Abstract
Reaction of anhydrous metal chlorides and lithium amide at 160–400 °C induces an exothermic reaction with formation of lithium chloride and an amorphous material. Trituration of the product with tetrahydrofuran (THF) followed by thermolysis at 700 °C for 1–2 h results in the formation of crystalline metal nitrides of varying composition (TiN, ZrN, HfN, VN, NbN, TaN, Cr2N, CrN, Mo2N, W2N, Mn3N2 and Zn3N2). Reactions involving iron, nickel, copper and indium chlorides with lithium amide yielded the metallic elements. The reactions of lithium dimethylamide and lithium diisopropyl amide and selected metal chlorides also produced metal nitrides under comparable reaction conditions. The metal nitrides were analysed by powder XRD, microanalysis, magnetic moment measurements, FTIR and SEM/EDXA.
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