data_global _amcsd_formula_title 'Mn2 Nd Si2' loop_ _publ_author_name 'Welter R' 'Venturini G' 'Fruchart D' 'Malaman B' _journal_name_full 'Journal of Alloys and Compounds' _journal_volume 191 _journal_year 1993 _journal_page_first 263 _journal_page_last 270 _publ_section_title ; Magnetic structures of PrMn2Si2 and NdMn2Si2 from neutron diffraction studies _cod_database_code 1008546 ; _database_code_amcsd 0016437 _chemical_formula_sum 'Nd Mn2 Si2' _cell_length_a 3.998 _cell_length_b 3.998 _cell_length_c 10.510 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 167.992 _exptl_crystal_density_diffrn 6.134 _symmetry_space_group_name_H-M 'I 4/m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' '-y,-x,z' '1/2-y,1/2-x,1/2+z' 'y,x,-z' '1/2+y,1/2+x,1/2-z' 'y,-x,-z' '1/2+y,1/2-x,1/2-z' '-y,x,z' '1/2-y,1/2+x,1/2+z' 'x,-y,z' '1/2+x,1/2-y,1/2+z' '-x,y,-z' '1/2-x,1/2+y,1/2-z' 'x,y,-z' '1/2+x,1/2+y,1/2-z' '-x,-y,z' '1/2-x,1/2-y,1/2+z' 'y,x,z' '1/2+y,1/2+x,1/2+z' '-y,-x,-z' '1/2-y,1/2-x,1/2-z' '-y,x,-z' '1/2-y,1/2+x,1/2-z' 'y,-x,z' '1/2+y,1/2-x,1/2+z' '-x,y,z' '1/2-x,1/2+y,1/2+z' 'x,-y,-z' '1/2+x,1/2-y,1/2-z' '-x,-y,-z' '1/2-x,1/2-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Nd1 0.00000 0.00000 0.00000 Mn1 0.00000 0.50000 0.25000 Si1 0.00000 0.00000 0.38060