F7 H12 N3 Zr Hampson G, Pauling L Journal of the American Chemical Society 60 (1938) 2702-2707 The Structure of Ammonium Heptafluozirconate and Potassium Heptafluozirconate and the Configuration of the Heptafluozirconate Group _cod_database_code 1010099 _database_code_amcsd 0017032 9.365 9.365 9.365 90 90 90 Fm3m atom x y z occ N1 .28 .28 .28 .25 N2 .5 .5 .5 Zr1 .99 .99 .99 .125 F1 .12 .12 .12 .125 F2 .2 .96 .91 .0625 F3 .77 .94 .99 .0625