data_2013259 _journal_name_full 'Acta Crystallographica, Section C' _journal_year 2003 _journal_volume 59 _journal_page_first i47 _journal_page_last i49 _publ_section_title ; A new polytype of orthoboric acid, H~3~BO~3~-3T ; loop_ _publ_author_name 'Shuvalov, Robert R.' 'Burns, Peter C.' _chemical_name_common 'orthoboric acid' _chemical_formula_moiety 'H3 B O3' _chemical_formula_sum 'B H3 O3' _chemical_formula_iupac 'H3 B O3' _chemical_formula_weight 61.83 _symmetry_cell_setting Trigonal _symmetry_space_group_name_H-M 'P 32' _symmetry_space_group_name_Hall 'P 32' loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-y, x-y, z+2/3' '-x+y, -x, z+1/3' _cell_length_a 7.0453(4) _cell_length_b 7.0453(4) _cell_length_c 9.5608(7) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 410.98(4) _cell_formula_units_Z 6 _cell_measurement_temperature 297(2) _exptl_crystal_density_diffrn 1.499 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_adp_type _atom_site_calc_flag _atom_site_refinement_flags _atom_site_occupancy _atom_site_disorder_assembly _atom_site_disorder_group _atom_site_type_symbol B1 0.1837(9) 0.6403(10) 0.2849(7) 0.0485(17) Uani d . 1 . . B B2 0.5180(5) 0.3069(5) 0.2964(5) 0.0277(9) Uani d . 1 . . B O1 0.0621(6) 0.7393(7) 0.2805(3) 0.0514(8) Uani d D 1 . . O O2 0.0864(6) 0.4195(5) 0.2808(3) 0.0467(7) Uani d D 1 . . O O3 0.4090(5) 0.7650(6) 0.2869(3) 0.0441(8) Uani d D 1 . . O O4 0.6437(6) 0.2103(5) 0.2929(2) 0.0413(7) Uani d D 1 . . O O5 0.2950(6) 0.1832(6) 0.2998(3) 0.0506(8) Uani d D 1 . . O O6 0.6136(7) 0.5294(6) 0.2904(3) 0.0464(8) Uani d D 1 . . O H1 0.133(4) 0.877(3) 0.316(3) 0.015(7) Uiso d D 1 . . H H2 -0.057(3) 0.361(5) 0.311(3) 0.013(7) Uiso d D 1 . . H H3 0.483(4) 0.695(4) 0.311(3) 0.022(7) Uiso d D 1 . . H H4 0.565(5) 0.077(4) 0.333(3) 0.048(10) Uiso d D 1 . . H H5 0.243(5) 0.274(4) 0.324(3) 0.027(8) Uiso d D 1 . . H H6 0.755(3) 0.602(4) 0.318(3) 0.027(8) Uiso d D 1 . . H 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 0.045(3) 0.056(3) 0.050(3) 0.029(2) -0.0005(16) -0.002(2) B2 0.0144(12) 0.0177(14) 0.053(3) 0.0093(11) 0.0007(10) 0.0015(11) O1 0.0246(14) 0.0384(18) 0.097(2) 0.0198(14) -0.0021(15) -0.0049(16) O2 0.0263(15) 0.0278(14) 0.0859(19) 0.0133(13) -0.0038(16) -0.0024(14) O3 0.0233(12) 0.0254(14) 0.082(2) 0.0108(12) -0.0006(14) -0.0032(14) O4 0.0279(16) 0.0249(15) 0.072(2) 0.0138(14) -0.0007(13) -0.0025(12) O5 0.0284(14) 0.0379(18) 0.0902(19) 0.0201(13) -0.0026(15) 0.0010(16) O6 0.0307(19) 0.0325(15) 0.0772(18) 0.0167(13) 0.0070(15) 0.0080(13) loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_2 _geom_bond_distance _geom_bond_publ_flag B1 O1 . 1.349(5) yes B1 O2 . 1.350(6) yes B1 O3 . 1.377(6) yes B2 O4 . 1.361(4) yes B2 O5 . 1.364(4) yes B2 O6 . 1.363(5) yes O1 H1 . 0.91(2) no O2 H2 . 0.93(2) no O3 H3 . 0.91(2) no O4 H4 . 0.90(2) no O5 H5 . 0.91(2) no O6 H6 . 0.91(2) no