data_global _amcsd_formula_title 'Mn O4 Sr2' loop_ _publ_author_name 'Bouloux J' 'Soubeyroux J' 'le Flem G' 'Hagenmueller P' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 38 _journal_year 1981 _journal_page_first 34 _journal_page_last 39 _publ_section_title ; Bidimensional Magnetic Properties of beta- Sr2 Mn O4 _cod_database_code 1008125 ; _database_code_amcsd 0016067 _chemical_formula_sum 'Sr2 Mn O4' _cell_length_a 3.787 _cell_length_b 3.787 _cell_length_c 12.496 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 179.210 _exptl_crystal_density_diffrn 5.452 _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 Sr1 0.00000 0.00000 0.35600 Mn1 0.00000 0.00000 0.00000 O1 0.00000 0.50000 0.00000 O2 0.00000 0.00000 0.15700