#------------------------------------------------------------------------------ #$Date: 2023-03-24 16:37:27 +0000 (Fri, 24 Mar 2023) $ #$Revision: 282053 $ #$URL: svn://www.crystallography.net/cod/cif/2/20/45/2204579.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided by IUCr Journals, http://journals.iucr.org/. # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_2204579 loop_ _publ_author_name 'Yakubovich, Olga V.' 'Mochenova, Natalya N.' 'Dimitrova, Olga. V.' 'Massa, Werner' _publ_section_title ; Reinvestigation of the Pb~2~[B~5~O~9~]Br structure based on single-crystal data ; _journal_issue 11 _journal_name_full 'Acta Crystallographica, Section E' _journal_page_first i127 _journal_page_last i130 _journal_paper_doi 10.1107/S1600536804023232 _journal_volume 60 _journal_year 2004 _chemical_formula_iupac '[Pb2 (B5 O9) Br]' _chemical_formula_moiety 'B5 Br O9 Pb2' _chemical_formula_structural 'Pb2 (B5 O9) Br' _chemical_formula_sum 'B5 Br O9 Pb2' _chemical_formula_weight 692.34 _chemical_name_systematic ; Dilead pentaborate bromide ; _space_group_IT_number 34 _space_group_name_Hall 'P 2 -2n' _space_group_name_H-M_alt 'P n n 2' _symmetry_cell_setting orthorhombic _symmetry_space_group_name_Hall 'P 2 -2n' _symmetry_space_group_name_H-M 'P n n 2' _atom_sites_solution_primary direct _atom_sites_solution_secondary difmap _audit_creation_method SHELXL-97 _cell_angle_alpha 90.00 _cell_angle_beta 90.00 _cell_angle_gamma 90.00 _cell_formula_units_Z 4 _cell_length_a 11.4935(19) _cell_length_b 11.4717(19) _cell_length_c 6.5297(11) _cell_measurement_reflns_used 4734 _cell_measurement_temperature 293(2) _cell_measurement_theta_max 36.0 _cell_measurement_theta_min 3.5 _cell_volume 860.9(2) _computing_cell_refinement X-AREA _computing_data_collection 'X-AREA (Stoe & Cie, 2002)' _computing_data_reduction X-AREA _computing_molecular_graphics 'DIAMOND (Crystal Impact, 2000)' _computing_publication_material SHELXL97 _computing_structure_refinement 'SHELXL97 (Sheldrick, 1997)' _computing_structure_solution 'SHELXS97 (Sheldrick, 1997)' _database_code_amcsd 0010437 _diffrn_ambient_temperature 293(2) _diffrn_detector_area_resol_mean 150 _diffrn_measured_fraction_theta_full 0.998 _diffrn_measured_fraction_theta_max 0.998 _diffrn_measurement_device_type 'Stoe IPDS-II' _diffrn_measurement_method \w _diffrn_radiation_monochromator graphite _diffrn_radiation_source 'fine-focus sealed tube' _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength 0.71073 _diffrn_reflns_av_R_equivalents 0.0678 _diffrn_reflns_av_sigmaI/netI 0.0507 _diffrn_reflns_limit_h_max 16 _diffrn_reflns_limit_h_min -12 _diffrn_reflns_limit_k_max 16 _diffrn_reflns_limit_k_min -16 _diffrn_reflns_limit_l_max 9 _diffrn_reflns_limit_l_min -8 _diffrn_reflns_number 7497 _diffrn_reflns_theta_full 31.00 _diffrn_reflns_theta_max 31.00 _diffrn_reflns_theta_min 3.55 _diffrn_standards_number 0 _exptl_absorpt_coefficient_mu 43.731 _exptl_absorpt_correction_T_max 0.3868 _exptl_absorpt_correction_T_min 0.0933 _exptl_absorpt_correction_type numerical _exptl_absorpt_process_details ; (XPREP in SHELXTL; Sheldrick, 1996). ; _exptl_crystal_colour colourless _exptl_crystal_density_diffrn 5.341 _exptl_crystal_density_method 'not measured' _exptl_crystal_description column _exptl_crystal_F_000 1184 _exptl_crystal_size_max 0.13 _exptl_crystal_size_mid 0.025 _exptl_crystal_size_min 0.022 _refine_diff_density_max 1.955 _refine_diff_density_min -2.127 _refine_ls_abs_structure_details 'Flack (1983), 1059 Friedel pairs' _refine_ls_abs_structure_Flack -0.03(2) _refine_ls_extinction_coef 0.00036(10) _refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^ _refine_ls_extinction_method SHELXL97 _refine_ls_goodness_of_fit_ref 1.064 _refine_ls_matrix_type full _refine_ls_number_parameters 87 _refine_ls_number_reflns 2544 _refine_ls_number_restraints 1 _refine_ls_restrained_S_all 1.064 _refine_ls_R_factor_all 0.0383 _refine_ls_R_factor_gt 0.0344 _refine_ls_shift/su_max 0.000 _refine_ls_shift/su_mean 0.000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'w = 1/[\s^2^(Fo^2^)+(0.0337P)^2^+13.5461P] where P = (Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_gt 0.0776 _refine_ls_wR_factor_ref 0.0803 _reflns_number_gt 2429 _reflns_number_total 2544 _reflns_threshold_expression I>2\s(I) _cod_data_source_file wm6030.cif _cod_database_code 2204579 _amcsd_formula_title Pb2[B5O9]Br loop_ _space_group_symop_operation_xyz 'x, y, z' '-x, -y, z' '-x+1/2, y+1/2, z+1/2' 'x+1/2, -y+1/2, z+1/2' 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_type_symbol Pb1 0.25762(6) 0.04280(6) 0.00433(9) 0.01489(12) Uani d . 1 Pb Pb2 0.02631(6) 0.23505(5) -0.66205(14) 0.01614(13) Uani d . 1 Pb Br1 0.0000 0.0000 -0.9081(5) 0.0289(6) Uani d S 1 Br Br2 0.0000 0.5000 -0.6476(6) 0.0259(5) Uani d S 1 Br O1 0.2376(8) 0.3135(8) -0.5784(14) 0.0030(16) Uiso d . 1 O O2 0.2084(8) 0.4248(8) -0.173(2) 0.0108(16) Uiso d . 1 O O3 0.2717(8) 0.2256(9) -0.2448(16) 0.0079(19) Uiso d . 1 O O4 0.0686(11) 0.2753(11) -0.2398(19) 0.017(2) Uiso d . 1 O O5 0.2790(9) 0.4487(11) -0.835(2) 0.015(2) Uiso d . 1 O O6 0.3827(9) 0.2616(9) -0.8357(17) 0.0092(18) Uiso d . 1 O O7 0.1785(8) 0.2698(9) -0.9231(15) 0.0046(16) Uiso d . 1 O O8 0.4168(8) 0.2110(9) -0.4921(18) 0.0090(16) Uiso d . 1 O O9 0.2339(9) 0.1103(10) -0.5577(16) 0.0106(19) Uiso d . 1 O B1 0.2706(13) 0.3217(14) -0.795(2) 0.008(3) Uiso d . 1 B B2 0.1803(13) 0.3009(14) -0.146(3) 0.012(3) Uiso d . 1 B B3 0.2864(14) 0.2180(15) -0.460(2) 0.010(3) Uiso d . 1 B B4 0.4556(13) 0.2354(16) -0.683(3) 0.011(3) Uiso d . 1 B B5 0.2513(15) 0.4950(14) -0.019(3) 0.009(3) Uiso d . 1 B 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 Pb1 0.0172(2) 0.0170(2) 0.0105(2) 0.0011(2) 0.0010(2) 0.0004(3) Pb2 0.0187(2) 0.0179(2) 0.0118(3) -0.0013(2) 0.0034(3) 0.0000(3) Br1 0.0202(12) 0.0154(10) 0.0511(19) -0.0011(10) 0.000 0.000 Br2 0.0188(11) 0.0179(10) 0.0411(16) 0.0002(8) 0.000 0.000 loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source B B 0.0013 0.0007 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Pb Pb -3.3944 10.1111 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Br Br -0.2901 2.4595 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle_site_symmetry_1 _geom_angle_site_symmetry_3 _geom_angle _geom_angle_publ_flag O5 Pb1 O2 3_545 3_545 122.1(4) ? O5 Pb1 O3 3_545 . 79.0(4) ? O2 Pb1 O3 3_545 . 157.0(3) ? O5 Pb1 O1 3_545 3_545 53.3(3) ? O2 Pb1 O1 3_545 3_545 68.9(3) ? O3 Pb1 O1 . 3_545 130.4(3) ? O5 Pb1 O7 3_545 1_556 119.8(3) ? O2 Pb1 O7 3_545 1_556 114.0(3) ? O3 Pb1 O7 . 1_556 52.4(3) ? O1 Pb1 O7 3_545 1_556 162.2(3) ? O5 Pb1 O9 3_545 1_556 161.5(3) ? O2 Pb1 O9 3_545 1_556 49.8(3) ? O3 Pb1 O9 . 1_556 112.8(3) ? O1 Pb1 O9 3_545 1_556 116.8(3) ? O7 Pb1 O9 1_556 1_556 64.2(3) ? O5 Pb1 Br2 3_545 3_545 78.0(3) ? O2 Pb1 Br2 3_545 3_545 92.5(2) ? O3 Pb1 Br2 . 3_545 82.6(2) ? O1 Pb1 Br2 3_545 3_545 75.76(19) ? O7 Pb1 Br2 1_556 3_545 120.7(2) ? O9 Pb1 Br2 1_556 3_545 116.5(2) ? O5 Pb1 Br1 3_545 1_556 86.2(3) ? O2 Pb1 Br1 3_545 1_556 84.7(2) ? O3 Pb1 Br1 . 1_556 107.5(2) ? O1 Pb1 Br1 3_545 1_556 84.26(19) ? O7 Pb1 Br1 1_556 1_556 78.6(2) ? O9 Pb1 Br1 1_556 1_556 76.9(2) ? Br2 Pb1 Br1 3_545 1_556 159.43(5) ? O5 Pb1 O6 3_545 1_556 137.1(3) ? O2 Pb1 O6 3_545 1_556 94.7(3) ? O3 Pb1 O6 . 1_556 62.3(3) ? O1 Pb1 O6 3_545 1_556 149.1(3) ? O7 Pb1 O6 1_556 1_556 48.3(3) ? O9 Pb1 O6 1_556 1_556 60.3(3) ? Br2 Pb1 O6 3_545 1_556 79.1(2) ? Br1 Pb1 O6 1_556 1_556 121.4(2) ? O5 Pb1 B5 3_545 3_545 142.3(4) ? O2 Pb1 B5 3_545 3_545 25.1(4) ? O3 Pb1 B5 . 3_545 137.8(4) ? O1 Pb1 B5 3_545 3_545 91.6(4) ? O7 Pb1 B5 1_556 3_545 89.1(4) ? O9 Pb1 B5 1_556 3_545 25.3(4) ? Br2 Pb1 B5 3_545 3_545 109.1(3) ? Br1 Pb1 B5 1_556 3_545 75.9(3) ? O6 Pb1 B5 1_556 3_545 79.8(4) ? O7 Pb2 O8 . 4_454 74.3(3) ? O7 Pb2 O1 . . 55.9(3) ? O8 Pb2 O1 4_454 . 122.7(3) ? O7 Pb2 O6 . 4_455 167.2(3) ? O8 Pb2 O6 4_454 4_455 111.1(3) ? O1 Pb2 O6 . 4_455 113.2(3) ? O7 Pb2 O4 . . 121.4(3) ? O8 Pb2 O4 4_454 . 149.2(3) ? O1 Pb2 O4 . . 65.6(3) ? O6 Pb2 O4 4_455 . 48.3(3) ? O7 Pb2 O9 . . 69.8(3) ? O8 Pb2 O9 4_454 . 136.7(3) ? O1 Pb2 O9 . . 49.9(3) ? O6 Pb2 O9 4_455 . 109.2(3) ? O4 Pb2 O9 . . 73.0(4) ? O7 Pb2 O3 . 4_454 122.7(3) ? O8 Pb2 O3 4_454 4_454 48.5(3) ? O1 Pb2 O3 . 4_454 151.4(3) ? O6 Pb2 O3 4_455 4_454 62.9(3) ? O4 Pb2 O3 . 4_454 108.5(3) ? O9 Pb2 O3 . 4_454 158.0(3) ? O7 Pb2 Br2 . . 86.1(2) ? O8 Pb2 Br2 4_454 . 74.8(2) ? O1 Pb2 Br2 . . 75.3(2) ? O6 Pb2 Br2 4_455 . 84.3(2) ? O4 Pb2 Br2 . . 79.9(3) ? O9 Pb2 Br2 . . 124.9(2) ? O3 Pb2 Br2 4_454 . 76.1(2) ? O7 Pb2 B1 . . 27.8(4) ? O8 Pb2 B1 4_454 . 97.5(4) ? O1 Pb2 B1 . . 28.2(4) ? O6 Pb2 B1 4_455 . 140.5(4) ? O4 Pb2 B1 . . 93.8(4) ? O9 Pb2 B1 . . 58.2(4) ? O3 Pb2 B1 4_454 . 141.4(4) ? Br2 Pb2 B1 . . 77.3(3) ? O7 Pb2 Br1 . . 81.6(2) ? O8 Pb2 Br1 4_454 . 74.4(2) ? O1 Pb2 Br1 . . 118.9(2) ? O6 Pb2 Br1 4_455 . 110.9(2) ? O4 Pb2 Br1 . . 130.6(3) ? O9 Pb2 Br1 . . 76.9(2) ? O3 Pb2 Br1 4_454 . 86.8(2) ? Br2 Pb2 Br1 . . 148.95(10) ? B1 Pb2 Br1 . . 102.6(3) ? Pb1 Br1 Pb1 2_554 1_554 158.42(14) ? Pb1 Br1 Pb2 2_554 . 109.01(4) ? Pb1 Br1 Pb2 1_554 . 82.24(3) ? Pb1 Br1 Pb2 2_554 2 82.24(3) ? Pb1 Br1 Pb2 1_554 2 109.01(4) ? Pb2 Br1 Pb2 . 2 118.74(11) ? Pb1 Br2 Pb1 3_554 4_454 141.35(15) ? Pb1 Br2 Pb2 3_554 . 94.66(3) ? Pb1 Br2 Pb2 4_454 . 86.52(3) ? Pb1 Br2 Pb2 3_554 2_565 86.52(3) ? Pb1 Br2 Pb2 4_454 2_565 94.66(3) ? Pb2 Br2 Pb2 . 2_565 176.46(16) ? B3 O1 B1 . . 117.5(11) ? B3 O1 Pb2 . . 102.0(8) ? B1 O1 Pb2 . . 93.4(7) ? B3 O1 Pb1 . 3_554 128.5(8) ? B1 O1 Pb1 . 3_554 97.2(8) ? Pb2 O1 Pb1 . 3_554 113.1(3) ? B5 O2 B2 . . 123.9(14) ? B5 O2 Pb1 . 3_554 103.8(9) ? B2 O2 Pb1 . 3_554 130.6(11) ? B3 O3 B2 . . 122.8(13) ? B3 O3 Pb1 . . 124.4(10) ? B2 O3 Pb1 . . 98.6(9) ? B3 O3 Pb2 . 4 94.1(8) ? B2 O3 Pb2 . 4 121.1(8) ? Pb1 O3 Pb2 . 4 93.9(3) ? B4 O4 B2 4_455 . 138.5(15) ? B4 O4 Pb2 4_455 . 95.0(11) ? B2 O4 Pb2 . . 126.4(10) ? B5 O5 B1 1_554 . 121.5(13) ? B5 O5 Pb1 1_554 3_554 125.4(10) ? B1 O5 Pb1 . 3_554 105.2(9) ? B4 O6 B1 . . 121.0(13) ? B4 O6 Pb2 . 4_554 102.2(9) ? B1 O6 Pb2 . 4_554 131.6(9) ? B4 O6 Pb1 . 1_554 111.3(10) ? B1 O6 Pb1 . 1_554 91.9(8) ? Pb2 O6 Pb1 4_554 1_554 91.7(3) ? B1 O7 B2 . 1_554 116.3(11) ? B1 O7 Pb2 . . 100.6(8) ? B2 O7 Pb2 1_554 . 135.8(8) ? Pb1 Br2 Pb2 3_554 . 94.66(3) ? Pb1 Br2 Pb2 4_454 . 86.52(3) ? Pb1 Br2 Pb2 3_554 2_565 86.52(3) ? Pb1 Br2 Pb2 4_454 2_565 94.66(3) ? Pb2 Br2 Pb2 . 2_565 176.46(16) ? B3 O1 B1 . . 117.5(11) ? B3 O1 Pb2 . . 102.0(8) ? B1 O1 Pb2 . . 93.4(7) ? B3 O1 Pb1 . 3_554 128.5(8) ? B1 O1 Pb1 . 3_554 97.2(8) ? Pb2 O1 Pb1 . 3_554 113.1(3) ? B5 O2 B2 . . 123.9(14) ? B5 O2 Pb1 . 3_554 103.8(9) ? B2 O2 Pb1 . 3_554 130.6(11) ? B3 O3 B2 . . 122.8(13) ? B3 O3 Pb1 . . 124.4(10) ? B2 O3 Pb1 . . 98.6(9) ? B3 O3 Pb2 . 4 94.1(8) ? B2 O3 Pb2 . 4 121.1(8) ? Pb1 O3 Pb2 . 4 93.9(3) ? B4 O4 B2 4_455 . 138.5(15) ? B4 O4 Pb2 4_455 . 95.0(11) ? B2 O4 Pb2 . . 126.4(10) ? B5 O5 B1 1_554 . 121.5(13) ? B5 O5 Pb1 1_554 3_554 125.4(10) ? B1 O5 Pb1 . 3_554 105.2(9) ? B4 O6 B1 . . 121.0(13) ? B4 O6 Pb2 . 4_554 102.2(9) ? B1 O6 Pb2 . 4_554 131.6(9) ? B4 O6 Pb1 . 1_554 111.3(10) ? B1 O6 Pb1 . 1_554 91.9(8) ? Pb2 O6 Pb1 4_554 1_554 91.7(3) ? B1 O7 B2 . 1_554 116.3(11) ? B1 O7 Pb2 . . 100.6(8) ? B2 O7 Pb2 1_554 . 135.8(8) ? B1 O7 Pb1 . 1_554 103.8(8) ? B2 O7 Pb1 1_554 1_554 93.0(7) ? Pb2 O7 Pb1 . 1_554 101.3(3) ? B4 O8 B3 . . 116.3(12) ? B4 O8 Pb2 . 4 124.1(9) ? B3 O8 Pb2 . 4 110.8(8) ? B5 O9 B3 3_544 . 131.8(13) ? B5 O9 Pb2 3_544 . 129.5(10) ? B3 O9 Pb2 . . 91.4(8) ? B5 O9 Pb1 3_544 1_554 85.0(9) ? B3 O9 Pb1 . 1_554 125.5(8) ? Pb2 O9 Pb1 . 1_554 88.7(3) ? O1 B1 O7 . . 109.5(11) y O1 B1 O5 . . 104.2(12) y O7 B1 O5 . . 110.3(12) y O1 B1 O6 . . 111.4(12) y O7 B1 O6 . . 109.6(12) y O5 B1 O6 . . 111.7(11) y O1 B1 Pb2 . . 58.3(6) ? O7 B1 Pb2 . . 51.6(6) ? O5 B1 Pb2 . . 115.0(9) ? O6 B1 Pb2 . . 133.3(9) ? O1 B1 Pb1 . 3_554 55.9(6) ? O7 B1 Pb1 . 3_554 126.2(9) ? O5 B1 Pb1 . 3_554 48.5(7) ? O6 B1 Pb1 . 3_554 124.1(9) ? Pb2 B1 Pb1 . 3_554 89.4(4) ? O4 B2 O2 . . 109.9(13) y O4 B2 O7 . 1_556 110.4(12) y O2 B2 O7 . 1_556 110.4(14) y O4 B2 O3 . . 108.8(13) y O2 B2 O3 . . 110.5(12) y O7 B2 O3 1_556 . 106.7(12) y O4 B2 Pb1 . . 100.7(9) ? O2 B2 Pb1 . . 149.2(10) ? O7 B2 Pb1 1_556 . 59.5(6) ? O3 B2 Pb1 . . 54.2(7) ? O3 B3 O1 . . 115.8(13) y O3 B3 O8 . . 105.0(12) y O1 B3 O8 . . 110.3(12) y O3 B3 O9 . . 114.8(13) y O1 B3 O9 . . 103.7(11) y O8 B3 O9 . . 107.0(11) y O3 B3 Pb2 . . 106.7(9) ? O1 B3 Pb2 . . 52.3(6) ? O8 B3 Pb2 . . 148.2(10) ? O9 B3 Pb2 . . 61.0(7) ? O6 B4 O8 . . 121.9(13) y O6 B4 O4 . 4_554 114.5(17) y O8 B4 O4 . 4_554 123.4(16) y O6 B4 Pb2 . 4_554 54.1(9) ? O8 B4 Pb2 . 4_554 172.2(11) ? O4 B4 Pb2 4_554 4_554 60.4(10) ? O5 B5 O9 1_556 3 121.1(15) y O5 B5 O2 1_556 . 120.3(14) y O9 B5 O2 3 . 118.7(15) y O5 B5 Pb1 1_556 3_554 162.0(11) ? O9 B5 Pb1 3 3_554 69.7(9) ? O2 B5 Pb1 . 3_554 51.1(8) ? 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 Pb1 O5 3_545 2.497(13) y Pb1 O2 3_545 2.534(12) y Pb1 O3 . 2.659(11) y Pb1 O1 3_545 2.686(9) y Pb1 O7 1_556 2.798(10) y Pb1 O9 1_556 2.975(11) y Pb1 Br2 3_545 2.9977(16) y Pb1 Br1 1_556 3.0554(10) y Pb1 O6 1_556 3.076(11) y Pb1 B5 3_545 3.160(19) ? Pb2 O7 . 2.475(10) y Pb2 O8 4_454 2.571(11) y Pb2 O1 . 2.647(9) y Pb2 O6 4_455 2.695(11) y Pb2 O4 . 2.838(13) y Pb2 O9 . 2.864(11) y Pb2 O3 4_454 3.010(10) y Pb2 Br2 . 3.0559(8) y Pb2 B1 . 3.104(15) ? Pb2 Br1 . 3.153(2) y Br1 Pb1 2_554 3.0554(10) ? Br1 Pb1 1_554 3.0554(10) ? Br1 Pb2 2 3.1532(19) ? Br2 Pb1 3_554 2.9977(16) ? Br2 Pb1 4_454 2.9977(16) ? Br2 Pb2 2_565 3.0559(8) ? B1 O1 . 1.470(18) y B1 O5 . 1.48(2) y B1 O6 . 1.485(18) y B1 O7 . 1.473(18) y O1 Pb1 3_554 2.686(9) ? B2 O2 . 1.468(19) y B2 O3 . 1.504(19) y B2 O4 . 1.450(19) y B2 O7 1_556 1.50(2) y O2 Pb1 3_554 2.534(12) ? B3 O1 . 1.453(19) y B3 O3 . 1.417(19) y B3 O8 . 1.516(19) y B3 O9 . 1.52(2) y B4 O4 4_554 1.358(19) y B4 O6 . 1.34(2) y B4 O8 . 1.35(2) y B5 O2 . 1.38(2) y B5 O5 1_556 1.36(2) y B5 O9 3 1.358(19) y O3 Pb2 4 3.010(10) ? O4 B4 4_455 1.358(19) ? O5 B5 1_554 1.36(2) ? O5 Pb1 3_554 2.497(13) ? O6 Pb2 4_554 2.695(11) ? O6 Pb1 1_554 3.076(11) ? O7 B2 1_554 1.50(2) ? O7 Pb1 1_554 2.798(10) ? O8 Pb2 4 2.571(11) ? O9 B5 3_544 1.358(19) ? O9 Pb1 1_554 2.975(11) ? B1 Pb1 3_554 3.220(16) ? B4 Pb2 4_554 3.25(2) ? B5 Pb1 3_554 3.160(19) ?