Na3 (B N2)

BN₂Na₃

Oehlinger, G.Sendlinger, B.Muensterkoetter, M.Polborn, K.Evers, J.

Journal of the Less-Common Metals (1990) 162, 17-22

a=5.717Å   b=7.931Å   c=7.883Å

α=90°   β=111.32°   γ=90°