data_global _chemical_name_mineral 'Boron' loop_ _publ_author_name 'Geist D' 'Kloss R' 'Follner H' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 26 _journal_year 1970 _journal_page_first 1800 _journal_page_last 1802 _publ_section_title ; Verfeinerung des beta-rhomboedrischen bors ; _database_code_amcsd 0009380 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'B35' _cell_length_a 10.17 _cell_length_b 10.17 _cell_length_c 10.17 _cell_angle_alpha 65.12 _cell_angle_beta 65.12 _cell_angle_gamma 65.12 _cell_volume 826.857 _exptl_crystal_density_diffrn 2.280 _symmetry_space_group_name_H-M 'R -3 m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-z,-y' '-z,-x,-y' 'y,x,z' 'y,z,x' '-z,-y,-x' '-x,-y,-z' 'x,z,y' 'z,x,y' '-y,-x,-z' '-y,-z,-x' 'z,y,x' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv B1 0.00250 0.00250 0.16800 0.00735 B2 0.10080 0.10080 0.83740 0.00988 B3 0.99330 0.99330 0.66980 0.00545 B4 0.10320 0.10320 0.49210 0.00773 B5 0.17770 0.34730 0.00330 0.01077 B6 0.16730 0.55210 0.89210 0.00735 B7 0.19830 0.19830 0.68740 0.00697 B8 0.37650 0.68260 0.20240 0.00925 B9 0.36220 0.58110 0.09760 0.00684 B10 0.19910 0.19910 0.50610 0.01216 B11 0.38730 0.38730 0.56900 0.03217 B12 0.48950 0.48950 0.21780 0.00760 B13 0.38430 0.38430 0.21310 0.00697 B14 0.38480 0.38480 0.38480 0.00773 B15 0.50000 0.50000 0.50000 0.00861