SODIUM AZIDE AS A REAGENT FOR SOLID STATE METATHESIS PREPARATIONS OF REFRACTORY METAL NITRIDES

摘要

Thermal initiation (similar to 300 degrees C) of a reaction between sodium azide and anhydrous metal chlorides (LaCl3, SmCl3, TiCl3, ZrCl4, HfCl4, VCl3, TaCl5, CrCl2, WCl6, and MnCl2) in sealed evacuated ampoules rapidly produces binary metal nitrides, dinitrogen and sodium chloride. The metal nitrides were purified by trituration with methanol and characterized by powder X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis and FT-IR. [References: 33]