Boron Oganov A R, Chen J, Gatti C, Ma Y, Ma Y, Glass C W, Liu Z, Yu T, Kurakevych O O, Solozhenko V L Nature 457 (2009) 863-867 Ionic high-pressure form of elemental boron Note: theoretical calculation _database_code_amcsd 0014681 5.054 5.620 6.987 90 90 90 Pnnm atom x y z B1 .1702 .5206 0 B2 .1606 .2810 .3743 B3 .3472 .0924 .2093 B4 .3520 .2711 0 B5 .1644 .0080 0