data_global _amcsd_formula_title 'MnB2' loop_ _publ_author_name 'Aronsson B' _journal_name_full 'Acta Chemica Scandinavica' _journal_volume 14 _journal_year 1960 _journal_page_first 1414 _journal_page_last 1418 _publ_section_title ; A note on the compositions and crystal structures of MnB2, Mn3Si, Mn5Si3 and FeSi2 ; _database_code_amcsd 0018917 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Mn B2' _cell_length_a 3.007 _cell_length_b 3.007 _cell_length_c 3.037 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 23.782 _exptl_crystal_density_diffrn 5.346 _symmetry_space_group_name_H-M 'P 6/m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-x+y,z' 'x,x-y,-z' '-x+y,-x,-z' 'x-y,x,z' '-y,-x,z' 'y,x,-z' 'y,-x+y,-z' '-y,x-y,z' 'x-y,-y,z' '-x+y,y,-z' 'x,y,-z' '-x,-y,z' 'x,x-y,z' '-x,-x+y,-z' 'x-y,x,-z' '-x+y,-x,z' 'y,x,z' '-y,-x,-z' '-y,x-y,-z' 'y,-x+y,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 Mn 0.00000 0.00000 0.00000 B 0.33333 0.66667 0.50000