Ce2 Fe17 N3 Isnard O, Miraglia S, Soubeyroux J, Fruchart D Journal of Alloys and Compounds 190 (1992) 129-135 Nitrogen gas pressure synthesis and neutron diffraction study of R2Fe17N3 with R=Ce and Nd _cod_database_code 1008558 _database_code_amcsd 0016449 8.737 8.737 12.702 90 90 120 R-3m atom x y z Ce1 0 0 .3425 Fe1 0 0 .0963 Fe2 .5 0 .5 Fe3 .2793 0 0 Fe4 .5049 .4951 .1537 N1 .5 0 0