#------------------------------------------------------------------------------ #$Date: 2013-12-28 15:58:47 +0200 (Sat, 28 Dec 2013) $ #$Revision: 91933 $ #$URL: file:///home/coder/svn-repositories/cod/cif/2/20/06/2200674.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_2200674 loop_ _publ_author_name 'Niemeyer, Mark' _publ_section_title ; A trigonal-bipyramidal coordinated ytterbium(III) alkyl: tris(trimethylsilylmethyl)bis(tetrahydrofuran-O)ytterbium(III) ; _journal_issue 12 _journal_name_full 'Acta Crystallographica Section E' _journal_page_first m553 _journal_page_last m555 _journal_volume 57 _journal_year 2001 _chemical_formula_iupac '[Yb(CH~2~SiC~3~H~9~)~3~(C~4~H~8~O)~2~]' _chemical_formula_moiety 'C20 H49 O2 Si3 Yb' _chemical_formula_sum 'C20 H49 O2 Si3 Yb' _chemical_formula_weight 578.90 _chemical_melting_point_lt 293 _chemical_name_systematic ; Tris(trimethylsilylmethyl)bis(tetrahydrofuran-O)ytterbium(III) ; _space_group_IT_number 14 _symmetry_cell_setting monoclinic _symmetry_space_group_name_Hall '-P 2yn' _symmetry_space_group_name_H-M 'P 1 21/n 1' _audit_creation_method SHELXL-97 _cell_angle_alpha 90.00 _cell_angle_beta 95.293(10) _cell_angle_gamma 90.00 _cell_formula_units_Z 4 _cell_length_a 10.6627(12) _cell_length_b 18.549(2) _cell_length_c 14.742(2) _cell_measurement_reflns_used 36 _cell_measurement_temperature 173(2) _cell_measurement_theta_max 12.1 _cell_measurement_theta_min 6.0 _cell_volume 2903.3(6) _computing_cell_refinement P3 _computing_data_collection 'P3 (Siemens 1989)' _computing_data_reduction 'XDISK (Siemens 1989)' _computing_molecular_graphics 'SHELXTL (Sheldrick, 1998)' _computing_publication_material 'SHELXTL (Sheldrick, 1998)' _computing_structure_refinement 'SHELXL97 (Sheldrick, 1997)' _computing_structure_solution 'SHELXS97 (Sheldrick, 1997)' _diffrn_ambient_temperature 173(2) _diffrn_measured_fraction_theta_full .921 _diffrn_measured_fraction_theta_max .921 _diffrn_measurement_device_type 'Rebuild Syntex P2~1~/Siemens P3 four-circle diffractometer' _diffrn_measurement_method 'Wyckoff scans' _diffrn_radiation_monochromator graphite _diffrn_radiation_source 'fine-focus sealed tube' _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength .71073 _diffrn_reflns_av_R_equivalents .058 _diffrn_reflns_av_sigmaI/netI .070 _diffrn_reflns_limit_h_max 14 _diffrn_reflns_limit_h_min -9 _diffrn_reflns_limit_k_max 25 _diffrn_reflns_limit_k_min -21 _diffrn_reflns_limit_l_max 20 _diffrn_reflns_limit_l_min -20 _diffrn_reflns_number 7465 _diffrn_reflns_theta_full 29.00 _diffrn_reflns_theta_max 29.00 _diffrn_reflns_theta_min 1.77 _diffrn_standards_decay_% 2 _diffrn_standards_interval_count 198 _diffrn_standards_number 2 _exptl_absorpt_coefficient_mu 3.356 _exptl_absorpt_correction_T_max .818 _exptl_absorpt_correction_T_min .467 _exptl_absorpt_correction_type psi-scan _exptl_absorpt_process_details 'North et al. (1968)' _exptl_crystal_colour orange _exptl_crystal_density_diffrn 1.324 _exptl_crystal_density_method 'not measured' _exptl_crystal_description block _exptl_crystal_F_000 1188 _exptl_crystal_size_max .40 _exptl_crystal_size_mid .35 _exptl_crystal_size_min .20 _refine_diff_density_max 1.227 _refine_diff_density_min -1.069 _refine_ls_extinction_method none _refine_ls_goodness_of_fit_ref 1.153 _refine_ls_hydrogen_treatment refU _refine_ls_matrix_type full _refine_ls_number_parameters 245 _refine_ls_number_reflns 7113 _refine_ls_number_restraints 7 _refine_ls_restrained_S_all 1.152 _refine_ls_R_factor_all .094 _refine_ls_R_factor_gt .055 _refine_ls_shift/su_max .002 _refine_ls_shift/su_mean <0.001 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'calc w=1/[\s^2^(Fo^2^)+(0.0520P)^2^] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_ref .127 _reflns_number_gt 5064 _reflns_number_total 7113 _reflns_threshold_expression I>2\s(I) _[local]_cod_data_source_file cv6074.cif _[local]_cod_data_source_block I _[local]_cod_cif_authors_sg_H-M 'P 21/n' _cod_depositor_comments ; The following automatic conversions were performed: '_chemical_melting_point' tag was changed to '_chemical_melting_point_lt' since the value was specified 'less than' ('<') a certain temperature. The value '<293K' was changed to '293' - it should be numeric and without a unit designator. Automatic conversion script Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana The following automatic conversions were performed: '_chemical_melting_point' tag was changed to '_chemical_melting_point_lt' since the value was specified 'less than' ('<') a certain temperature. The value '<293K' was changed to '293' - it should be numeric and without a unit designator. Automatic conversion script Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana ; _cod_database_code 2200674 loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x+1/2, y+1/2, -z+1/2' '-x, -y, -z' '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_disorder_assembly _atom_site_disorder_group _atom_site_type_symbol Yb .57857(3) .991285(13) .800031(19) .02393(9) Uani d . 1 . . Yb C1 .5584(7) 1.0899(3) .8998(5) .0320(15) Uani d . 1 . . C H1A .4683 1.1034 .8908 .057(12) Uiso calc R 1 . . H H1B .5710 1.0688 .9617 .057(12) Uiso calc R 1 . . H C2 .4093(7) .9102(3) .8101(5) .0304(15) Uani d . 1 . . C H2A .4263 .8841 .8685 .057(12) Uiso calc R 1 . . H H2B .3333 .9400 .8158 .057(12) Uiso calc R 1 . . H C3 .7231(8) .9619(4) .6911(6) .0388(17) Uani d . 1 . . C H3A .7283 .9086 .6914 .057(12) Uiso calc R 1 . . H H3B .6796 .9753 .6312 .057(12) Uiso calc R 1 . . H O11 .4596(5) 1.0586(3) .6887(3) .0337(11) Uani d . 1 . . O O21 .7037(5) .9281(3) .9098(4) .0383(12) Uani d . 1 B . O Si11 .6424(2) 1.17531(10) .90860(15) .0331(4) Uani d . 1 . . Si Si21 .3651(2) .84187(10) .72282(14) .0321(4) Uani d . 1 . . Si Si31 .8845(2) .99302(12) .68795(16) .0426(5) Uani d . 1 . . Si C12 .3306(9) 1.0815(6) .6983(7) .056(3) Uani d . 1 . . C H12A .3292 1.1200 .7448 .070(9) Uiso calc R 1 . . H H12B .2795 1.0404 .7169 .070(9) Uiso calc R 1 . . H C13 .2801(11) 1.1090(5) .6066(7) .060(3) Uani d . 1 . . C H13A .2153 1.1466 .6119 .070(9) Uiso calc R 1 . . H H13B .2436 1.0695 .5674 .070(9) Uiso calc R 1 . . H C14 .3966(11) 1.1400(5) .5698(6) .057(3) Uani d . 1 . . C H14A .3875 1.1416 .5024 .070(9) Uiso calc R 1 . . H H14B .4151 1.1890 .5939 .070(9) Uiso calc R 1 . . H C15 .4974(10) 1.0872(4) .6047(5) .045(2) Uani d . 1 . . C H15A .5049 1.0480 .5600 .070(9) Uiso calc R 1 . . H H15B .5798 1.1118 .6154 .070(9) Uiso calc R 1 . . H C22 .7624(9) .9504(5) .9986(6) .047(2) Uani d D 1 . . C H22A .7013 .9756 1.0340 .070(9) Uiso calc R 1 A 1 H H22B .8351 .9825 .9921 .070(9) Uiso calc R 1 A 1 H C23 .8045(17) .8800(6) 1.0438(9) .050(4) Uiso d PD .65 B 1 C H23A .8815 .8877 1.0855 .070(9) Uiso calc PR .65 B 1 H H23B .7378 .8609 1.0795 .070(9) Uiso calc PR .65 B 1 H C24 .8304(14) .8281(8) .9706(9) .057(4) Uiso d PD .65 B 1 C H24A .8204 .7774 .9895 .070(9) Uiso calc PR .65 B 1 H H24B .9152 .8350 .9497 .070(9) Uiso calc PR .65 B 1 H C23A .851(3) .8916(11) 1.036(2) .077(11) Uiso d PD .35 B 2 C H23C .9350 .8953 1.0140 .070(9) Uiso calc PR .35 B 2 H H23D .8585 .8902 1.1039 .070(9) Uiso calc PR .35 B 2 H C24A .776(3) .8298(14) .9953(11) .057(7) Uiso d PD .35 B 2 C H24C .7054 .8185 1.0318 .070(9) Uiso calc PR .35 B 2 H H24D .8304 .7865 .9936 .070(9) Uiso calc PR .35 B 2 H C25 .7270(11) .8514(4) .8996(7) .062(3) Uani d D 1 . . C H25A .7523 .8416 .8379 .070(9) Uiso calc R 1 B 1 H H25B .6491 .8239 .9074 .070(9) Uiso calc R 1 B 1 H C111 .6411(9) 1.2181(5) .7931(5) .0427(19) Uani d . 1 . . C H11A .6859 1.1870 .7531 .074(7) Uiso calc R 1 . . H H11B .6830 1.2652 .7988 .074(7) Uiso calc R 1 . . H H11C .5539 1.2246 .7671 .074(7) Uiso calc R 1 . . H C112 .5733(11) 1.2444(4) .9832(6) .054(3) Uani d . 1 . . C H11D .5820 1.2278 1.0465 .074(7) Uiso calc R 1 . . H H11E .4839 1.2512 .9631 .074(7) Uiso calc R 1 . . H H11F .6179 1.2903 .9787 .074(7) Uiso calc R 1 . . H C113 .8099(9) 1.1612(5) .9564(8) .056(3) Uani d . 1 . . C H11G .8519 1.1284 .9168 .074(7) Uiso calc R 1 . . H H11H .8113 1.1402 1.0175 .074(7) Uiso calc R 1 . . H H11I .8541 1.2076 .9600 .074(7) Uiso calc R 1 . . H C211 .2164(9) .7933(5) .7404(7) .055(2) Uani d . 1 . . C H21A .2230 .7720 .8015 .074(7) Uiso calc R 1 . . H H21B .2022 .7551 .6947 .074(7) Uiso calc R 1 . . H H21C .1458 .8273 .7343 .074(7) Uiso calc R 1 . . H C212 .3441(10) .8837(5) .6066(5) .046(2) Uani d . 1 . . C H21D .4248 .9031 .5909 .074(7) Uiso calc R 1 . . H H21E .2823 .9228 .6064 .074(7) Uiso calc R 1 . . H H21F .3141 .8471 .5618 .074(7) Uiso calc R 1 . . H C213 .4881(10) .7713(5) .7193(8) .059(3) Uani d . 1 . . C H21G .5004 .7472 .7785 .074(7) Uiso calc R 1 . . H H21H .5674 .7937 .7053 .074(7) Uiso calc R 1 . . H H21I .4615 .7359 .6720 .074(7) Uiso calc R 1 . . H C311 .9790(9) .9431(5) .6078(7) .053(2) Uani d . 1 . . C H31A .9384 .9476 .5456 .074(7) Uiso calc R 1 . . H H31B .9840 .8921 .6251 .074(7) Uiso calc R 1 . . H H31C 1.0640 .9635 .6106 .074(7) Uiso calc R 1 . . H C312 .8874(12) 1.0902(5) .6561(11) .088(5) Uani d . 1 . . C H31D .8383 1.0974 .5973 .074(7) Uiso calc R 1 . . H H31E .9747 1.1054 .6515 .074(7) Uiso calc R 1 . . H H31F .8509 1.1190 .7028 .074(7) Uiso calc R 1 . . H C313 .9775(11) .9820(8) .8026(8) .092(5) Uani d . 1 . . C H31G .9415 1.0131 .8473 .074(7) Uiso calc R 1 . . H H31H 1.0654 .9957 .7977 .074(7) Uiso calc R 1 . . H H31I .9737 .9316 .8221 .074(7) Uiso calc R 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 Yb .02505(14) .02125(12) .02524(13) -.00121(13) .00097(9) -.00065(12) C1 .033(4) .028(3) .034(4) -.003(3) -.003(3) -.011(3) C2 .037(4) .024(3) .031(4) -.007(3) .007(3) .002(2) C3 .033(4) .041(4) .043(4) .001(3) .010(3) -.002(3) O11 .037(3) .038(2) .026(3) .008(2) .002(2) .009(2) O21 .040(3) .036(3) .037(3) .004(2) -.010(2) .004(2) Si11 .0357(12) .0260(8) .0368(11) -.0035(8) -.0008(9) -.0015(8) Si21 .0335(12) .0261(9) .0362(11) -.0056(8) -.0003(9) -.0020(7) Si31 .0333(11) .0465(12) .0498(12) -.0082(10) .0134(9) -.0159(10) C12 .045(6) .067(6) .057(6) .022(5) .009(5) .027(5) C13 .062(7) .055(5) .060(6) .014(5) -.012(5) .015(5) C14 .077(8) .050(5) .041(5) .013(5) -.003(5) .013(4) C15 .060(6) .049(4) .025(4) .002(4) .004(4) .008(3) C22 .044(5) .054(5) .041(5) -.003(4) -.007(4) -.001(4) C25 .083(8) .035(4) .061(6) .015(5) -.033(5) .005(4) C111 .039(5) .051(4) .037(4) -.008(4) -.001(3) .006(3) C112 .089(8) .029(4) .043(5) .003(4) .002(5) -.010(3) C113 .038(5) .048(5) .078(7) -.009(4) -.018(5) -.001(4) C211 .042(6) .056(5) .063(6) -.021(4) -.010(5) .005(4) C212 .065(6) .047(4) .027(4) -.001(4) .006(4) -.002(3) C213 .055(6) .040(4) .079(7) .009(4) -.007(5) -.021(4) C311 .043(6) .060(5) .060(6) .007(4) .021(5) -.008(4) C312 .067(9) .037(5) .166(14) -.006(5) .049(9) -.010(6) C313 .049(6) .166(14) .059(7) -.025(8) .006(5) -.043(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 Yb C1 . 2.369(6) y Yb C2 . 2.364(7) y Yb C3 . 2.389(7) y Yb O11 . 2.341(5) y Yb O21 . 2.319(5) y C1 Si11 . 1.819(7) ? C1 H1A . .9900 ? C1 H1B . .9900 ? C2 Si21 . 1.836(7) ? C2 H2A . .9900 ? C2 H2B . .9900 ? C3 Si31 . 1.820(8) ? C3 H3A . .9900 ? C3 H3B . .9900 ? O11 C15 . 1.437(9) ? O11 C12 . 1.459(11) ? O21 C25 . 1.453(9) ? O21 C22 . 1.458(10) ? Si11 C113 . 1.877(10) ? Si11 C111 . 1.878(8) ? Si11 C112 . 1.883(9) ? Si21 C213 . 1.857(9) ? Si21 C211 . 1.863(9) ? Si21 C212 . 1.875(8) ? Si31 C312 . 1.864(10) ? Si31 C311 . 1.867(8) ? Si31 C313 . 1.890(12) ? C12 C13 . 1.499(13) ? C12 H12A . .9900 ? C12 H12B . .9900 ? C13 C14 . 1.514(15) ? C13 H13A . .9900 ? C13 H13B . .9900 ? C14 C15 . 1.508(12) ? C14 H14A . .9900 ? C14 H14B . .9900 ? C15 H15A . .9900 ? C15 H15B . .9900 ? C22 C23A . 1.512(11) ? C22 C23 . 1.514(10) ? C22 H22A . .9900 ? C22 H22B . .9900 ? C23 C24 . 1.491(16) ? C23 H23A . .9900 ? C23 H23B . .9900 ? C24 C25 . 1.511(10) ? C24 H24A . .9900 ? C24 H24B . .9900 ? C23A C24A . 1.491(17) ? C23A H23C . .9900 ? C23A H23D . .9900 ? C24A C25 . 1.513(11) ? C24A H24C . .9900 ? C24A H24D . .9900 ? C25 H25A . .9900 ? C25 H25B . .9900 ? C111 H11A . .9800 ? C111 H11B . .9800 ? C111 H11C . .9800 ? C112 H11D . .9800 ? C112 H11E . .9800 ? C112 H11F . .9800 ? C113 H11G . .9800 ? C113 H11H . .9800 ? C113 H11I . .9800 ? C211 H21A . .9800 ? C211 H21B . .9800 ? C211 H21C . .9800 ? C212 H21D . .9800 ? C212 H21E . .9800 ? C212 H21F . .9800 ? C213 H21G . .9800 ? C213 H21H . .9800 ? C213 H21I . .9800 ? C311 H31A . .9800 ? C311 H31B . .9800 ? C311 H31C . .9800 ? C312 H31D . .9800 ? C312 H31E . .9800 ? C312 H31F . .9800 ? C313 H31G . .9800 ? C313 H31H . .9800 ? C313 H31I . .9800 ? loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C C .0033 .0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' H H .0000 .0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' O O .0106 .0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Si Si .0817 .0704 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Yb Yb -.3850 5.5486 '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_publ_flag O11 Yb O21 177.49(19) y C1 Yb O11 87.1(2) y C1 Yb O21 92.1(2) y C2 Yb O11 90.9(2) y C2 Yb O21 91.6(2) y C3 Yb O11 89.5(2) y C3 Yb O21 89.3(3) y C1 Yb C2 109.8(2) y C1 Yb C3 134.0(3) y C2 Yb C3 116.1(3) y Yb C1 Si11 130.1(4) y Yb C2 Si21 122.9(3) y Yb C3 Si31 128.0(4) y Si11 C1 H1A 104.7 ? Yb C1 H1A 104.7 ? Si11 C1 H1B 104.7 ? Yb C1 H1B 104.7 ? H1A C1 H1B 105.7 ? Si21 C2 H2A 106.6 ? Yb C2 H2A 106.6 ? Si21 C2 H2B 106.6 ? Yb C2 H2B 106.6 ? H2A C2 H2B 106.6 ? Si31 C3 H3A 105.3 ? Yb C3 H3A 105.3 ? Si31 C3 H3B 105.3 ? Yb C3 H3B 105.3 ? H3A C3 H3B 106.0 ? C15 O11 C12 108.6(6) ? C15 O11 Yb 128.6(5) ? C12 O11 Yb 122.8(4) ? C25 O21 C22 107.9(6) ? C25 O21 Yb 121.0(5) ? C22 O21 Yb 130.9(4) ? C1 Si11 C113 110.5(4) ? C1 Si11 C111 110.0(4) ? C113 Si11 C111 109.1(5) ? C1 Si11 C112 114.7(4) ? C113 Si11 C112 106.6(5) ? C111 Si11 C112 105.7(4) ? C2 Si21 C213 111.7(4) ? C2 Si21 C211 113.8(4) ? C213 Si21 C211 106.0(5) ? C2 Si21 C212 110.8(3) ? C213 Si21 C212 106.9(5) ? C211 Si21 C212 107.2(4) ? C3 Si31 C312 110.5(5) ? C3 Si31 C311 115.2(4) ? C312 Si31 C311 107.3(5) ? C3 Si31 C313 111.2(5) ? C312 Si31 C313 108.1(7) ? C311 Si31 C313 104.1(5) ? O11 C12 C13 105.9(8) ? O11 C12 H12A 110.6 ? C13 C12 H12A 110.6 ? O11 C12 H12B 110.6 ? C13 C12 H12B 110.6 ? H12A C12 H12B 108.7 ? C12 C13 C14 102.4(9) ? C12 C13 H13A 111.3 ? C14 C13 H13A 111.3 ? C12 C13 H13B 111.3 ? C14 C13 H13B 111.3 ? H13A C13 H13B 109.2 ? C15 C14 C13 102.4(7) ? C15 C14 H14A 111.3 ? C13 C14 H14A 111.3 ? C15 C14 H14B 111.3 ? C13 C14 H14B 111.3 ? H14A C14 H14B 109.2 ? O11 C15 C14 106.6(7) ? O11 C15 H15A 110.4 ? C14 C15 H15A 110.4 ? O11 C15 H15B 110.4 ? C14 C15 H15B 110.4 ? H15A C15 H15B 108.6 ? O21 C22 C23A 109.1(13) ? O21 C22 C23 103.6(8) ? C23A C22 C23 21.2(15) ? O21 C22 H22A 111.0 ? C23A C22 H22A 124.3 ? C23 C22 H22A 111.0 ? O21 C22 H22B 111.0 ? C23A C22 H22B 90.2 ? C23 C22 H22B 111.0 ? H22A C22 H22B 109.0 ? C24 C23 C22 107.8(10) ? C24 C23 H23A 110.1 ? C22 C23 H23A 110.1 ? C24 C23 H23B 110.1 ? C22 C23 H23B 110.1 ? H23A C23 H23B 108.5 ? C23 C24 C25 98.3(10) ? C23 C24 H24A 112.1 ? C25 C24 H24A 112.1 ? C23 C24 H24B 112.1 ? C25 C24 H24B 112.1 ? H24A C24 H24B 109.8 ? C24A C23A C22 96.6(16) ? C24A C23A H23C 112.4 ? C22 C23A H23C 112.4 ? C24A C23A H23D 112.4 ? C22 C23A H23D 112.4 ? H23C C23A H23D 110.0 ? C23A C24A C25 107.5(18) ? C23A C24A H24C 110.2 ? C25 C24A H24C 110.2 ? C23A C24A H24D 110.2 ? C25 C24A H24D 110.2 ? H24C C24A H24D 108.5 ? O21 C25 C24 109.2(9) ? O21 C25 C24A 102.2(13) ? C24 C25 C24A 27.2(12) ? O21 C25 H25A 109.8 ? C24 C25 H25A 109.8 ? C24A C25 H25A 135.0 ? O21 C25 H25B 109.8 ? C24 C25 H25B 109.8 ? C24A C25 H25B 88.8 ? H25A C25 H25B 108.3 ? Si11 C111 H11A 109.5 ? Si11 C111 H11B 109.5 ? H11A C111 H11B 109.5 ? Si11 C111 H11C 109.5 ? H11A C111 H11C 109.5 ? H11B C111 H11C 109.5 ? Si11 C112 H11D 109.5 ? Si11 C112 H11E 109.5 ? H11D C112 H11E 109.5 ? Si11 C112 H11F 109.5 ? H11D C112 H11F 109.5 ? H11E C112 H11F 109.5 ? Si11 C113 H11G 109.5 ? Si11 C113 H11H 109.5 ? H11G C113 H11H 109.5 ? Si11 C113 H11I 109.5 ? H11G C113 H11I 109.5 ? H11H C113 H11I 109.5 ? Si21 C211 H21A 109.5 ? Si21 C211 H21B 109.5 ? H21A C211 H21B 109.5 ? Si21 C211 H21C 109.5 ? H21A C211 H21C 109.5 ? H21B C211 H21C 109.5 ? Si21 C212 H21D 109.5 ? Si21 C212 H21E 109.5 ? H21D C212 H21E 109.5 ? Si21 C212 H21F 109.5 ? H21D C212 H21F 109.5 ? H21E C212 H21F 109.5 ? Si21 C213 H21G 109.5 ? Si21 C213 H21H 109.5 ? H21G C213 H21H 109.5 ? Si21 C213 H21I 109.5 ? H21G C213 H21I 109.5 ? H21H C213 H21I 109.5 ? Si31 C311 H31A 109.5 ? Si31 C311 H31B 109.5 ? H31A C311 H31B 109.5 ? Si31 C311 H31C 109.5 ? H31A C311 H31C 109.5 ? H31B C311 H31C 109.5 ? Si31 C312 H31D 109.5 ? Si31 C312 H31E 109.5 ? H31D C312 H31E 109.5 ? Si31 C312 H31F 109.5 ? H31D C312 H31F 109.5 ? H31E C312 H31F 109.5 ? Si31 C313 H31G 109.5 ? Si31 C313 H31H 109.5 ? H31G C313 H31H 109.5 ? Si31 C313 H31I 109.5 ? H31G C313 H31I 109.5 ? H31H C313 H31I 109.5 ? _cod_database_fobs_code 2200674 _journal_paper_doi 10.1107/S1600536801018566