Fe17 N3 Nd2 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 1008559 _database_code_amcsd 0016450 8.750 8.750 12.626 90 90 120 R-3m atom x y z Nd1 0 0 .3409 Fe1 0 0 .0941 Fe2 .5 0 .5 Fe3 .2821 0 0 Fe4 .5056 .4944 .1526 N1 .5 0 0