data_global _amcsd_formula_title 'Mg2PtSi' loop_ _publ_author_name 'Range K J' 'Rau F' 'Klement U' _journal_name_full 'Acta Crystallographica, Section C' _journal_volume 46 _journal_year 1990 _journal_page_first 1092 _journal_page_last 1093 _publ_section_title ; Dimagnesium platinum silicon ; _database_code_amcsd 0010146 _chemical_formula_sum 'Mg2 Pt Si' _cell_length_a 4.254 _cell_length_b 4.254 _cell_length_c 8.542 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 133.871 _exptl_crystal_density_diffrn 6.742 _symmetry_space_group_name_H-M 'P 63/m m c' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-x+y,1/2+z' 'x,x-y,1/2-z' '-x+y,-x,1/2-z' 'x-y,x,1/2+z' '-y,-x,z' 'y,x,-z' 'y,-x+y,-z' '-y,x-y,z' 'x-y,-y,1/2+z' '-x+y,y,1/2-z' 'x,y,1/2-z' '-x,-y,1/2+z' 'x,x-y,z' '-x,-x+y,-z' 'x-y,x,-z' '-x+y,-x,z' 'y,x,1/2+z' '-y,-x,1/2-z' '-y,x-y,1/2-z' 'y,-x+y,1/2+z' '-x+y,y,z' 'x-y,-y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Mg 0.33333 0.66667 0.57820 0.03800 Pt 0.33333 0.66667 0.25000 0.00850 Si 0.00000 0.00000 0.25000 0.01900