Citation: Ben Yaich, H; Jegaden, J C; Potel, M; Sergent, M; Rastogi, A K; Tournier, R (1984). Nouveaux chalcogenures et chalcohalogenures a clusters tetraedriques Nb4 ou Ta4. Journal of the Less-Common Metals, 102, pp. 9-22.
Formula: I4 Nb4 Se4
Chemical name:Tetraniobium tetraselenide tetraiodide