Chemical Synthesis of C₃N and BC₂N Compounds

A chemical reaction for the preparation of B--C--N compounds by using carbon tetrachloride (CCl₄), boron tribromide (BBr₃), lithium nitride (Li₃N) and sodium as reactants has been carried out at the temperature of 400°C. Measurements of FTIR, XRD, TEM and EELS show that two kinds of compounds have been formed in the prepared sample. One is hollow sphere-like C--N with an amorphous structure; the other is piece-like polycrystalline B--C--N with the hexagonal structure. Their determined compositions are close to C₃N and BC₂N, respectively.