produces either ionic, covalent or interstitial nitrides. Only the highly electropositive elements give the ionic type of compound. These contain the unusual N-3 anion, display characteristics of crystalline conduction, and on electrolysis in the fused state give nitrogen at the anode (1): N + 3e -VsNs

Dinitrogen complexation and reduction at low-valent calcium

“…Competing interests: The authors declare no competing interests. Data and materials availability: X-ray data are available free of charge from the Cambridge Crystallographic Data Centre under reference numbers CCDC 2036237 (1), 2036238 (2), 2036239 (3), 2036240 (4), 2036241 (5), 2036242 (6), 2036243 (7), 2036244 (8), 2036245 (9), 2036246 (10), and 2036247 (11). All other experimental, spectroscopic, crystallographic, and computational data are included in the supplementary materials.…”

Reductive activation of N2 using a calcium/potassium bimetallic system supported by an extremely bulky diamide ligand

“…boron) compound, was not reported until 2018, by Braunschweig and co-workers. 1,6 Similarly, and although elemental lithium is well known to react with N 2 to give Li 3 N under ambient conditions, 7 the only solely s-block metal complex to effect coordination and activation of N 2 in solution was described by Harder and co-workers in 2021. 8,9 This was achieved by reducing a solution of an extremely bulky β-diketiminato calcium iodide complex, under an N 2 atmosphere, with 5% w/w K/KI, 10 yielding complexes 1 , after treatment with cyclic ether donors (Fig.…”

Nitrogen fixation and transformation with main group elements

“…The unique reactivity of lithium can be attributed to its small size, which leads to a high lattice energy of lithium nitride. 42,43 Lithium nitride crystalizes in a space group P6/mmm (Fig. 2).…”