#------------------------------------------------------------------------------
#$Date: 2025-04-05 06:21:06 +0300 (Sat, 05 Apr 2025) $
#$Revision: 298938 $
#$URL: file:///home/coder/svn-repositories/cod/cif/7/71/76/7717662.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_7717662
loop_
_publ_author_name
'Hashimoto, Hisako'
'Matsuo, Satomi'
'Odagiri, Yuto'
'Tobita, Hiromi'
_publ_section_title
;
 A hydrogen-bridged bis(silylene) complex as a platform for small molecule
 activation via adjacent metal-ligand cooperation.
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              915
_journal_page_last               919
_journal_paper_doi               10.1039/d4dt03226h
_journal_volume                  54
_journal_year                    2025
_chemical_formula_moiety         'C20 H36 O3 Si2 W, 0.5(C12 H18)'
_chemical_formula_sum            'C26 H45 O3 Si2 W'
_chemical_formula_weight         645.65
_chemical_properties_physical
Air-sensitive,Moisture-sensitive,Oxygen-sensitive
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2024-11-18 deposited with the CCDC.	2024-12-10 downloaded from the CCDC.
;
_cell_angle_alpha                94.187(3)
_cell_angle_beta                 100.584(4)
_cell_angle_gamma                102.745(3)
_cell_formula_units_Z            2
_cell_length_a                   8.6680(8)
_cell_length_b                   9.9938(5)
_cell_length_c                   17.0474(15)
_cell_measurement_reflns_used    8076
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.38
_cell_measurement_theta_min      2.98
_cell_volume                     1405.90(19)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       PROCESS-AUTO
_computing_data_reduction        'teXsan Ver.1.11'
_computing_molecular_graphics    'Yadokari-XG2009(Wakita, Nemoto et al.,2009)'
_computing_publication_material  'Yadokari-XG2009(Wakita, Nemoto et al.,2009)'
_computing_structure_refinement
;
'SHELXL-97 (Sheldrick, 1997)', 'SHELXL-2018/3 (Sheldrick, 2018)'
;
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.957
_diffrn_measured_fraction_theta_max 0.945
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID Imaging Plate'
_diffrn_measurement_method       ω
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotation-anode X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0976
_diffrn_reflns_av_unetI/netI     0.0956
_diffrn_reflns_Laue_measured_fraction_full 0.957
_diffrn_reflns_Laue_measured_fraction_max 0.945
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            12190
_diffrn_reflns_point_group_measured_fraction_full 0.957
_diffrn_reflns_point_group_measured_fraction_max 0.945
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.417
_diffrn_reflns_theta_min         2.306
_exptl_absorpt_coefficient_mu    4.217
_exptl_absorpt_correction_T_max  0.7860
_exptl_absorpt_correction_T_min  0.6316
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'NUMABS (Higashi, 1999),ABSCOR (Higashi, 1995)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.525
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             654
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.06
_refine_diff_density_max         2.297
_refine_diff_density_min         -3.192
_refine_diff_density_rms         0.259
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.212
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     304
_refine_ls_number_reflns         6046
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.212
_refine_ls_R_factor_all          0.0942
_refine_ls_R_factor_gt           0.0713
_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/[σ²(Fo²)+(0.0392P)²+22.2410P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1480
_refine_ls_wR_factor_ref         0.1551
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5141
_reflns_number_total             6046
_reflns_threshold_expression     'I > 2σ(I)'
_cod_data_source_file            d4dt03226h2.cif
_cod_data_source_block           yt14
_cod_depositor_comments
'Adding full bibliography for 7717662--7717666.cif.'
_cod_database_code               7717662
_shelx_shelxl_version_number     2018/3
_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   0.632
_shelx_estimated_absorpt_t_max   0.786
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
W1 W 0.04267(5) 0.19953(4) 0.30601(3) 0.01583(13) Uani 1 1 d . . . . .
Si1 Si 0.1699(3) 0.1374(3) 0.19198(19) 0.0218(6) Uani 1 1 d . . . . .
Si2 Si 0.3050(3) 0.3639(3) 0.29587(18) 0.0199(6) Uani 1 1 d . . . . .
C1 C -0.0350(12) 0.3660(11) 0.2945(7) 0.022(2) Uani 1 1 d . . . . .
O1 O -0.0995(10) 0.4595(9) 0.2906(6) 0.040(2) Uani 1 1 d . . . . .
C2 C -0.1233(12) 0.1414(11) 0.2090(7) 0.023(2) Uani 1 1 d . . . . .
O2 O -0.2334(9) 0.1015(10) 0.1538(5) 0.039(2) Uani 1 1 d . . . . .
C3 C 0.1490(12) 0.0667(11) 0.4037(7) 0.021(2) Uani 1 1 d . . . . .
C4 C -0.0099(12) -0.0124(10) 0.3596(6) 0.019(2) Uani 1 1 d . . . . .
C5 C -0.1251(12) 0.0630(11) 0.3772(7) 0.022(2) Uani 1 1 d . . . . .
C6 C -0.0435(13) 0.1839(11) 0.4296(6) 0.022(2) Uani 1 1 d . . . . .
C7 C 0.1232(13) 0.1872(11) 0.4474(7) 0.023(2) Uani 1 1 d . . . . .
C8 C 0.2978(13) 0.0143(12) 0.4162(8) 0.030(3) Uani 1 1 d . . . . .
H8 H 0.382045 0.077932 0.456711 0.045 Uiso 1 1 calc R U . . .
H8A H 0.335009 0.007544 0.365471 0.045 Uiso 1 1 calc R U . . .
H8B H 0.274642 -0.077203 0.434697 0.045 Uiso 1 1 calc R U . . .
C9 C -0.0479(14) -0.1510(12) 0.3127(8) 0.031(3) Uani 1 1 d . . . . .
H9 H -0.063808 -0.222455 0.348783 0.046 Uiso 1 1 calc R U . . .
H9A H 0.041801 -0.159354 0.286547 0.046 Uiso 1 1 calc R U . . .
H9B H -0.146780 -0.162518 0.271690 0.046 Uiso 1 1 calc R U . . .
C10 C -0.3077(13) 0.0143(12) 0.3489(8) 0.030(3) Uani 1 1 d . . . . .
H10 H -0.356211 0.094019 0.350352 0.046 Uiso 1 1 calc R U . . .
H10A H -0.351454 -0.050355 0.384441 0.046 Uiso 1 1 calc R U . . .
H10B H -0.333067 -0.032096 0.293875 0.046 Uiso 1 1 calc R U . . .
C11 C -0.1177(14) 0.2865(12) 0.4677(7) 0.028(2) Uani 1 1 d . . . . .
H11 H -0.227497 0.278224 0.437163 0.041 Uiso 1 1 calc R U . . .
H11A H -0.052392 0.380024 0.467734 0.041 Uiso 1 1 calc R U . . .
H11B H -0.121858 0.268538 0.523099 0.041 Uiso 1 1 calc R U . . .
C12 C 0.2484(14) 0.2839(13) 0.5085(7) 0.032(3) Uani 1 1 d . . . . .
H12 H 0.231495 0.377475 0.506451 0.048 Uiso 1 1 calc R U . . .
H12A H 0.355388 0.282611 0.497774 0.048 Uiso 1 1 calc R U . . .
H12B H 0.241717 0.255996 0.561944 0.048 Uiso 1 1 calc R U . . .
C13 C 0.2429(16) -0.0268(12) 0.1853(8) 0.037(3) Uani 1 1 d . . . . .
H13 H 0.312464 -0.022902 0.145822 0.056 Uiso 1 1 calc R U . . .
H13A H 0.149883 -0.106142 0.168656 0.056 Uiso 1 1 calc R U . . .
H13B H 0.304376 -0.036694 0.238001 0.056 Uiso 1 1 calc R U . . .
C14 C 0.0894(15) 0.1585(14) 0.0845(7) 0.036(3) Uani 1 1 d . . . . .
H14 H 0.071257 0.251560 0.081516 0.054 Uiso 1 1 calc R U . . .
H14A H -0.012857 0.089880 0.064168 0.054 Uiso 1 1 calc R U . . .
H14B H 0.167889 0.145107 0.051767 0.054 Uiso 1 1 calc R U . . .
C15 C 0.3299(13) 0.5475(11) 0.2650(7) 0.026(2) Uani 1 1 d . . . . .
C16 C 0.4915(13) 0.3773(12) 0.3754(7) 0.028(2) Uani 1 1 d . . . . .
H16 H 0.489163 0.287403 0.395149 0.042 Uiso 1 1 calc R U . . .
H16A H 0.494821 0.446215 0.420034 0.042 Uiso 1 1 calc R U . . .
H16B H 0.587741 0.405409 0.352418 0.042 Uiso 1 1 calc R U . . .
C17 C 0.2938(16) 0.6387(12) 0.3336(8) 0.036(3) Uani 1 1 d . . . . .
H17 H 0.310350 0.734426 0.321109 0.055 Uiso 1 1 calc R U . . .
H17A H 0.366741 0.634914 0.384166 0.055 Uiso 1 1 calc R U . . .
H17B H 0.181598 0.604608 0.338776 0.055 Uiso 1 1 calc R U . . .
C18 C 0.5021(14) 0.6132(13) 0.2539(9) 0.038(3) Uani 1 1 d . . . . .
H18 H 0.514045 0.581328 0.200056 0.057 Uiso 1 1 calc R U . . .
H18A H 0.581391 0.585823 0.294372 0.057 Uiso 1 1 calc R U . . .
H18B H 0.520000 0.714002 0.260112 0.057 Uiso 1 1 calc R U . . .
C19 C 0.2093(15) 0.5480(13) 0.1870(8) 0.036(3) Uani 1 1 d . . . . .
H19 H 0.223767 0.642239 0.172107 0.054 Uiso 1 1 calc R U . . .
H19A H 0.098793 0.515148 0.195064 0.054 Uiso 1 1 calc R U . . .
H19B H 0.228203 0.487102 0.143871 0.054 Uiso 1 1 calc R U . . .
O3 O 0.3536(8) 0.2682(7) 0.2143(5) 0.0244(17) Uani 1 1 d . . . . .
C20 C 0.4930(15) 0.2843(16) 0.1747(8) 0.042(3) Uani 1 1 d . . . . .
H20 H 0.497135 0.193826 0.149975 0.064 Uiso 1 1 calc R U . . .
H20A H 0.592827 0.323311 0.214676 0.064 Uiso 1 1 calc R U . . .
H20B H 0.481741 0.346318 0.133229 0.064 Uiso 1 1 calc R U . . .
C21 C 0.5064(14) 0.6389(13) 0.0279(7) 0.032(3) Uani 1 1 d . . . . .
C22 C 0.6437(14) 0.5844(13) 0.0462(7) 0.032(3) Uani 1 1 d . . . . .
C23 C 0.6382(15) 0.4491(14) 0.0188(7) 0.033(3) Uani 1 1 d . . . . .
C24 C 0.513(2) 0.7855(15) 0.0558(10) 0.053(4) Uani 1 1 d . . . . .
H24 H 0.470896 0.789466 0.105217 0.079 Uiso 1 1 calc R U . . .
H24A H 0.447278 0.823589 0.014124 0.079 Uiso 1 1 calc R U . . .
H24B H 0.625219 0.839577 0.066244 0.079 Uiso 1 1 calc R U . . .
C25 C 0.7988(17) 0.6729(17) 0.0986(9) 0.050(4) Uani 1 1 d . . . . .
H25 H 0.772678 0.729255 0.141492 0.076 Uiso 1 1 calc R U . . .
H25A H 0.858070 0.733418 0.065772 0.076 Uiso 1 1 calc R U . . .
H25B H 0.865871 0.613130 0.122347 0.076 Uiso 1 1 calc R U . . .
C26 C 0.7899(17) 0.3923(19) 0.0372(10) 0.056(4) Uani 1 1 d . . . . .
H26 H 0.885492 0.465242 0.035941 0.084 Uiso 1 1 calc R U . . .
H26A H 0.781182 0.314556 -0.003171 0.084 Uiso 1 1 calc R U . . .
H26B H 0.800052 0.360863 0.090643 0.084 Uiso 1 1 calc R U . . .
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'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Si Si 0.0817 0.0704 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
W W -0.8490 6.8722 '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
C1 W1 C2 79.2(4) . . ?
C1 W1 C5 106.3(4) . . ?
C2 W1 C5 89.7(4) . . ?
C1 W1 C4 141.9(4) . . ?
C2 W1 C4 95.9(4) . . ?
C5 W1 C4 35.7(4) . . ?
C1 W1 C6 89.3(4) . . ?
C2 W1 C6 116.7(4) . . ?
C5 W1 C6 34.9(4) . . ?
C4 W1 C6 59.0(4) . . ?
C1 W1 C3 142.7(4) . . ?
C2 W1 C3 130.2(4) . . ?
C5 W1 C3 59.0(4) . . ?
C4 W1 C3 36.0(3) . . ?
C6 W1 C3 58.6(4) . . ?
C1 W1 C7 107.4(4) . . ?
C2 W1 C7 147.6(4) . . ?
C5 W1 C7 57.9(4) . . ?
C4 W1 C7 58.9(4) . . ?
C6 W1 C7 34.5(4) . . ?
C3 W1 C7 35.3(4) . . ?
C1 W1 Si1 112.6(3) . . ?
C2 W1 Si1 70.8(3) . . ?
C5 W1 Si1 131.5(3) . . ?
C4 W1 Si1 100.9(3) . . ?
C6 W1 Si1 158.1(3) . . ?
C3 W1 Si1 100.3(3) . . ?
C7 W1 Si1 129.8(3) . . ?
C1 W1 Si2 81.2(3) . . ?
C2 W1 Si2 117.8(3) . . ?
C5 W1 Si2 152.5(3) . . ?
C4 W1 Si2 131.8(3) . . ?
C6 W1 Si2 121.4(3) . . ?
C3 W1 Si2 98.8(2) . . ?
C7 W1 Si2 94.7(3) . . ?
Si1 W1 Si2 63.83(9) . . ?
O3 Si1 C14 101.2(5) . . ?
O3 Si1 C13 102.7(5) . . ?
C14 Si1 C13 104.4(6) . . ?
O3 Si1 W1 100.3(3) . . ?
C14 Si1 W1 123.2(4) . . ?
C13 Si1 W1 120.9(4) . . ?
O3 Si1 Si2 42.0(3) . . ?
C14 Si1 Si2 118.5(4) . . ?
C13 Si1 Si2 126.8(5) . . ?
W1 Si1 Si2 58.60(9) . . ?
O3 Si2 C16 100.0(5) . . ?
O3 Si2 C15 103.6(5) . . ?
C16 Si2 C15 103.7(5) . . ?
O3 Si2 W1 98.9(2) . . ?
C16 Si2 W1 119.2(4) . . ?
C15 Si2 W1 126.6(3) . . ?
O3 Si2 Si1 41.6(2) . . ?
C16 Si2 Si1 122.5(4) . . ?
C15 Si2 Si1 122.9(4) . . ?
W1 Si2 Si1 57.57(9) . . ?
O1 C1 W1 171.7(9) . . ?
O2 C2 W1 174.4(10) . . ?
C7 C3 C4 106.7(9) . . ?
C7 C3 C8 126.8(10) . . ?
C4 C3 C8 125.0(10) . . ?
C7 C3 W1 73.1(6) . . ?
C4 C3 W1 70.9(6) . . ?
C8 C3 W1 132.3(8) . . ?
C5 C4 C3 106.8(9) . . ?
C5 C4 C9 126.2(9) . . ?
C3 C4 C9 126.8(10) . . ?
C5 C4 W1 71.6(6) . . ?
C3 C4 W1 73.2(6) . . ?
C9 C4 W1 125.2(8) . . ?
C6 C5 C4 109.3(9) . . ?
C6 C5 C10 125.3(10) . . ?
C4 C5 C10 125.2(9) . . ?
C6 C5 W1 73.7(6) . . ?
C4 C5 W1 72.8(5) . . ?
C10 C5 W1 123.6(8) . . ?
C5 C6 C7 108.6(9) . . ?
C5 C6 C11 127.1(10) . . ?
C7 C6 C11 124.0(10) . . ?
C5 C6 W1 71.4(6) . . ?
C7 C6 W1 74.2(6) . . ?
C11 C6 W1 124.9(8) . . ?
C6 C7 C3 108.6(9) . . ?
C6 C7 C12 126.5(10) . . ?
C3 C7 C12 124.4(10) . . ?
C6 C7 W1 71.3(6) . . ?
C3 C7 W1 71.6(6) . . ?
C12 C7 W1 129.6(8) . . ?
C19 C15 C18 108.8(10) . . ?
C19 C15 C17 109.1(10) . . ?
C18 C15 C17 107.5(10) . . ?
C19 C15 Si2 110.6(8) . . ?
C18 C15 Si2 113.7(8) . . ?
C17 C15 Si2 107.1(8) . . ?
C20 O3 Si1 128.8(7) . . ?
C20 O3 Si2 134.8(7) . . ?
Si1 O3 Si2 96.4(4) . . ?
C22 C21 C23 118.2(12) . 2_665 ?
C22 C21 C24 120.9(12) . . ?
C23 C21 C24 120.9(12) 2_665 . ?
C23 C22 C21 120.8(11) . . ?
C23 C22 C25 119.2(12) . . ?
C21 C22 C25 120.0(12) . . ?
C22 C23 C21 121.0(12) . 2_665 ?
C22 C23 C26 120.3(12) . . ?
C21 C23 C26 118.7(13) 2_665 . ?
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
W1 C1 1.937(11) . ?
W1 C2 1.939(11) . ?
W1 C5 2.337(10) . ?
W1 C4 2.353(10) . ?
W1 C6 2.367(11) . ?
W1 C3 2.384(10) . ?
W1 C7 2.404(11) . ?
W1 Si1 2.509(3) . ?
W1 Si2 2.537(3) . ?
Si1 O3 1.782(7) . ?
Si1 C14 1.882(13) . ?
Si1 C13 1.888(12) . ?
Si1 Si2 2.668(4) . ?
Si2 O3 1.795(8) . ?
Si2 C16 1.882(11) . ?
Si2 C15 1.922(12) . ?
C1 O1 1.190(14) . ?
C2 O2 1.185(13) . ?
C3 C7 1.451(15) . ?
C3 C4 1.463(14) . ?
C3 C8 1.481(15) . ?
C4 C5 1.436(15) . ?
C4 C9 1.486(15) . ?
C5 C6 1.411(14) . ?
C5 C10 1.524(15) . ?
C6 C7 1.414(15) . ?
C6 C11 1.494(15) . ?
C7 C12 1.473(15) . ?
C15 C19 1.535(16) . ?
C15 C18 1.544(16) . ?
C15 C17 1.549(16) . ?
O3 C20 1.474(13) . ?
C21 C22 1.409(18) . ?
C21 C23 1.422(17) 2_665 ?
C21 C24 1.491(18) . ?
C22 C23 1.386(18) . ?
C22 C25 1.519(17) . ?
C23 C26 1.535(17) . ?
loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion
_geom_torsion_site_symmetry_1
_geom_torsion_site_symmetry_2
_geom_torsion_site_symmetry_3
_geom_torsion_site_symmetry_4
_geom_torsion_publ_flag
C7 C3 C4 C5 0.7(11) . . . . ?
C8 C3 C4 C5 167.1(10) . . . . ?
W1 C3 C4 C5 -64.1(7) . . . . ?
C7 C3 C4 C9 -173.5(10) . . . . ?
C8 C3 C4 C9 -7.1(18) . . . . ?
W1 C3 C4 C9 121.7(11) . . . . ?
C7 C3 C4 W1 64.8(7) . . . . ?
C8 C3 C4 W1 -128.8(11) . . . . ?
C3 C4 C5 C6 0.1(12) . . . . ?
C9 C4 C5 C6 174.3(11) . . . . ?
W1 C4 C5 C6 -65.1(8) . . . . ?
C3 C4 C5 C10 -175.5(10) . . . . ?
C9 C4 C5 C10 -1.3(18) . . . . ?
W1 C4 C5 C10 119.3(11) . . . . ?
C3 C4 C5 W1 65.2(7) . . . . ?
C9 C4 C5 W1 -120.6(11) . . . . ?
C4 C5 C6 C7 -0.8(13) . . . . ?
C10 C5 C6 C7 174.7(10) . . . . ?
W1 C5 C6 C7 -65.4(8) . . . . ?
C4 C5 C6 C11 -175.3(10) . . . . ?
C10 C5 C6 C11 0.2(18) . . . . ?
W1 C5 C6 C11 120.1(11) . . . . ?
C4 C5 C6 W1 64.6(7) . . . . ?
C10 C5 C6 W1 -119.9(11) . . . . ?
C5 C6 C7 C3 1.3(12) . . . . ?
C11 C6 C7 C3 176.0(10) . . . . ?
W1 C6 C7 C3 -62.3(8) . . . . ?
C5 C6 C7 C12 -170.5(11) . . . . ?
C11 C6 C7 C12 4.2(18) . . . . ?
W1 C6 C7 C12 125.9(12) . . . . ?
C5 C6 C7 W1 63.6(8) . . . . ?
C11 C6 C7 W1 -121.7(11) . . . . ?
C4 C3 C7 C6 -1.2(12) . . . . ?
C8 C3 C7 C6 -167.3(11) . . . . ?
W1 C3 C7 C6 62.1(8) . . . . ?
C4 C3 C7 C12 170.8(10) . . . . ?
C8 C3 C7 C12 4.7(18) . . . . ?
W1 C3 C7 C12 -125.9(11) . . . . ?
C4 C3 C7 W1 -63.3(7) . . . . ?
C8 C3 C7 W1 130.6(11) . . . . ?
C14 Si1 O3 C20 -59.2(12) . . . . ?
C13 Si1 O3 C20 48.5(12) . . . . ?
W1 Si1 O3 C20 173.7(10) . . . . ?
Si2 Si1 O3 C20 -179.6(13) . . . . ?
C14 Si1 O3 Si2 120.4(5) . . . . ?
C13 Si1 O3 Si2 -131.9(5) . . . . ?
W1 Si1 O3 Si2 -6.7(4) . . . . ?
C16 Si2 O3 C20 -51.9(13) . . . . ?
C15 Si2 O3 C20 54.9(12) . . . . ?
W1 Si2 O3 C20 -173.9(11) . . . . ?
Si1 Si2 O3 C20 179.6(14) . . . . ?
C16 Si2 O3 Si1 128.5(5) . . . . ?
C15 Si2 O3 Si1 -124.7(4) . . . . ?
W1 Si2 O3 Si1 6.6(4) . . . . ?
C23 C21 C22 C23 0.5(19) 2_665 . . . ?
C24 C21 C22 C23 -178.7(12) . . . . ?
C23 C21 C22 C25 -177.6(11) 2_665 . . . ?
C24 C21 C22 C25 3.2(18) . . . . ?
C21 C22 C23 C21 -1(2) . . . 2_665 ?
C25 C22 C23 C21 177.6(11) . . . 2_665 ?
C21 C22 C23 C26 178.3(12) . . . . ?
C25 C22 C23 C26 -3.6(18) . . . . ?
