#------------------------------------------------------------------------------ #$Date: 2020-10-06 11:36:32 +0300 (Tue, 06 Oct 2020) $ #$Revision: 257510 $ #$URL: file:///home/coder/svn-repositories/cod/cif/7/70/53/7705346.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_7705346 loop_ _publ_author_name 'Zhao, Dan' 'Li, Ya-Nan' 'Fan, Yan-Ping' 'Liu, Bao-Zhong' 'Zhang, Shi-Rui' 'Zhang, Rui-Juan' _publ_section_title ; Crystal structure, theoretical studies and luminescent properties of a new borate Na3GdB8O15 with one-dimensional broad-banded anionic framework. ; _journal_issue 37 _journal_name_full 'Dalton transactions (Cambridge, England : 2003)' _journal_page_first 13167 _journal_page_last 13175 _journal_paper_doi 10.1039/d0dt02586k _journal_volume 49 _journal_year 2020 _chemical_formula_sum 'B8 Gd Na3 O15' _chemical_formula_weight 552.70 _space_group_crystal_system triclinic _space_group_IT_number 2 _space_group_name_Hall '-P 1' _space_group_name_H-M_alt 'P -1' _audit_creation_method SHELXL-2016/6 _audit_update_record ; 2020-07-04 deposited with the CCDC. 2020-09-03 downloaded from the CCDC. ; _cell_angle_alpha 90.5190(10) _cell_angle_beta 100.6450(10) _cell_angle_gamma 113.5230(10) _cell_formula_units_Z 2 _cell_length_a 6.2746(4) _cell_length_b 7.5373(5) _cell_length_c 13.4783(8) _cell_measurement_reflns_used 359 _cell_measurement_temperature 296(2) _cell_measurement_theta_max 24.67 _cell_measurement_theta_min 2.06 _cell_volume 571.98(6) _computing_cell_refinement 'SAINT (Bruker, 2016)' _computing_data_collection 'SMART Apex2 (Bruker, 2016)' _computing_data_reduction 'SAINT (Bruker, 2016)' _computing_molecular_graphics 'SHELXL (Sheldrick, 2016)' _computing_publication_material 'SHELXTL (Sheldrick, 206)' _computing_structure_refinement 'SHELXL-2014/7 (Sheldrick, 2016)' _computing_structure_solution 'SHELXS (Sheldrick, 2016)' _diffrn_ambient_temperature 296(2) _diffrn_detector_area_resol_mean 83.33 _diffrn_measured_fraction_theta_full 0.998 _diffrn_measured_fraction_theta_max 0.990 _diffrn_measurement_device_type 'Bruker Smart Apex2 CCD area detector' _diffrn_measurement_method '\w scans' _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength 0.71073 _diffrn_reflns_av_R_equivalents 0.0228 _diffrn_reflns_av_unetI/netI 0.0293 _diffrn_reflns_Laue_measured_fraction_full 0.998 _diffrn_reflns_Laue_measured_fraction_max 0.990 _diffrn_reflns_limit_h_max 8 _diffrn_reflns_limit_h_min -8 _diffrn_reflns_limit_k_max 10 _diffrn_reflns_limit_k_min -9 _diffrn_reflns_limit_l_max 17 _diffrn_reflns_limit_l_min -17 _diffrn_reflns_number 7280 _diffrn_reflns_point_group_measured_fraction_full 0.998 _diffrn_reflns_point_group_measured_fraction_max 0.990 _diffrn_reflns_theta_full 25.242 _diffrn_reflns_theta_max 28.285 _diffrn_reflns_theta_min 2.960 _diffrn_source 'fine-focus sealed tube' _exptl_absorpt_coefficient_mu 6.010 _exptl_absorpt_correction_T_max 0.919 _exptl_absorpt_correction_T_min 0.254 _exptl_absorpt_correction_type multi-scan _exptl_crystal_colour colorless _exptl_crystal_density_diffrn 3.209 _exptl_crystal_description prism _exptl_crystal_F_000 514 _exptl_crystal_size_max 0.200 _exptl_crystal_size_mid 0.050 _exptl_crystal_size_min 0.050 _refine_diff_density_max 1.206 _refine_diff_density_min -0.934 _refine_diff_density_rms 0.134 _refine_ls_extinction_coef 0.0059(4) _refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^ _refine_ls_extinction_method 'SHELXL-2016/6 (Sheldrick 2016)' _refine_ls_goodness_of_fit_ref 1.061 _refine_ls_hydrogen_treatment undef _refine_ls_matrix_type full _refine_ls_number_parameters 245 _refine_ls_number_reflns 2807 _refine_ls_number_restraints 0 _refine_ls_restrained_S_all 1.061 _refine_ls_R_factor_all 0.0210 _refine_ls_R_factor_gt 0.0190 _refine_ls_shift/su_max 0.002 _refine_ls_shift/su_mean 0.000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'w=1/[\s^2^(Fo^2^)+(0.0172P)^2^+0.7729P] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_gt 0.0423 _refine_ls_wR_factor_ref 0.0431 _reflns_Friedel_coverage 0.000 _reflns_number_gt 2633 _reflns_number_total 2807 _reflns_threshold_expression 'I > 2\s(I)' _cod_data_source_file d0dt02586k2.cif _cod_data_source_block a _cod_depositor_comments 'Adding full bibliography for 7705346.cif.' _cod_database_code 7705346 _publcif_datablock.id {f6361865-f3f6-4218-9c14-cd7b0ca0052a} _shelx_shelxl_version_number 2016/6 _shelx_space_group_comment ; The symmetry employed for this shelxl refinement is uniquely defined by the following loop, which should always be used as a source of symmetry information in preference to the above space-group names. They are only intended as comments. ; _shelx_estimated_absorpt_t_min 0.379 _shelx_estimated_absorpt_t_max 0.753 _shelx_res_file ; TITL a in P-1 D:\aaaaaaaaaaaaaa\Na3LnB8O15\Na3GdB8O15_mfx166_1\a.res created by SHELXL-2016/6 at 19:33:06 on 03-May-2018 CELL 0.71073 6.2746 7.5373 13.4783 90.519 100.645 113.523 ZERR 2.0000 0.0004 0.0005 0.0008 0.001 0.001 0.001 LATT 1 SFAC B GD NA O UNIT 16 2 6 30 MERG 2 FMAP 2 GRID PLAN 20 TEMP 23 SIZE 0.2 0.05 0.05 BOND L.S. 20 ACTA WGHT 0.017200 0.772900 EXTI 0.005861 FVAR 0.17482 NA1 3 0.634047 0.386359 0.228527 11.00000 0.01946 0.01538 = 0.03729 0.01016 0.01409 0.00633 NA2 3 0.092036 0.312044 0.108279 11.00000 0.02666 0.01959 = 0.01323 -0.00474 0.00076 0.00757 NA3 3 0.748728 0.262365 0.522790 11.00000 0.01582 0.02498 = 0.02196 -0.00674 -0.00502 0.01183 GD1 2 0.918934 0.248985 0.832311 11.00000 0.00525 0.00582 = 0.00440 0.00051 0.00091 0.00185 B1 1 0.380316 0.635771 -0.001150 11.00000 0.00972 0.00979 = 0.00708 0.00191 0.00103 0.00598 B2 1 0.727611 0.941784 0.013435 11.00000 0.00760 0.01143 = 0.00777 0.00088 0.00237 0.00528 B3 1 0.611561 0.797083 0.172692 11.00000 0.00621 0.00632 = 0.00573 -0.00191 0.00076 0.00139 B4 1 0.628042 1.016799 0.313889 11.00000 0.00916 0.00709 = 0.00812 0.00283 0.00452 0.00210 B5 1 0.894687 0.847764 0.340965 11.00000 0.00788 0.00740 = 0.00499 0.00003 0.00056 0.00433 B6 1 0.796008 0.717437 0.511653 11.00000 0.00791 0.00773 = 0.00775 0.00099 0.00024 0.00340 B7 1 0.684828 0.870157 0.643005 11.00000 0.00615 0.00695 = 0.00598 0.00033 0.00090 0.00319 B8 1 0.834145 0.609080 0.680191 11.00000 0.00919 0.00717 = 0.00910 0.00252 0.00348 0.00274 O1 4 0.837732 0.587355 0.576988 11.00000 0.01624 0.01091 = 0.00673 0.00151 0.00342 0.00859 O2 4 0.557439 1.148503 0.352249 11.00000 0.00505 0.00999 = 0.01170 -0.00010 0.00247 0.00399 O3 4 0.830366 1.007510 0.361970 11.00000 0.00664 0.00999 = 0.00757 -0.00161 -0.00049 0.00490 O4 4 0.782630 0.928990 0.116837 11.00000 0.00843 0.01166 = 0.00686 0.00163 0.00206 0.00138 O5 4 0.548763 0.777511 -0.045647 11.00000 0.01311 0.01187 = 0.00816 0.00011 0.00174 0.00026 O6 4 0.874546 0.721495 0.424085 11.00000 0.01274 0.01068 = 0.00533 0.00226 0.00248 0.00713 O7 4 0.744323 0.720370 0.246797 11.00000 0.00721 0.00745 = 0.00502 -0.00035 -0.00054 0.00396 O8 4 0.196837 0.493997 -0.059685 11.00000 0.01130 0.01214 = 0.01087 -0.00303 0.00039 -0.00008 O9 4 1.144220 0.926025 0.325233 11.00000 0.00503 0.00678 = 0.01095 -0.00082 0.00225 0.00282 O10 4 0.738411 0.732663 0.710327 11.00000 0.01153 0.01039 = 0.00661 0.00161 0.00269 0.00737 O11 4 0.674277 0.820361 0.536011 11.00000 0.00848 0.01148 = 0.00541 0.00050 0.00115 0.00654 O12 4 0.408278 0.644704 0.104591 11.00000 0.00643 0.00826 = 0.00758 0.00008 0.00052 0.00061 O13 4 0.924146 0.512608 0.745827 11.00000 0.01564 0.01324 = 0.00851 0.00476 0.00476 0.00952 O14 4 0.501065 0.904550 0.224639 11.00000 0.00666 0.01244 = 0.00838 -0.00323 -0.00062 0.00539 O15 4 0.840399 1.101734 -0.027828 11.00000 0.01103 0.01210 = 0.01107 0.00490 0.00364 0.00312 HKLF 4 REM a in P-1 REM R1 = 0.0190 for 2633 Fo > 4sig(Fo) and 0.0210 for all 2807 data REM 245 parameters refined using 0 restraints END WGHT 0.0172 0.7723 REM Highest difference peak 1.206, deepest hole -0.934, 1-sigma level 0.134 Q1 1 0.6882 0.4231 0.2920 11.00000 0.05 1.21 Q2 1 0.8090 0.2171 0.8920 11.00000 0.05 0.66 Q3 1 0.9064 1.1463 -0.1005 11.00000 0.05 0.66 Q4 1 0.7509 0.1419 0.8259 11.00000 0.05 0.65 Q5 1 0.7765 0.2938 0.8289 11.00000 0.05 0.64 Q6 1 1.0555 0.1857 0.8349 11.00000 0.05 0.62 Q7 1 1.0796 0.3870 0.8352 11.00000 0.05 0.61 Q8 1 0.9509 0.3541 0.8979 11.00000 0.05 0.61 Q9 1 0.9065 0.1376 0.8292 11.00000 0.05 0.60 Q10 1 1.1142 0.8590 0.2404 11.00000 0.05 0.59 Q11 1 0.9128 0.3588 0.8400 11.00000 0.05 0.59 Q12 1 0.9116 0.3389 0.7594 11.00000 0.05 0.56 Q13 1 0.7839 0.7682 0.2919 11.00000 0.05 0.54 Q14 1 1.0689 0.2743 0.7872 11.00000 0.05 0.54 Q15 1 1.2230 1.0020 0.3417 11.00000 0.05 0.52 Q16 1 0.7827 0.5992 0.5294 11.00000 0.05 0.48 Q17 1 0.3816 0.8381 0.2009 11.00000 0.05 0.46 Q18 1 0.9521 0.6319 0.5772 11.00000 0.05 0.45 Q19 1 0.6232 0.8444 0.4959 11.00000 0.05 0.45 Q20 1 0.7567 0.1981 0.7542 11.00000 0.05 0.45 ; _shelx_res_checksum 25492 _publcif_funding_html ; ; loop_ _space_group_symop_operation_xyz 'x, y, z' '-x, -y, -z' loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_adp_type _atom_site_occupancy _atom_site_site_symmetry_order _atom_site_calc_flag _atom_site_refinement_flags_posn _atom_site_refinement_flags_adp _atom_site_refinement_flags_occupancy _atom_site_disorder_assembly _atom_site_disorder_group Na1 Na 0.6340(3) 0.3864(2) 0.22853(12) 0.0231(3) Uani 1 1 d . . . . . Na2 Na 0.0920(3) 0.3120(2) 0.10828(10) 0.0209(3) Uani 1 1 d . . . . . Na3 Na 0.7487(2) 0.2624(2) 0.52279(11) 0.0211(3) Uani 1 1 d . . . . . Gd1 Gd 0.91893(2) 0.24898(2) 0.83231(2) 0.00530(6) Uani 1 1 d . . . . . B1 B 0.3803(6) 0.6358(5) -0.0011(3) 0.0083(6) Uani 1 1 d . . . . . B2 B 0.7276(6) 0.9418(5) 0.0134(3) 0.0084(6) Uani 1 1 d . . . . . B3 B 0.6116(6) 0.7971(5) 0.1727(2) 0.0065(6) Uani 1 1 d . . . . . B4 B 0.6280(6) 1.0168(5) 0.3139(3) 0.0081(6) Uani 1 1 d . . . . . B5 B 0.8947(6) 0.8478(5) 0.3410(2) 0.0065(6) Uani 1 1 d . . . . . B6 B 0.7960(6) 0.7174(5) 0.5117(3) 0.0079(6) Uani 1 1 d . . . . . B7 B 0.6848(6) 0.8702(5) 0.6430(2) 0.0062(6) Uani 1 1 d . . . . . B8 B 0.8341(6) 0.6091(5) 0.6802(3) 0.0084(6) Uani 1 1 d . . . . . O1 O 0.8377(4) 0.5874(3) 0.57699(16) 0.0101(4) Uani 1 1 d . . . . . O2 O 0.5574(4) 1.1485(3) 0.35225(16) 0.0085(4) Uani 1 1 d . . . . . O3 O 0.8304(4) 1.0075(3) 0.36197(15) 0.0079(4) Uani 1 1 d . . . . . O4 O 0.7826(4) 0.9290(3) 0.11684(16) 0.0098(4) Uani 1 1 d . . . . . O5 O 0.5488(4) 0.7775(3) -0.04565(16) 0.0127(5) Uani 1 1 d . . . . . O6 O 0.8745(4) 0.7215(3) 0.42408(15) 0.0087(4) Uani 1 1 d . . . . . O7 O 0.7443(4) 0.7204(3) 0.24680(15) 0.0065(4) Uani 1 1 d . . . . . O8 O 0.1968(4) 0.4940(3) -0.05969(17) 0.0133(5) Uani 1 1 d . . . . . O9 O 1.1442(4) 0.9260(3) 0.32523(16) 0.0074(4) Uani 1 1 d . . . . . O10 O 0.7384(4) 0.7327(3) 0.71033(15) 0.0084(4) Uani 1 1 d . . . . . O11 O 0.6743(4) 0.8204(3) 0.53601(15) 0.0077(4) Uani 1 1 d . . . . . O12 O 0.4083(4) 0.6447(3) 0.10459(15) 0.0083(4) Uani 1 1 d . . . . . O13 O 0.9241(4) 0.5126(3) 0.74583(16) 0.0109(4) Uani 1 1 d . . . . . O14 O 0.5011(4) 0.9045(3) 0.22464(16) 0.0090(4) Uani 1 1 d . . . . . O15 O 0.8404(4) 1.1017(3) -0.02783(16) 0.0117(4) Uani 1 1 d . . . . . loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_23 _atom_site_aniso_U_13 _atom_site_aniso_U_12 Na1 0.0195(7) 0.0154(7) 0.0373(9) 0.0102(6) 0.0141(6) 0.0063(6) Na2 0.0267(8) 0.0196(7) 0.0132(7) -0.0047(5) 0.0008(6) 0.0076(6) Na3 0.0158(7) 0.0250(8) 0.0220(8) -0.0067(6) -0.0050(6) 0.0118(6) Gd1 0.00525(8) 0.00582(8) 0.00440(8) 0.00051(5) 0.00091(5) 0.00185(5) B1 0.0097(16) 0.0098(16) 0.0071(15) 0.0019(12) 0.0010(12) 0.0060(13) B2 0.0076(15) 0.0114(16) 0.0078(16) 0.0009(12) 0.0024(12) 0.0053(13) B3 0.0062(15) 0.0063(15) 0.0057(15) -0.0019(12) 0.0008(12) 0.0014(12) B4 0.0092(16) 0.0071(15) 0.0081(15) 0.0028(12) 0.0045(12) 0.0021(13) B5 0.0079(15) 0.0074(15) 0.0050(15) 0.0000(12) 0.0006(12) 0.0043(12) B6 0.0079(16) 0.0077(15) 0.0078(15) 0.0010(12) 0.0002(12) 0.0034(13) B7 0.0062(15) 0.0070(15) 0.0060(15) 0.0003(11) 0.0009(12) 0.0032(12) B8 0.0092(16) 0.0072(15) 0.0091(16) 0.0025(12) 0.0035(13) 0.0027(13) O1 0.0162(11) 0.0109(10) 0.0067(10) 0.0015(8) 0.0034(8) 0.0086(9) O2 0.0050(10) 0.0100(10) 0.0117(11) -0.0001(8) 0.0025(8) 0.0040(8) O3 0.0066(10) 0.0100(10) 0.0076(10) -0.0016(8) -0.0005(8) 0.0049(8) O4 0.0084(10) 0.0117(10) 0.0069(10) 0.0016(8) 0.0021(8) 0.0014(8) O5 0.0131(11) 0.0119(11) 0.0082(11) 0.0001(8) 0.0017(9) 0.0003(9) O6 0.0127(11) 0.0107(10) 0.0053(10) 0.0023(8) 0.0025(8) 0.0071(9) O7 0.0072(10) 0.0074(10) 0.0050(10) -0.0004(8) -0.0005(8) 0.0040(8) O8 0.0113(11) 0.0121(11) 0.0109(11) -0.0030(8) 0.0004(9) -0.0001(9) O9 0.0050(10) 0.0068(10) 0.0110(10) -0.0008(8) 0.0022(8) 0.0028(8) O10 0.0115(11) 0.0104(10) 0.0066(10) 0.0016(8) 0.0027(8) 0.0074(9) O11 0.0085(10) 0.0115(10) 0.0054(10) 0.0005(8) 0.0011(8) 0.0065(8) O12 0.0064(10) 0.0083(10) 0.0076(10) 0.0001(8) 0.0005(8) 0.0006(8) O13 0.0156(11) 0.0132(11) 0.0085(10) 0.0048(8) 0.0048(9) 0.0095(9) O14 0.0067(10) 0.0124(11) 0.0084(10) -0.0032(8) -0.0006(8) 0.0054(9) O15 0.0110(11) 0.0121(11) 0.0111(11) 0.0049(9) 0.0036(9) 0.0031(9) 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' Gd Gd -0.1653 3.9035 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Na Na 0.0362 0.0249 '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' loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle _geom_angle_site_symmetry_1 _geom_angle_site_symmetry_3 _geom_angle_publ_flag O8 B1 O5 119.5(3) . . ? O8 B1 O12 120.8(3) . . ? O5 B1 O12 119.7(3) . . ? O15 B2 O4 121.2(3) . . ? O15 B2 O5 121.3(3) . . ? O4 B2 O5 117.4(3) . . ? O7 B3 O12 113.3(2) . . ? O7 B3 O4 106.6(2) . . ? O12 B3 O4 112.1(2) . . ? O7 B3 O14 110.4(2) . . ? O12 B3 O14 104.0(2) . . ? O4 B3 O14 110.5(2) . . ? O3 B4 O2 118.8(3) . . ? O3 B4 O14 120.8(3) . . ? O2 B4 O14 120.3(3) . . ? O3 B5 O6 111.7(2) . . ? O3 B5 O9 109.8(2) . . ? O6 B5 O9 108.9(2) . . ? O3 B5 O7 113.4(2) . . ? O6 B5 O7 106.7(2) . . ? O9 B5 O7 106.0(2) . . ? O6 B6 O11 125.5(3) . . ? O6 B6 O1 114.5(3) . . ? O11 B6 O1 119.9(3) . . ? O11 B7 O10 112.4(2) . . ? O11 B7 O9 110.2(2) . 2_776 ? O10 B7 O9 112.0(2) . 2_776 ? O11 B7 O2 105.3(2) . 2_676 ? O10 B7 O2 107.6(2) . 2_676 ? O9 B7 O2 109.1(2) 2_776 2_676 ? O13 B8 O10 122.3(3) . . ? O13 B8 O1 119.4(3) . . ? O10 B8 O1 118.3(3) . . ? loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_distance _geom_bond_site_symmetry_2 _geom_bond_publ_flag Na1 O7 2.327(2) . ? Na1 O2 2.427(3) 1_545 ? Na1 O10 2.449(2) 2_666 ? Na1 O13 2.518(3) 2_766 ? Na1 O5 2.586(3) 2_665 ? Na1 O8 2.699(3) 2_665 ? Na2 O15 2.291(3) 1_445 ? Na2 O13 2.400(2) 2_666 ? Na2 O12 2.509(2) . ? Na2 O10 2.562(2) 2_666 ? Na2 O8 2.706(3) . ? Na2 O8 2.747(3) 2_565 ? Na2 O4 2.781(3) 1_445 ? Na2 O5 2.856(3) 2_665 ? Na3 O6 2.293(2) 2_766 ? Na3 O1 2.360(3) . ? Na3 O2 2.363(2) 1_545 ? Na3 O11 2.440(2) 2_666 ? Na3 O9 2.640(2) 2_766 ? Na3 O1 2.966(3) 2_766 ? Gd1 O15 2.230(2) 1_546 ? Gd1 O8 2.239(2) 1_656 ? Gd1 O13 2.305(2) . ? Gd1 O9 2.372(2) 2_766 ? Gd1 O14 2.382(2) 2_666 ? Gd1 O7 2.470(2) 2_766 ? Gd1 O4 2.706(2) 2_766 ? Gd1 O12 2.743(2) 2_666 ? B1 O8 1.325(4) . ? B1 O5 1.401(4) . ? B1 O12 1.401(4) . ? B2 O15 1.319(4) . ? B2 O4 1.386(4) . ? B2 O5 1.403(4) . ? B3 O7 1.454(4) . ? B3 O12 1.472(4) . ? B3 O4 1.472(4) . ? B3 O14 1.498(4) . ? B4 O3 1.343(4) . ? B4 O2 1.369(4) . ? B4 O14 1.374(4) . ? B5 O3 1.455(4) . ? B5 O6 1.467(4) . ? B5 O9 1.494(4) . ? B5 O7 1.495(4) . ? B6 O6 1.357(4) . ? B6 O11 1.362(4) . ? B6 O1 1.393(4) . ? B7 O11 1.470(4) . ? B7 O10 1.481(4) . ? B7 O9 1.482(4) 2_776 ? B7 O2 1.483(4) 2_676 ? B8 O13 1.336(4) . ? B8 O10 1.387(4) . ? B8 O1 1.404(4) . ? loop_ _publcif_info_exptl_table_extra_item sin_theta_over_lambda_max loop_ _publcif_info_exptl_table_header_item ?