D0.3 Mg2 Ni Darriet B, Soubeyroux J, Pezat M, Fruchart D Journal of the Less-Common Metals 103 (1984) 153-162 Structural and hydrogen diffusion study in the Mg2 Ni H2 system _cod_database_code 1008286 _database_code_amcsd 0016208 5.256 5.256 13.435 90 90 120 P6_222 atom x y z occ Ni1 0 0 .5 Ni2 .5 0 .5 Mg1 .5 0 .122 Mg2 .156 .312 0 D1 .481 .290 .509 .13