data_global _amcsd_formula_title 'Co2Si' loop_ _publ_author_name 'Wyckoff R W G' _journal_name_full 'Crystal Structures' _journal_volume 1 _journal_year 1963 _journal_page_first 298 _journal_page_last 306 _publ_section_title ; Second edition. Interscience Publishers, New York, New York ; _database_code_amcsd 0011888 _chemical_formula_sum 'Si Co2' _cell_length_a 7.109 _cell_length_b 4.918 _cell_length_c 3.738 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 130.688 _exptl_crystal_density_diffrn 7.418 _symmetry_space_group_name_H-M 'P b n m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,y,1/2-z' '-x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Si 0.61100 0.70200 0.25000 Co1 0.21800 0.03800 0.25000 Co2 0.56200 0.17400 0.25000