“…Our knowledge about ternary nitrides of transition metals of group V and VI of the PSE with alkali metals from Li to Cs has grown in the last years (Jacobs, von Pinkowski, 1989;Jacobs, Niewa, 1994;Ostermann, Zachwie-ja, Vennos, DiSalvo, 1992;Elder, Dorrer, DiSalvo, 1992; Subramanya Herle, Hegde, Vasanthacharya, Gopalakrishnan, Subbanna, 1994;Gudat, Haag, Kniep, Rabenau, 1990). In contrast only two ternary lithium nitrides of group IV transition metals are known: Li2ZrN2 and Li2HfN2 (Palisaar, Juza, 1971;Barker, Alexander, 1974).…”