data_global _amcsd_formula_title 'H3BO3' loop_ _publ_author_name 'Shuvalov R R' 'Burns P C' _journal_name_full 'Acta Crystallographica' _journal_volume 59 _journal_year 2003 _journal_page_first i47 _journal_page_last i49 _publ_section_title ; A new polytype of orthoboric acid, H3BO3-3T ; _database_code_amcsd 0018654 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'B O3 H3' _cell_length_a 7.0453 _cell_length_b 7.0453 _cell_length_c 9.5608 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 410.983 _exptl_crystal_density_diffrn 1.499 _symmetry_space_group_name_H-M 'P 32' loop_ _space_group_symop_operation_xyz 'x,y,z' '-y,x-y,2/3+z' '-x+y,-x,1/3+z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv B1 0.18370 0.64030 0.28490 0.04850 B2 0.51800 0.30690 0.29640 0.02770 O1 0.06210 0.73930 0.28050 0.05140 O2 0.08640 0.41950 0.28080 0.04670 O3 0.40900 0.76500 0.28690 0.04410 O4 0.64370 0.21030 0.29290 0.04130 O5 0.29500 0.18320 0.29980 0.05060 O6 0.61360 0.52940 0.29040 0.04640 H1 0.13300 0.87700 0.31600 0.01500 H2 -0.05700 0.36100 0.31100 0.01300 H3 0.48300 0.69500 0.31100 0.02200 H4 0.56500 0.07700 0.33300 0.04800 H5 0.24300 0.27400 0.32400 0.02700 H6 0.75500 0.60200 0.31800 0.02700 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 B1 0.04500 0.05600 0.05000 0.02900 -0.00050 -0.00200 B2 0.01440 0.01770 0.05300 0.00930 0.00070 0.00150 O1 0.02460 0.03840 0.09700 0.01980 -0.00210 -0.00490 O2 0.02630 0.02780 0.08590 0.01330 -0.00380 -0.00240 O3 0.02330 0.02540 0.08200 0.01080 -0.00060 -0.00320 O4 0.02790 0.02490 0.07200 0.01380 -0.00070 -0.00250 O5 0.02840 0.03790 0.09020 0.02010 -0.00260 0.00100 O6 0.03070 0.03250 0.07720 0.01670 0.00700 0.00800