#------------------------------------------------------------------------------ #$Date: 2011-09-10 04:16:28 +0100 (Sat, 10 Sep 2011) $ #$Revision: 25271 $ #$URL: svn://www.crystallography.net/cod/cif/2/2006899.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_2006899 loop_ _publ_author_name 'Plesek, J.' 'St\'ibr, B.' 'Cooke, P. A.' 'Kennedy, J. D.' 'McGrath, T. D.' 'Thornton-Pett, M.' _publ_section_title ; An Additional Isomer of the Neutral Dicarbollide Analogue of Ferrocene [Fe{C~2~B~9~H~10~(SMe~2~)}~2~] ; _journal_issue 1 _journal_name_full 'Acta Crystallographica Section C' _journal_page_first 36 _journal_page_last 38 _journal_volume 54 _journal_year 1998 _chemical_formula_iupac '[Fe(C4 H16 B9 S)2]' _chemical_formula_sum 'C8 H32 B18 Fe S2' _chemical_formula_weight 442.89 _chemical_name_systematic ; 8,8'-bis(dimethylsulphido)-commo-3,3'-ferra- bis(3,1,2-closo-ferradicarbadodecaborane(10)) ; _space_group_IT_number 18 _symmetry_cell_setting orthorhombic _symmetry_space_group_name_Hall 'P 2 2ab' _symmetry_space_group_name_H-M 'P 21 21 2' _audit_creation_method SHELXL _cell_angle_alpha 90.00 _cell_angle_beta 90.00 _cell_angle_gamma 90.00 _cell_formula_units_Z 2 _cell_length_a 13.1891(9) _cell_length_b 10.5406(8) _cell_length_c 8.0819(8) _cell_measurement_reflns_used 30 _cell_measurement_temperature 200(2) _cell_measurement_theta_max 20.02 _cell_measurement_theta_min 16.16 _cell_volume 1123.55(16) _computing_cell_refinement DIF4 _computing_data_collection 'DIF4 (Stoe & Cie, 1988a)' _computing_data_reduction 'REDU4 (Stoe & Cie, 1988b)' _computing_molecular_graphics 'ORTEX5 (McArdle, 1996)' _computing_publication_material ; SHELXL93 (Sheldrick, 1993), PLATON (Spek, 1995) ; _computing_structure_refinement 'SHELXL93 (Sheldrick, 1993)' _computing_structure_solution 'SHELXS86 (Sheldrick, 1990)' _diffrn_ambient_temperature 200(2) _diffrn_measurement_device_type 'Stoe Stadi-4 four-circle diffractometer' _diffrn_measurement_method \w/\q _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 0.0122 _diffrn_reflns_av_sigmaI/netI 0.0126 _diffrn_reflns_limit_h_max 15 _diffrn_reflns_limit_h_min -15 _diffrn_reflns_limit_k_max 12 _diffrn_reflns_limit_k_min -12 _diffrn_reflns_limit_l_max 9 _diffrn_reflns_limit_l_min -9 _diffrn_reflns_number 4680 _diffrn_reflns_theta_max 25.00 _diffrn_reflns_theta_min 2.47 _diffrn_standards_decay_% 0 _diffrn_standards_interval_time 60 _diffrn_standards_number 3 _exptl_absorpt_coefficient_mu 0.852 _exptl_absorpt_correction_T_max 0.764 _exptl_absorpt_correction_T_min 0.652 _exptl_absorpt_correction_type '\y scans' _exptl_absorpt_process_details '(North, Phillips & Mathews, 1968)' _exptl_crystal_colour red _exptl_crystal_density_diffrn 1.310 _exptl_crystal_density_method 'not measured' _exptl_crystal_description plate _exptl_crystal_F_000 456 _exptl_crystal_size_max 0.68 _exptl_crystal_size_mid 0.42 _exptl_crystal_size_min 0.27 _refine_diff_density_max 0.169 _refine_diff_density_min -0.179 _refine_ls_abs_structure_details 'Flack (1983) paramter = -0.002(12)' _refine_ls_abs_structure_Flack -0.002(12) _refine_ls_extinction_method none _refine_ls_goodness_of_fit_all 1.127 _refine_ls_goodness_of_fit_obs 1.126 _refine_ls_hydrogen_treatment 'H atoms: see text' _refine_ls_matrix_type full _refine_ls_number_parameters 176 _refine_ls_number_reflns 1988 _refine_ls_number_restraints 0 _refine_ls_restrained_S_all 1.127 _refine_ls_restrained_S_obs 1.126 _refine_ls_R_factor_all 0.0168 _refine_ls_R_factor_obs 0.0165 _refine_ls_shift/esd_max -0.001 _refine_ls_shift/esd_mean 0.000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_scheme 'calc w = 1/[\s^2^(Fo^2^)+(0.0277P)^2^+0.1595P] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_wR_factor_all 0.0452 _refine_ls_wR_factor_obs 0.0450 _reflns_number_observed 1969 _reflns_number_total 1988 _reflns_observed_criterion I>2\s(I) _[local]_cod_data_source_file ab1497.cif _[local]_cod_data_source_block bs8 _[local]_cod_chemical_formula_sum_orig 'C8 H32 B18 Fe1 S2' _cod_original_cell_volume 1123.5(2) _cod_database_code 2006899 loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, -y, z' '-x+1/2, y+1/2, -z' 'x+1/2, -y+1/2, -z' 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 Fe3 0.01662(13) 0.01234(13) 0.01405(13) 0.00006(10) 0.000 0.000 C1 0.0188(6) 0.0154(6) 0.0234(7) -0.0007(5) 0.0005(6) 0.0007(6) C2 0.0251(8) 0.0182(7) 0.0170(6) 0.0014(6) 0.0029(6) 0.0031(5) B4 0.0180(9) 0.0166(7) 0.0191(7) -0.0004(6) -0.0001(6) -0.0018(6) B5 0.0233(8) 0.0154(7) 0.0279(7) -0.0010(8) 0.0012(8) -0.0017(6) B7 0.0211(7) 0.0174(8) 0.0177(7) 0.0001(6) -0.0033(6) 0.0019(6) S8 0.0189(2) 0.0195(2) 0.0195(2) -0.00233(12) 0.00202(12) 0.00154(13) B6 0.0258(8) 0.0166(8) 0.0283(7) 0.0003(8) 0.0045(9) 0.0062(6) B8 0.0180(7) 0.0163(8) 0.0171(7) -0.0015(6) 0.0009(6) 0.0011(6) C81 0.0199(7) 0.0369(9) 0.0503(10) 0.0028(6) 0.0073(7) 0.0127(9) C82 0.0430(8) 0.0435(10) 0.0185(7) -0.0153(8) 0.0041(6) 0.0002(7) B9 0.0208(7) 0.0185(7) 0.0251(8) 0.0009(6) -0.0011(7) 0.0035(7) B10 0.0238(7) 0.0176(7) 0.0288(9) 0.0018(6) 0.0025(7) 0.0024(7) B11 0.0273(9) 0.0220(9) 0.0228(8) 0.0022(8) -0.0016(7) 0.0061(7) B12 0.0219(8) 0.0160(7) 0.0234(8) 0.0014(6) 0.0036(6) -0.0012(6) loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_thermal_displace_type _atom_site_calc_flag _atom_site_refinement_flags _atom_site_occupancy _atom_site_type_symbol Fe3 1.0000 1.0000 0.85134(3) 0.01434(8) Uani d S 1 Fe C1 0.95212(10) 0.81551(12) 0.8559(2) 0.0192(3) Uani d . 1 C C2 1.01601(11) 0.85553(13) 1.0184(2) 0.0201(3) Uani d . 1 C B4 1.01568(12) 0.85163(14) 0.6787(2) 0.0179(3) Uani d . 1 B B5 1.0082(2) 0.6911(2) 0.7557(2) 0.0222(3) Uani d . 1 B B7 1.12901(12) 0.9226(2) 0.9685(2) 0.0188(3) Uani d . 1 B S8 1.21579(2) 1.02464(3) 0.62051(4) 0.01928(9) Uani d . 1 S B6 1.0062(2) 0.6951(2) 0.9740(2) 0.0236(3) Uani d . 1 B B8 1.13275(12) 0.9133(2) 0.7508(2) 0.0171(3) Uani d . 1 B C81 1.34379(11) 0.9681(2) 0.6363(2) 0.0357(4) Uani d . 1 C H81A 1.3671(4) 0.9787(11) 0.7464(13) 0.054 Uiso calc R 1 H H81B 1.3858(5) 1.0149(10) 0.5633(14) 0.054 Uiso calc R 1 H H81C 1.3460(2) 0.8809(10) 0.6075(16) 0.054 Uiso calc R 1 H C82 1.18746(12) 0.9822(2) 0.4104(2) 0.0350(4) Uani d . 1 C H82A 1.1192(8) 0.9950(11) 0.3901(5) 0.052 Uiso calc R 1 H H82B 1.2032(9) 0.8976(10) 0.3934(5) 0.052 Uiso calc R 1 H H82C 1.2254(8) 1.0320(10) 0.3393(9) 0.052 Uiso calc R 1 H B9 1.19733(12) 0.79514(14) 0.8697(2) 0.0215(3) Uani d . 1 B B10 1.11972(12) 0.65694(14) 0.8715(2) 0.0234(3) Uani d . 1 B B11 1.12125(13) 0.7621(2) 1.0436(2) 0.0240(4) Uani d . 1 B B12 1.12685(13) 0.7515(2) 0.6896(2) 0.0205(3) Uani d . 1 B H1 0.8807(13) 0.8101(15) 0.863(2) 0.026(4) Uiso d . 1 H H2 0.9798(11) 0.8757(15) 1.1155(19) 0.017(4) Uiso d . 1 H H4 0.9784(13) 0.8598(16) 0.556(2) 0.029(5) Uiso d . 1 H H5 0.9591(12) 0.6216(17) 0.691(2) 0.026(4) Uiso d . 1 H H6 0.9576(11) 0.6418(16) 1.047(2) 0.023(4) Uiso d . 1 H H7 1.1666(12) 0.9854(18) 1.045(2) 0.031(4) Uiso d . 1 H H9 1.2790(13) 0.7880(16) 0.878(2) 0.029(4) Uiso d . 1 H H10 1.1493(13) 0.5611(16) 0.877(2) 0.030(4) Uiso d . 1 H H11 1.1453(14) 0.7436(16) 1.165(2) 0.027(4) Uiso d . 1 H H12 1.1628(12) 0.7229(15) 0.5795(19) 0.021(4) Uiso d . 1 H loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' B B 0.0013 0.0007 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' S S 0.1246 0.1234 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Fe Fe 0.3463 0.8444 '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 C1 Fe3 C1 2_775 . 177.96(9) y C1 Fe3 C2 2_775 2_775 46.57(6) ? C1 Fe3 C2 . 2_775 131.60(6) y C1 Fe3 C2 2_775 . 131.60(6) ? C1 Fe3 C2 . . 46.57(6) y C2 Fe3 C2 2_775 . 97.40(9) y C1 Fe3 B4 2_775 . 133.44(6) n C1 Fe3 B4 . . 48.40(6) y C2 Fe3 B4 2_775 . 179.67(6) n C2 Fe3 B4 . . 82.80(7) n C1 Fe3 B4 2_775 2_775 48.40(6) ? C1 Fe3 B4 . 2_775 133.44(6) ? C2 Fe3 B4 2_775 2_775 82.80(7) ? C2 Fe3 B4 . 2_775 179.67(7) n B4 Fe3 B4 . 2_775 97.01(9) n C1 Fe3 B7 2_775 . 96.34(6) n C1 Fe3 B7 . . 82.73(6) n C2 Fe3 B7 2_775 . 94.29(7) ? C2 Fe3 B7 . . 48.19(6) y B4 Fe3 B7 . . 86.04(7) n B4 Fe3 B7 2_775 . 131.55(7) ? C1 Fe3 B7 2_775 2_775 82.73(6) ? C1 Fe3 B7 . 2_775 96.34(6) n C2 Fe3 B7 2_775 2_775 48.19(6) ? C2 Fe3 B7 . 2_775 94.29(7) n B4 Fe3 B7 . 2_775 131.55(7) n B4 Fe3 B7 2_775 2_775 86.04(7) ? B7 Fe3 B7 . 2_775 126.71(10) n C1 Fe3 B8 2_775 2_775 81.58(6) ? C1 Fe3 B8 . 2_775 99.21(6) n C2 Fe3 B8 2_775 2_775 81.28(6) ? C2 Fe3 B8 . 2_775 130.85(6) n B4 Fe3 B8 . 2_775 98.38(7) n B4 Fe3 B8 2_775 2_775 49.44(6) ? B7 Fe3 B8 . 2_775 175.39(7) n B7 Fe3 B8 2_775 2_775 49.05(6) ? C1 Fe3 B8 2_775 . 99.21(6) ? C1 Fe3 B8 . . 81.58(6) n C2 Fe3 B8 2_775 . 130.85(6) ? C2 Fe3 B8 . . 81.28(6) n B4 Fe3 B8 . . 49.44(6) y B4 Fe3 B8 2_775 . 98.38(7) ? B7 Fe3 B8 . . 49.05(6) y B7 Fe3 B8 2_775 . 175.39(6) ? B8 Fe3 B8 2_775 . 135.25(8) ? C2 C1 B4 . . 111.61(11) y C2 C1 B5 . . 111.06(11) ? B4 C1 B5 . . 63.88(10) ? C2 C1 B6 . . 62.01(10) ? B4 C1 B6 . . 114.99(11) ? B5 C1 B6 . . 61.55(9) ? C2 C1 Fe3 . . 66.76(7) n B4 C1 Fe3 . . 67.68(7) n B5 C1 Fe3 . . 125.95(10) ? B6 C1 Fe3 . . 125.18(10) ? C2 C1 H1 . . 119.2(11) ? B4 C1 H1 . . 123.6(11) ? B5 C1 H1 . . 114.4(10) ? B6 C1 H1 . . 109.4(10) ? Fe3 C1 H1 . . 111.5(10) ? C1 C2 B7 . . 111.91(11) y C1 C2 B11 . . 111.65(12) ? B7 C2 B11 . . 63.66(10) ? C1 C2 B6 . . 62.52(9) ? B7 C2 B6 . . 114.97(12) ? B11 C2 B6 . . 61.61(10) ? C1 C2 Fe3 . . 66.67(7) n B7 C2 Fe3 . . 67.94(7) n B11 C2 Fe3 . . 126.13(10) ? B6 C2 Fe3 . . 125.57(10) ? C1 C2 H2 . . 118.1(9) ? B7 C2 H2 . . 123.3(9) ? B11 C2 H2 . . 116.1(9) ? B6 C2 H2 . . 110.7(10) ? Fe3 C2 H2 . . 109.2(9) ? C1 B4 B8 . . 103.58(11) y C1 B4 B5 . . 58.26(8) ? B8 B4 B5 . . 106.14(12) ? C1 B4 B12 . . 103.19(11) ? B8 B4 B12 . . 59.49(10) ? B5 B4 B12 . . 58.71(10) ? C1 B4 Fe3 . . 63.92(7) n B8 B4 Fe3 . . 66.16(7) n B5 B4 Fe3 . . 117.53(10) ? B12 B4 Fe3 . . 118.74(10) ? C1 B4 H4 . . 123.4(9) ? B8 B4 H4 . . 130.6(9) ? B5 B4 H4 . . 110.9(9) ? B12 B4 H4 . . 116.6(9) ? Fe3 B4 H4 . . 119.4(9) ? C1 B5 B6 . . 60.10(10) ? C1 B5 B12 . . 104.47(11) ? B6 B5 B12 . . 107.82(15) ? C1 B5 B10 . . 105.28(11) ? B6 B5 B10 . . 59.44(11) ? B12 B5 B10 . . 60.10(11) ? C1 B5 B4 . . 57.86(9) ? B6 B5 B4 . . 108.82(12) ? B12 B5 B4 . . 60.75(9) ? B10 B5 B4 . . 109.00(12) ? C1 B5 H5 . . 118.5(8) ? B6 B5 H5 . . 118.6(9) ? B12 B5 H5 . . 127.7(8) ? B10 B5 H5 . . 126.7(9) ? B4 B5 H5 . . 119.2(9) ? C2 B7 B8 . . 103.80(11) y C2 B7 B11 . . 58.61(9) ? B8 B7 B11 . . 106.65(12) ? C2 B7 B9 . . 103.54(11) ? B8 B7 B9 . . 60.21(10) ? B11 B7 B9 . . 58.54(9) ? C2 B7 Fe3 . . 63.88(8) n B8 B7 Fe3 . . 66.19(8) n B11 B7 Fe3 . . 117.94(10) ? B9 B7 Fe3 . . 119.47(10) ? C2 B7 H7 . . 123.1(9) ? B8 B7 H7 . . 128.2(9) ? B11 B7 H7 . . 115.4(10) ? B9 B7 H7 . . 120.2(9) ? Fe3 B7 H7 . . 114.0(10) ? C81 S8 C82 . . 100.39(9) y C81 S8 B8 . . 107.16(8) y C82 S8 B8 . . 104.35(7) y C2 B6 C1 . . 55.47(8) ? C2 B6 B10 . . 104.91(12) ? C1 B6 B10 . . 104.91(11) ? C2 B6 B11 . . 58.68(9) ? C1 B6 B11 . . 103.64(12) ? B10 B6 B11 . . 60.62(11) ? C2 B6 B5 . . 103.25(11) ? C1 B6 B5 . . 58.35(9) ? B10 B6 B5 . . 60.70(11) ? B11 B6 B5 . . 108.37(15) ? C2 B6 H6 . . 117.2(9) ? C1 B6 H6 . . 117.0(9) ? B10 B6 H6 . . 132.1(9) ? B11 B6 H6 . . 124.6(9) ? B5 B6 H6 . . 124.4(10) ? B7 B8 B4 . . 108.87(11) y B7 B8 B12 . . 109.23(12) ? B4 B8 B12 . . 61.24(9) ? B7 B8 B9 . . 61.00(9) ? B4 B8 B9 . . 109.61(11) ? B12 B8 B9 . . 60.16(9) ? B7 B8 S8 . . 121.99(11) y B4 B8 S8 . . 122.74(10) y B12 B8 S8 . . 117.30(10) y B9 B8 S8 . . 116.64(10) y B7 B8 Fe3 . . 64.76(8) n B4 B8 Fe3 . . 64.40(8) n B12 B8 Fe3 . . 118.70(10) ? B9 B8 Fe3 . . 118.91(10) ? S8 B8 Fe3 . . 114.55(8) y S8 C81 H81A . . 109.47(6) ? S8 C81 H81B . . 109.47(6) ? H81A C81 H81B . . 109.5 ? S8 C81 H81C . . 109.47(6) ? H81A C81 H81C . . 109.5 ? H81B C81 H81C . . 109.5 ? S8 C82 H82A . . 109.47(5) ? S8 C82 H82B . . 109.47(6) ? H82A C82 H82B . . 109.5 ? S8 C82 H82C . . 109.47(6) ? H82A C82 H82C . . 109.5 ? H82B C82 H82C . . 109.5 ? B11 B9 B10 . . 60.27(10) ? B11 B9 B12 . . 107.61(12) ? B10 B9 B12 . . 59.80(9) ? B11 B9 B8 . . 107.17(12) ? B10 B9 B8 . . 107.46(11) ? B12 B9 B8 . . 59.60(9) ? B11 B9 B7 . . 60.63(10) ? B10 B9 B7 . . 108.55(12) ? B12 B9 B7 . . 107.00(11) ? B8 B9 B7 . . 58.78(9) ? B11 B9 H9 . . 120.3(10) ? B10 B9 H9 . . 121.0(9) ? B12 B9 H9 . . 123.4(9) ? B8 B9 H9 . . 123.8(9) ? B7 B9 H9 . . 121.5(9) ? B6 B10 B11 . . 59.90(10) ? B6 B10 B12 . . 107.85(11) ? B11 B10 B12 . . 107.29(11) ? B6 B10 B9 . . 107.85(11) ? B11 B10 B9 . . 59.35(9) ? B12 B10 B9 . . 60.32(9) ? B6 B10 B5 . . 59.87(9) ? B11 B10 B5 . . 107.15(11) ? B12 B10 B5 . . 59.71(10) ? B9 B10 B5 . . 107.79(11) ? B6 B10 H10 . . 120.0(9) ? B11 B10 H10 . . 122.9(9) ? B12 B10 H10 . . 122.5(9) ? B9 B10 H10 . . 123.8(9) ? B5 B10 H10 . . 120.5(9) ? C2 B11 B9 . . 104.65(12) ? C2 B11 B6 . . 59.71(10) ? B9 B11 B6 . . 108.34(12) ? C2 B11 B10 . . 104.82(12) ? B9 B11 B10 . . 60.38(10) ? B6 B11 B10 . . 59.48(10) ? C2 B11 B7 . . 57.73(9) ? B9 B11 B7 . . 60.83(9) ? B6 B11 B7 . . 108.48(12) ? B10 B11 B7 . . 108.79(12) ? C2 B11 H11 . . 117.6(10) ? B9 B11 H11 . . 127.6(10) ? B6 B11 H11 . . 119.0(10) ? B10 B11 H11 . . 128.2(9) ? B7 B11 H11 . . 118.2(10) ? B5 B12 B8 . . 107.42(11) ? B5 B12 B10 . . 60.19(9) ? B8 B12 B10 . . 108.04(12) ? B5 B12 B9 . . 107.82(12) ? B8 B12 B9 . . 60.24(9) ? B10 B12 B9 . . 59.88(9) ? B5 B12 B4 . . 60.53(10) ? B8 B12 B4 . . 59.28(9) ? B10 B12 B4 . . 108.90(11) ? B9 B12 B4 . . 108.11(11) ? B5 B12 H12 . . 123.4(9) ? B8 B12 H12 . . 119.3(9) ? B10 B12 H12 . . 124.3(8) ? B9 B12 H12 . . 121.9(9) ? B4 B12 H12 . . 119.4(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 Fe3 C1 2_775 2.044(2) ? Fe3 C1 . 2.044(2) y Fe3 C2 2_775 2.045(2) ? Fe3 C2 . 2.045(2) y Fe3 B4 . 2.105(2) y Fe3 B4 2_775 2.105(2) ? Fe3 B7 . 2.111(2) y Fe3 B7 2_775 2.111(2) ? Fe3 B8 2_775 2.135(2) ? Fe3 B8 . 2.135(2) y C1 C2 . 1.616(2) y C1 B4 . 1.702(2) y C1 B5 . 1.709(2) y C1 B6 . 1.740(2) y C1 H1 . 0.94(2) ? C2 B7 . 1.698(2) y C2 B11 . 1.714(2) y C2 B6 . 1.732(2) y C2 H2 . 0.94(2) ? B4 B8 . 1.773(2) y B4 B5 . 1.804(2) y B4 B12 . 1.808(2) y B4 H4 . 1.11(2) ? B5 B6 . 1.765(2) y B5 B12 . 1.771(3) y B5 B10 . 1.780(3) y B5 H5 . 1.11(2) ? B7 B8 . 1.763(2) y B7 B11 . 1.799(2) y B7 B9 . 1.803(2) y B7 H7 . 1.03(2) ? S8 C81 . 1.795(2) ? S8 C82 . 1.795(2) ? S8 B8 . 1.919(2) y B6 B10 . 1.757(3) y B6 B11 . 1.765(3) y B6 H6 . 1.04(2) ? B8 B12 . 1.777(2) y B8 B9 . 1.789(2) y C81 H81A . 0.948(10) ? C81 H81B . 0.948(10) ? C81 H81C . 0.948(10) ? C82 H82A . 0.925(11) ? C82 H82B . 0.925(11) ? C82 H82C . 0.925(11) ? B9 B11 . 1.761(2) y B9 B10 . 1.780(2) y B9 B12 . 1.787(2) y B9 H9 . 1.08(2) ? B10 B11 . 1.778(3) y B10 B12 . 1.778(2) y B10 H10 . 1.08(2) ? B11 H11 . 1.05(2) ? B12 H12 . 1.05(2) ?