#------------------------------------------------------------------------------ #$Date: 2011-09-10 06:16:28 +0300 (Sat, 10 Sep 2011) $ #$Revision: 25271 $ #$URL: file:///home/coder/svn-repositories/cod/cif/2/2216715.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_2216715 loop_ _publ_author_name 'Aczel, Adam A.' 'Dabkowska, Hanna A.' 'Britten, James F.' 'Harrington, Laura E.' 'Luke, Graeme M.' _publ_section_title ; Barium chromium oxide, Ba~3~Cr~2~O~8~, as grown by the traveling solvent floating-zone technique ; _journal_coeditor_code PK2063 _journal_issue 12 _journal_name_full 'Acta Crystallographica Section E' _journal_page_first i196 _journal_volume 63 _journal_year 2007 _chemical_formula_iupac 'Ba3 Cr2 O8' _chemical_formula_moiety 'Ba3 Cr2 O8' _chemical_formula_sum 'Ba3 Cr2 O8' _chemical_formula_weight 644.02 _chemical_name_systematic ; tribarium dichromium octaoxide ; _space_group_IT_number 166 _symmetry_cell_setting trigonal _symmetry_space_group_name_Hall '-R 3 2"' _symmetry_space_group_name_H-M 'R -3 m :H' _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 120.00 _cell_formula_units_Z 3 _cell_length_a 5.7450(2) _cell_length_b 5.7450(2) _cell_length_c 21.3883(10) _cell_measurement_reflns_used 2788 _cell_measurement_temperature 296(2) _cell_measurement_theta_max 42.12 _cell_measurement_theta_min 2.86 _cell_volume 611.35(4) _computing_cell_refinement 'APEX2 (Bruker, 2006)' _computing_data_collection 'APEX2 (Bruker, 2006)' _computing_data_reduction 'APEX2 (Bruker, 2006)' _computing_molecular_graphics 'GRETEP (Laugier & Bochu, 2003)' _computing_publication_material 'SHELXTL (Sheldrick, 1997b)' _computing_structure_refinement 'SHELXL97 (Sheldrick, 1997a)' _computing_structure_solution 'SHELXS97 (Sheldrick, 1997a)' _diffrn_ambient_temperature 296(2) _diffrn_measured_fraction_theta_full 0.999 _diffrn_measured_fraction_theta_max 0.999 _diffrn_measurement_device_type 'Bruker APEXII CCD area-detector' _diffrn_measurement_method '\f and \w scans' _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 0.0343 _diffrn_reflns_av_sigmaI/netI 0.0200 _diffrn_reflns_limit_h_max 12 _diffrn_reflns_limit_h_min -8 _diffrn_reflns_limit_k_max 10 _diffrn_reflns_limit_k_min -12 _diffrn_reflns_limit_l_max 46 _diffrn_reflns_limit_l_min -47 _diffrn_reflns_number 9434 _diffrn_reflns_theta_full 52.22 _diffrn_reflns_theta_max 52.22 _diffrn_reflns_theta_min 2.86 _diffrn_standards_number 0 _exptl_absorpt_coefficient_mu 16.866 _exptl_absorpt_correction_T_max 0.77 _exptl_absorpt_correction_T_min 0.38 _exptl_absorpt_correction_type numerical _exptl_absorpt_process_details '(face correction; APEX2; Bruker, 2006)' _exptl_crystal_colour blue _exptl_crystal_density_diffrn 5.248 _exptl_crystal_density_method 'not measured' _exptl_crystal_description rod _exptl_crystal_F_000 840 _exptl_crystal_size_max 0.30 _exptl_crystal_size_mid 0.05 _exptl_crystal_size_min 0.02 _refine_diff_density_max 1.975 _refine_diff_density_min -2.013 _refine_ls_extinction_coef 0.0065(3) _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 1.072 _refine_ls_hydrogen_treatment undef _refine_ls_matrix_type full _refine_ls_number_parameters 19 _refine_ls_number_reflns 928 _refine_ls_number_restraints 0 _refine_ls_restrained_S_all 1.072 _refine_ls_R_factor_all 0.0282 _refine_ls_R_factor_gt 0.0209 _refine_ls_shift/su_max 0.001 _refine_ls_shift/su_mean 0.000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'calc w=1/[\s^2^(Fo^2^)+(0.0269P)^2^] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_gt 0.0488 _refine_ls_wR_factor_ref 0.0511 _reflns_number_gt 779 _reflns_number_total 928 _reflns_threshold_expression >2\s(I) _[local]_cod_data_source_file pk2063.cif _[local]_cod_data_source_block I _[local]_cod_cif_authors_sg_H-M 'R -3m' _[local]_cod_cif_authors_sg_Hall '-R 3 2" ' _cod_depositor_comments ; The following automatic conversions were performed: '_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal' according to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29. Automatic conversion script Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana ; _cod_database_code 2216715 loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-y, x-y, z' '-x+y, -x, z' 'y, x, -z' 'x-y, -y, -z' '-x, -x+y, -z' 'x+2/3, y+1/3, z+1/3' '-y+2/3, x-y+1/3, z+1/3' '-x+y+2/3, -x+1/3, z+1/3' 'y+2/3, x+1/3, -z+1/3' 'x-y+2/3, -y+1/3, -z+1/3' '-x+2/3, -x+y+1/3, -z+1/3' 'x+1/3, y+2/3, z+2/3' '-y+1/3, x-y+2/3, z+2/3' '-x+y+1/3, -x+2/3, z+2/3' 'y+1/3, x+2/3, -z+2/3' 'x-y+1/3, -y+2/3, -z+2/3' '-x+1/3, -x+y+2/3, -z+2/3' '-x, -y, -z' 'y, -x+y, -z' 'x-y, x, -z' '-y, -x, z' '-x+y, y, z' 'x, x-y, z' '-x+2/3, -y+1/3, -z+1/3' 'y+2/3, -x+y+1/3, -z+1/3' 'x-y+2/3, x+1/3, -z+1/3' '-y+2/3, -x+1/3, z+1/3' '-x+y+2/3, y+1/3, z+1/3' 'x+2/3, x-y+1/3, z+1/3' '-x+1/3, -y+2/3, -z+2/3' 'y+1/3, -x+y+2/3, -z+2/3' 'x-y+1/3, x+2/3, -z+2/3' '-y+1/3, -x+2/3, z+2/3' '-x+y+1/3, y+2/3, z+2/3' 'x+1/3, x-y+2/3, z+2/3' loop_ _atom_site_type_symbol _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 Ba Ba1 0.0000 0.0000 0.0000 0.01420(5) Uani d S 1 Ba Ba2 0.0000 0.0000 0.205924(6) 0.00918(5) Uani d S 1 Cr Cr1 0.0000 0.0000 0.407042(18) 0.00721(6) Uani d S 1 O O1 0.82832(9) 0.17168(9) 0.89871(5) 0.01272(17) Uani d S 1 O O2 0.0000 0.0000 0.32872(9) 0.0273(5) Uani d S 1 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 Ba1 0.01762(7) 0.01762(7) 0.00736(7) 0.00881(3) 0.000 0.000 Ba2 0.00956(5) 0.00956(5) 0.00841(6) 0.00478(3) 0.000 0.000 Cr1 0.00723(8) 0.00723(8) 0.00718(11) 0.00361(4) 0.000 0.000 O1 0.0143(3) 0.0143(3) 0.0137(4) 0.0102(3) 0.00047(14) -0.00047(14) O2 0.0366(8) 0.0366(8) 0.0085(7) 0.0183(4) 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 O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Cr Cr 0.3209 0.6236 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Ba Ba -0.3244 2.2819 '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 O1 Ba1 O1 19_656 1_454 180.00(3) O1 Ba1 O1 19_656 20_566 64.86(3) O1 Ba1 O1 1_454 20_566 115.14(3) O1 Ba1 O1 19_656 2_544 115.14(3) O1 Ba1 O1 1_454 2_544 64.86(3) O1 Ba1 O1 20_566 2_544 180.00(3) O1 Ba1 O1 19_656 21_446 64.86(3) O1 Ba1 O1 1_454 21_446 115.14(3) O1 Ba1 O1 20_566 21_446 64.86(3) O1 Ba1 O1 2_544 21_446 115.14(3) O1 Ba1 O1 19_656 3_664 115.14(3) O1 Ba1 O1 1_454 3_664 64.86(3) O1 Ba1 O1 20_566 3_664 115.14(3) O1 Ba1 O1 2_544 3_664 64.86(3) O1 Ba1 O1 21_446 3_664 180.00(3) O1 Ba1 O2 19_656 25 70.56(3) O1 Ba1 O2 1_454 25 109.44(3) O1 Ba1 O2 20_566 25 70.56(3) O1 Ba1 O2 2_544 25 109.44(3) O1 Ba1 O2 21_446 25 126.55(4) O1 Ba1 O2 3_664 25 53.45(4) O1 Ba1 O2 19_656 25_445 70.56(3) O1 Ba1 O2 1_454 25_445 109.44(3) O1 Ba1 O2 20_566 25_445 126.55(4) O1 Ba1 O2 2_544 25_445 53.45(4) O1 Ba1 O2 21_446 25_445 70.56(3) O1 Ba1 O2 3_664 25_445 109.44(3) O2 Ba1 O2 25 25_445 119.913(4) O1 Ba1 O2 19_656 13_554 109.44(3) O1 Ba1 O2 1_454 13_554 70.56(3) O1 Ba1 O2 20_566 13_554 53.45(4) O1 Ba1 O2 2_544 13_554 126.55(4) O1 Ba1 O2 21_446 13_554 109.44(3) O1 Ba1 O2 3_664 13_554 70.56(3) O2 Ba1 O2 25 13_554 60.087(4) O2 Ba1 O2 25_445 13_554 180.00(7) O1 Ba1 O2 19_656 13_444 109.44(3) O1 Ba1 O2 1_454 13_444 70.56(3) O1 Ba1 O2 20_566 13_444 109.44(3) O1 Ba1 O2 2_544 13_444 70.56(3) O1 Ba1 O2 21_446 13_444 53.45(4) O1 Ba1 O2 3_664 13_444 126.55(4) O2 Ba1 O2 25 13_444 180.00(7) O2 Ba1 O2 25_445 13_444 60.087(4) O2 Ba1 O2 13_554 13_444 119.913(4) O1 Ba1 O2 19_656 25_455 126.55(4) O1 Ba1 O2 1_454 25_455 53.45(4) O1 Ba1 O2 20_566 25_455 70.56(3) O1 Ba1 O2 2_544 25_455 109.44(3) O1 Ba1 O2 21_446 25_455 70.56(3) O1 Ba1 O2 3_664 25_455 109.44(3) O2 Ba1 O2 25 25_455 119.912(4) O2 Ba1 O2 25_445 25_455 119.912(4) O2 Ba1 O2 13_554 25_455 60.088(4) O2 Ba1 O2 13_444 25_455 60.088(4) O1 Ba1 O2 19_656 13_544 53.45(4) O1 Ba1 O2 1_454 13_544 126.55(4) O1 Ba1 O2 20_566 13_544 109.44(3) O1 Ba1 O2 2_544 13_544 70.56(3) O1 Ba1 O2 21_446 13_544 109.44(3) O1 Ba1 O2 3_664 13_544 70.56(3) O2 Ba1 O2 25 13_544 60.088(4) O2 Ba1 O2 25_445 13_544 60.088(4) O2 Ba1 O2 13_554 13_544 119.912(4) O2 Ba1 O2 13_444 13_544 119.912(4) O2 Ba1 O2 25_455 13_544 180.00(7) O2 Ba2 O1 . 19_656 142.65(2) O2 Ba2 O1 . 21_446 142.64(2) O1 Ba2 O1 19_656 21_446 63.40(3) O2 Ba2 O1 . 20_566 142.64(2) O1 Ba2 O1 19_656 20_566 63.40(3) O1 Ba2 O1 21_446 20_566 63.40(3) O2 Ba2 O1 . 7_454 78.99(2) O1 Ba2 O1 19_656 7_454 99.33(2) O1 Ba2 O1 21_446 7_454 131.476(10) O1 Ba2 O1 20_566 7_454 68.34(4) O2 Ba2 O1 . 7_344 78.99(2) O1 Ba2 O1 19_656 7_344 99.33(2) O1 Ba2 O1 21_446 7_344 68.34(4) O1 Ba2 O1 20_566 7_344 131.476(10) O1 Ba2 O1 7_454 7_344 157.90(4) O2 Ba2 O1 . 9_564 78.99(2) O1 Ba2 O1 19_656 9_564 131.476(10) O1 Ba2 O1 21_446 9_564 99.33(2) O1 Ba2 O1 20_566 9_564 68.34(4) O1 Ba2 O1 7_454 9_564 56.85(4) O1 Ba2 O1 7_344 9_564 116.445(13) O2 Ba2 O1 . 8_544 78.99(2) O1 Ba2 O1 19_656 8_544 68.34(4) O1 Ba2 O1 21_446 8_544 131.476(10) O1 Ba2 O1 20_566 8_544 99.33(2) O1 Ba2 O1 7_454 8_544 60.73(4) O1 Ba2 O1 7_344 8_544 116.445(13) O1 Ba2 O1 9_564 8_544 116.445(13) O2 Ba2 O1 . 8_444 78.99(2) O1 Ba2 O1 19_656 8_444 131.475(10) O1 Ba2 O1 21_446 8_444 68.34(4) O1 Ba2 O1 20_566 8_444 99.33(2) O1 Ba2 O1 7_454 8_444 116.445(13) O1 Ba2 O1 7_344 8_444 56.85(4) O1 Ba2 O1 9_564 8_444 60.73(4) O1 Ba2 O1 8_544 8_444 157.90(4) O2 Ba2 O1 . 9_554 78.99(2) O1 Ba2 O1 19_656 9_554 68.34(4) O1 Ba2 O1 21_446 9_554 99.33(2) O1 Ba2 O1 20_566 9_554 131.476(10) O1 Ba2 O1 7_454 9_554 116.445(13) O1 Ba2 O1 7_344 9_554 60.73(4) O1 Ba2 O1 9_564 9_554 157.90(4) O1 Ba2 O1 8_544 9_554 56.85(4) O1 Ba2 O1 8_444 9_554 116.445(13) O2 Ba2 Cr1 . 31_545 70.902(7) O1 Ba2 Cr1 19_656 31_545 71.74(2) O1 Ba2 Cr1 21_446 31_545 123.145(7) O1 Ba2 Cr1 20_566 31_545 123.145(7) O1 Ba2 Cr1 7_454 31_545 87.343(18) O1 Ba2 Cr1 7_344 31_545 87.343(18) O1 Ba2 Cr1 9_564 31_545 137.11(2) O1 Ba2 Cr1 8_544 31_545 29.108(18) O1 Ba2 Cr1 8_444 31_545 137.11(2) O1 Ba2 Cr1 9_554 31_545 29.109(18) O2 Ba2 Cr1 . 31 70.900(7) O1 Ba2 Cr1 19_656 31 123.146(7) O1 Ba2 Cr1 21_446 31 123.146(7) O1 Ba2 Cr1 20_566 31 71.74(2) O1 Ba2 Cr1 7_454 31 29.109(18) O1 Ba2 Cr1 7_344 31 137.11(2) O1 Ba2 Cr1 9_564 31 29.109(18) O1 Ba2 Cr1 8_544 31 87.343(18) O1 Ba2 Cr1 8_444 31 87.343(18) O1 Ba2 Cr1 9_554 31 137.11(2) Cr1 Ba2 Cr1 31_545 31 109.841(7) O2 Cr1 O1 . 27_446 110.14(4) O2 Cr1 O1 . 26_456 110.14(4) O1 Cr1 O1 27_446 26_456 108.80(4) O2 Cr1 O1 . 25_556 110.14(4) O1 Cr1 O1 27_446 25_556 108.79(4) O1 Cr1 O1 26_456 25_556 108.79(4) O2 Cr1 Ba2 . 31 109.099(7) O1 Cr1 Ba2 27_446 31 56.202(7) O1 Cr1 Ba2 26_456 31 140.76(4) O1 Cr1 Ba2 25_556 31 56.204(7) O2 Cr1 Ba2 . 31_445 109.099(7) O1 Cr1 Ba2 27_446 31_445 140.76(4) O1 Cr1 Ba2 26_456 31_445 56.202(7) O1 Cr1 Ba2 25_556 31_445 56.204(7) Ba2 Cr1 Ba2 31 31_445 109.842(7) O2 Cr1 Ba2 . 31_545 109.098(7) O1 Cr1 Ba2 27_446 31_545 56.205(7) O1 Cr1 Ba2 26_456 31_545 56.205(7) O1 Cr1 Ba2 25_556 31_545 140.76(4) Ba2 Cr1 Ba2 31 31_545 109.841(7) Ba2 Cr1 Ba2 31_445 31_545 109.841(7) O2 Cr1 Ba1 . 7_445 64.579(6) O1 Cr1 Ba1 27_446 7_445 124.876(11) O1 Cr1 Ba1 26_456 7_445 45.56(4) O1 Cr1 Ba1 25_556 7_445 124.874(11) Ba2 Cr1 Ba1 31 7_445 173.677(12) Ba2 Cr1 Ba1 31_445 7_445 73.364(2) Ba2 Cr1 Ba1 31_545 7_445 73.365(2) O2 Cr1 Ba1 . 7 64.579(6) O1 Cr1 Ba1 27_446 7 45.56(4) O1 Cr1 Ba1 26_456 7 124.876(11) O1 Cr1 Ba1 25_556 7 124.874(11) Ba2 Cr1 Ba1 31 7 73.364(2) Ba2 Cr1 Ba1 31_445 7 173.677(12) Ba2 Cr1 Ba1 31_545 7 73.365(2) Ba1 Cr1 Ba1 7_445 7 102.921(7) O2 Cr1 Ba1 . 7_455 64.579(6) O1 Cr1 Ba1 27_446 7_455 124.873(11) O1 Cr1 Ba1 26_456 7_455 124.873(11) O1 Cr1 Ba1 25_556 7_455 45.56(4) Ba2 Cr1 Ba1 31 7_455 73.365(2) Ba2 Cr1 Ba1 31_445 7_455 73.365(2) Ba2 Cr1 Ba1 31_545 7_455 173.678(12) Ba1 Cr1 Ba1 7_445 7_455 102.920(7) Ba1 Cr1 Ba1 7 7_455 102.920(7) O2 Cr1 Cr1 . 31_445 46.451(7) O1 Cr1 Cr1 27_446 31_445 156.59(4) O1 Cr1 Cr1 26_456 31_445 84.09(3) O1 Cr1 Cr1 25_556 31_445 84.09(3) Ba2 Cr1 Cr1 31 31_445 124.602(5) Ba2 Cr1 Cr1 31_445 31_445 62.648(3) Ba2 Cr1 Cr1 31_545 31_445 124.602(5) Ba1 Cr1 Cr1 7_445 31_445 51.460(3) Ba1 Cr1 Cr1 7 31_445 111.030(13) Ba1 Cr1 Cr1 7_455 31_445 51.460(3) O2 Cr1 Cr1 . 31 46.451(7) O1 Cr1 Cr1 27_446 31 84.09(3) O1 Cr1 Cr1 26_456 31 156.59(4) O1 Cr1 Cr1 25_556 31 84.09(3) Ba2 Cr1 Cr1 31 31 62.648(3) Ba2 Cr1 Cr1 31_445 31 124.602(5) Ba2 Cr1 Cr1 31_545 31 124.602(5) Ba1 Cr1 Cr1 7_445 31 111.030(13) Ba1 Cr1 Cr1 7 31 51.460(3) Ba1 Cr1 Cr1 7_455 31 51.460(4) Cr1 Cr1 Cr1 31_445 31 77.758(11) Cr1 O2 Ba2 . . 180.0 Cr1 O2 Ba1 . 7 88.29(4) Ba2 O2 Ba1 . 7 91.71(4) Cr1 O2 Ba1 . 7_445 88.29(4) Ba2 O2 Ba1 . 7_445 91.71(4) Ba1 O2 Ba1 7 7_445 119.913(4) Cr1 O2 Ba1 . 7_455 88.29(4) Ba2 O2 Ba1 . 7_455 91.71(4) Ba1 O2 Ba1 7 7_455 119.912(4) Ba1 O2 Ba1 7_445 7_455 119.912(4) Cr1 O1 Ba1 25_556 1_656 108.12(5) Cr1 O1 Ba2 25_556 19_656 147.49(5) Ba1 O1 Ba2 1_656 19_656 104.39(3) Cr1 O1 Ba2 25_556 13_545 94.688(19) Ba1 O1 Ba2 1_656 13_545 98.010(19) Ba2 O1 Ba2 19_656 13_545 80.67(2) Cr1 O1 Ba2 25_556 13_655 94.688(19) Ba1 O1 Ba2 1_656 13_655 98.009(19) Ba2 O1 Ba2 19_656 13_655 80.67(2) Ba2 O1 Ba2 13_545 13_655 157.90(4) loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_2 _geom_bond_distance Ba1 O1 19_656 2.7589(10) Ba1 O1 1_454 2.7589(10) Ba1 O1 20_566 2.7589(10) Ba1 O1 2_544 2.7589(10) Ba1 O1 21_446 2.7589(10) Ba1 O1 3_664 2.7589(10) Ba1 O2 25 3.31834(13) Ba1 O2 25_445 3.31834(13) Ba1 O2 13_554 3.31834(13) Ba1 O2 13_444 3.31834(13) Ba1 O2 25_455 3.31838(13) Ba1 O2 13_544 3.31838(13) Ba2 O2 . 2.626(2) Ba2 O1 19_656 2.8155(10) Ba2 O1 21_446 2.8155(10) Ba2 O1 20_566 2.8155(10) Ba2 O1 7_454 2.9268(2) Ba2 O1 7_344 2.9268(2) Ba2 O1 9_564 2.9268(2) Ba2 O1 8_544 2.9268(2) Ba2 O1 8_444 2.9268(2) Ba2 O1 9_554 2.9268(2) Ba2 Cr1 31_545 3.51010(18) Ba2 Cr1 31 3.51011(18) Cr1 O2 . 1.675(2) Cr1 O1 27_446 1.7133(9) Cr1 O1 26_456 1.7133(9) Cr1 O1 25_556 1.7134(9) Cr1 Ba2 31 3.51007(19) Cr1 Ba2 31_445 3.51007(18) Cr1 Ba2 31_545 3.51010(18) Cr1 Ba1 7_445 3.6724(2) Cr1 Ba1 7 3.6724(2) Cr1 Ba1 7_455 3.6725(2) Cr1 Cr1 31_445 4.5764(6) Cr1 Cr1 31 4.5764(6) O2 Ba1 7 3.31834(13) O2 Ba1 7_445 3.31834(13) O2 Ba1 7_455 3.31837(13) O1 Cr1 25_556 1.7133(9) O1 Ba1 1_656 2.7589(10) O1 Ba2 19_656 2.8155(10) O1 Ba2 13_545 2.9268(2) O1 Ba2 13_655 2.9268(2)