data_global _amcsd_formula_title 'P' loop_ _publ_author_name 'Hultgren R' 'Gingrich N' 'Warren B' _journal_name_full 'Journal of Chemical Physics' _journal_volume 3 _journal_year 1935 _journal_page_first 351 _journal_page_last 355 _publ_section_title ; The Atomic Distribution in Red and Black Phosphorus and the Crystal Structure of Black Phosphorus _cod_database_code 1010325 ; _database_code_amcsd 0017251 _chemical_formula_sum 'P' _cell_length_a 3.31 _cell_length_b 4.38 _cell_length_c 10.5 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 152.227 _exptl_crystal_density_diffrn 2.703 _symmetry_space_group_name_H-M 'B m a b' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,y,1/2+z' 'x,1/2+y,1/2-z' '1/2+x,1/2+y,-z' '-x,1/2-y,1/2+z' '1/2-x,1/2-y,+z' '-x,y,z' '1/2-x,y,1/2+z' 'x,-y,-z' '1/2+x,-y,1/2-z' 'x,1/2-y,1/2+z' '1/2+x,1/2-y,+z' '-x,1/2+y,1/2-z' '1/2-x,1/2+y,-z' '-x,-y,-z' '1/2-x,-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z P1 0.00000 0.09000 0.09800