# Electronic Supplementary Material (ESI) for Organic Chemistry Frontiers.
# This journal is © the Partner Organisations 2023

####################################################################### 
# 
# This file contains crystal structure data downloaded from the 
# Cambridge Structural Database (CSD) hosted by the Cambridge 
# Crystallographic Data Centre (CCDC).
# 
# Full information about CCDC data access policies and citation 
# guidelines are available at http://www.ccdc.cam.ac.uk/access/V1 
# 
# Audit and citation data items may have been added by the CCDC. 
# Please retain this information to preserve the provenance of 
# this file and to allow appropriate attribution of the data. 
# 
#######################################################################

data_exp_13231
_database_code_depnum_ccdc_archive 'CCDC 2272167'
loop_
_audit_author_name
_audit_author_address
'Ximei Zhao'
;Ludong University
China
;
_audit_update_record             
;
2023-06-25 deposited with the CCDC.	2023-10-03 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-2018/3
_shelx_SHELXL_version_number     2018/3
_chemical_name_systematic        ?
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C28 H41 N O2 S Si'
_chemical_formula_weight         483.77

loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0181 0.0091 '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 0.0492 0.0322 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Si Si 0.2541 0.3302 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
S S 0.3331 0.5567 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0311 0.0180 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_H-M_alt        'P 21/n'
_space_group_name_Hall           '-P 2yn'

_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.
;

loop_
_space_group_symop_operation_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'

_cell_length_a                   14.8440(19)
_cell_length_b                   9.8188(11)
_cell_length_c                   18.983(2)
_cell_angle_alpha                90
_cell_angle_beta                 92.132(10)
_cell_angle_gamma                90
_cell_volume                     2764.8(6)
_cell_formula_units_Z            4
_cell_measurement_temperature    293(2)
_cell_measurement_reflns_used    1821
_cell_measurement_theta_min      3.7160
_cell_measurement_theta_max      69.3970

_exptl_crystal_description       BLOCK
_exptl_crystal_colour            WHITE
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_density_diffrn    1.162
_exptl_crystal_F_000             1048
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.090
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.080
_exptl_absorpt_coefficient_mu    1.630
_shelx_estimated_absorpt_T_min   0.867
_shelx_estimated_absorpt_T_max   0.881
_exptl_absorpt_correction_T_min  0.96897
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_absorpt_special_details   ?
_diffrn_ambient_temperature      293(2)
_diffrn_radiation_wavelength     1.54184
_diffrn_radiation_type           CuK\a
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini'
_diffrn_measurement_method       ?
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            9610
_diffrn_reflns_av_unetI/netI     0.0836
_diffrn_reflns_av_R_equivalents  0.0544
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_theta_min         3.714
_diffrn_reflns_theta_max         67.240
_diffrn_reflns_theta_full        67.240
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measured_fraction_theta_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_point_group_measured_fraction_full 0.999
_reflns_number_total             4960
_reflns_number_gt                2717
_reflns_threshold_expression     'I > 2σ(I)'
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_max     .
_reflns_Friedel_fraction_full    .

_reflns_special_details          
;
 Reflections were merged by SHELXL according to the crystal
 class for the calculation of statistics and refinement.
 
 _reflns_Friedel_fraction is defined as the number of unique
 Friedel pairs measured divided by the number that would be
 possible theoretically, ignoring centric projections and
 systematic absences.
;

_computing_data_collection       'CrysAlisPro 1.171.42.49 (Rigaku OD, 2022)'
_computing_cell_refinement       'CrysAlisPro 1.171.42.49 (Rigaku OD, 2022)'
_computing_data_reduction        'CrysAlisPro 1.171.42.49 (Rigaku OD, 2022)'
_computing_structure_solution    'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_molecular_graphics    ?
_computing_publication_material  ?
_refine_special_details          ?
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+(0.0399P)²] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     ?
_atom_sites_solution_secondary   ?
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    constr
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_extinction_coef       0.00123(12)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_number_reflns         4960
_refine_ls_number_parameters     306
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.1137
_refine_ls_R_factor_gt           0.0511
_refine_ls_wR_factor_ref         0.1334
_refine_ls_wR_factor_gt          0.1036
_refine_ls_goodness_of_fit_ref   1.002
_refine_ls_restrained_S_all      1.002
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000

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
S1 S 0.53821(7) 0.31536(10) 0.16965(5) 0.0717(3) Uani 1 1 d . U . . .
Si1 Si 0.46508(6) 0.74235(8) 0.37839(4) 0.0454(2) Uani 1 1 d . . . . .
N1 N 0.46064(18) 0.3589(3) 0.22393(13) 0.0551(7) Uani 1 1 d . . . . .
O1 O 0.60030(19) 0.2284(3) 0.20845(15) 0.0918(8) Uani 1 1 d . U . . .
O2 O 0.49165(19) 0.2682(3) 0.10683(13) 0.0962(10) Uani 1 1 d . . . . .
C1 C 0.5951(2) 0.4662(4) 0.14875(19) 0.0629(10) Uani 1 1 d . . . . .
C2 C 0.5643(3) 0.5466(5) 0.09346(19) 0.0770(11) Uani 1 1 d . . . . .
H2 H 0.516676 0.517312 0.064103 0.092 Uiso 1 1 calc R U . . .
C3 C 0.6048(3) 0.6714(5) 0.0818(2) 0.0874(13) Uani 1 1 d . . . . .
H3 H 0.584700 0.724417 0.043826 0.105 Uiso 1 1 calc R U . . .
C4 C 0.6741(3) 0.7183(5) 0.1255(2) 0.0811(12) Uani 1 1 d . . . . .
C5 C 0.7053(3) 0.6354(4) 0.1796(2) 0.0783(12) Uani 1 1 d . . . . .
H5 H 0.753366 0.664323 0.208705 0.094 Uiso 1 1 calc R U . . .
C6 C 0.6665(3) 0.5103(4) 0.19152(19) 0.0711(11) Uani 1 1 d . . . . .
H6 H 0.688460 0.455714 0.228330 0.085 Uiso 1 1 calc R U . . .
C7 C 0.7137(4) 0.8581(5) 0.1158(3) 0.1249(19) Uani 1 1 d . . . . .
H7A H 0.679143 0.923717 0.140845 0.187 Uiso 1 1 calc R U . . .
H7B H 0.712204 0.880617 0.066602 0.187 Uiso 1 1 calc R U . . .
H7C H 0.774947 0.858975 0.133933 0.187 Uiso 1 1 calc R U . . .
C8 C 0.4890(2) 0.4105(3) 0.29426(16) 0.0539(9) Uani 1 1 d . . . . .
H8A H 0.534728 0.480520 0.290612 0.065 Uiso 1 1 calc R U . . .
H8B H 0.512896 0.337456 0.323830 0.065 Uiso 1 1 calc R U . . .
C9 C 0.4040(2) 0.4685(3) 0.32383(16) 0.0456(7) Uani 1 1 d . . . . .
C10 C 0.3236(2) 0.3696(3) 0.31713(16) 0.0520(8) Uani 1 1 d . . . . .
H10 H 0.340049 0.278420 0.301054 0.062 Uiso 1 1 calc R U . . .
C11 C 0.3360(2) 0.4788(3) 0.26292(16) 0.0535(8) Uani 1 1 d . . . . .
H11 H 0.294157 0.556072 0.260808 0.064 Uiso 1 1 calc R U . . .
C12 C 0.3809(2) 0.4342(4) 0.19638(17) 0.0642(10) Uani 1 1 d . . . . .
H12A H 0.341485 0.375763 0.167831 0.077 Uiso 1 1 calc R U . . .
H12B H 0.398279 0.511959 0.168478 0.077 Uiso 1 1 calc R U . . .
C13 C 0.2498(2) 0.3697(3) 0.36852(17) 0.0536(9) Uani 1 1 d . . . . .
C14 C 0.1947(2) 0.4812(4) 0.38120(18) 0.0638(10) Uani 1 1 d . . . . .
H14 H 0.202183 0.560767 0.355530 0.077 Uiso 1 1 calc R U . . .
C15 C 0.1289(3) 0.4763(4) 0.4312(2) 0.0752(11) Uani 1 1 d . . . . .
H15 H 0.092783 0.551979 0.438828 0.090 Uiso 1 1 calc R U . . .
C16 C 0.1174(3) 0.3597(5) 0.4692(2) 0.0831(12) Uani 1 1 d . . . . .
H16 H 0.074117 0.356613 0.503391 0.100 Uiso 1 1 calc R U . . .
C17 C 0.1694(3) 0.2473(5) 0.4573(2) 0.0799(12) Uani 1 1 d . . . . .
H17 H 0.160529 0.167555 0.482519 0.096 Uiso 1 1 calc R U . . .
C18 C 0.2355(3) 0.2525(4) 0.40728(19) 0.0668(10) Uani 1 1 d . . . . .
H18 H 0.270763 0.175954 0.399721 0.080 Uiso 1 1 calc R U . . .
C19 C 0.4129(2) 0.5668(3) 0.38448(15) 0.0480(8) Uani 1 1 d . . . . .
H19A H 0.446534 0.519456 0.421822 0.058 Uiso 1 1 calc R U . . .
H19B H 0.352603 0.580219 0.401148 0.058 Uiso 1 1 calc R U . . .
C20 C 0.4258(2) 0.8338(3) 0.29558(16) 0.0563(9) Uani 1 1 d . . . . .
H20 H 0.362524 0.808638 0.286670 0.068 Uiso 1 1 calc R U . . .
C21 C 0.4291(3) 0.9901(3) 0.30036(19) 0.0840(13) Uani 1 1 d . . . . .
H21A H 0.490481 1.019337 0.307232 0.126 Uiso 1 1 calc R U . . .
H21B H 0.394699 1.019960 0.339344 0.126 Uiso 1 1 calc R U . . .
H21C H 0.404017 1.028711 0.257477 0.126 Uiso 1 1 calc R U . . .
C22 C 0.4773(3) 0.7885(4) 0.23043(17) 0.0790(12) Uani 1 1 d . . . . .
H22A H 0.447349 0.823568 0.188541 0.118 Uiso 1 1 calc R U . . .
H22B H 0.478626 0.690842 0.228305 0.118 Uiso 1 1 calc R U . . .
H22C H 0.537784 0.822932 0.233904 0.118 Uiso 1 1 calc R U . . .
C23 C 0.5922(2) 0.7313(3) 0.38137(19) 0.0601(9) Uani 1 1 d . . . . .
H23 H 0.609080 0.707792 0.333447 0.072 Uiso 1 1 calc R U . . .
C24 C 0.6372(3) 0.8685(4) 0.3981(2) 0.0917(14) Uani 1 1 d . . . . .
H24A H 0.620571 0.898462 0.444015 0.138 Uiso 1 1 calc R U . . .
H24B H 0.617619 0.934518 0.363512 0.138 Uiso 1 1 calc R U . . .
H24C H 0.701454 0.858620 0.397372 0.138 Uiso 1 1 calc R U . . .
C25 C 0.6329(3) 0.6224(4) 0.4287(2) 0.0907(14) Uani 1 1 d . . . . .
H25A H 0.697028 0.620238 0.423706 0.136 Uiso 1 1 calc R U . . .
H25B H 0.607734 0.535481 0.415705 0.136 Uiso 1 1 calc R U . . .
H25C H 0.619924 0.642075 0.476801 0.136 Uiso 1 1 calc R U . . .
C26 C 0.4217(2) 0.8371(3) 0.45702(16) 0.0518(8) Uani 1 1 d . . . . .
H26 H 0.447098 0.929196 0.455597 0.062 Uiso 1 1 calc R U . . .
C27 C 0.4512(3) 0.7756(3) 0.52882(17) 0.0758(11) Uani 1 1 d . . . . .
H27A H 0.426262 0.828415 0.565938 0.114 Uiso 1 1 calc R U . . .
H27B H 0.515780 0.776549 0.533799 0.114 Uiso 1 1 calc R U . . .
H27C H 0.429899 0.683503 0.531494 0.114 Uiso 1 1 calc R U . . .
C28 C 0.3182(2) 0.8528(4) 0.4531(2) 0.0771(11) Uani 1 1 d . . . . .
H28A H 0.290627 0.765197 0.458320 0.116 Uiso 1 1 calc R U . . .
H28B H 0.299756 0.891021 0.408252 0.116 Uiso 1 1 calc R U . . .
H28C H 0.299918 0.912095 0.490118 0.116 Uiso 1 1 calc R U . . .


_geom_special_details            
;
 All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;

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
S1 O2 1.433(3) . ?
S1 O1 1.439(3) . ?
S1 N1 1.631(3) . ?
S1 C1 1.758(4) . ?
Si1 C20 1.884(3) . ?
Si1 C23 1.889(3) . ?
Si1 C26 1.892(3) . ?
Si1 C19 1.895(3) . ?
N1 C8 1.475(4) . ?
N1 C12 1.475(4) . ?
C1 C2 1.378(5) . ?
C1 C6 1.381(5) . ?
C2 C3 1.385(5) . ?
C2 H2 0.9300 . ?
C3 C4 1.376(6) . ?
C3 H3 0.9300 . ?
C4 C5 1.378(5) . ?
C4 C7 1.507(6) . ?
C5 C6 1.378(5) . ?
C5 H5 0.9300 . ?
C6 H6 0.9300 . ?
C7 H7A 0.9600 . ?
C7 H7B 0.9600 . ?
C7 H7C 0.9600 . ?
C8 C9 1.512(4) . ?
C8 H8A 0.9700 . ?
C8 H8B 0.9700 . ?
C9 C19 1.504(4) . ?
C9 C11 1.510(4) . ?
C9 C10 1.540(4) . ?
C10 C13 1.493(4) . ?
C10 C11 1.502(4) . ?
C10 H10 0.9800 . ?
C11 C12 1.515(4) . ?
C11 H11 0.9800 . ?
C12 H12A 0.9700 . ?
C12 H12B 0.9700 . ?
C13 C18 1.386(4) . ?
C13 C14 1.393(4) . ?
C14 C15 1.389(5) . ?
C14 H14 0.9300 . ?
C15 C16 1.368(5) . ?
C15 H15 0.9300 . ?
C16 C17 1.371(5) . ?
C16 H16 0.9300 . ?
C17 C18 1.391(5) . ?
C17 H17 0.9300 . ?
C18 H18 0.9300 . ?
C19 H19A 0.9700 . ?
C19 H19B 0.9700 . ?
C20 C21 1.539(4) . ?
C20 C22 1.543(4) . ?
C20 H20 0.9800 . ?
C21 H21A 0.9600 . ?
C21 H21B 0.9600 . ?
C21 H21C 0.9600 . ?
C22 H22A 0.9600 . ?
C22 H22B 0.9600 . ?
C22 H22C 0.9600 . ?
C23 C25 1.509(4) . ?
C23 C24 1.532(4) . ?
C23 H23 0.9800 . ?
C24 H24A 0.9600 . ?
C24 H24B 0.9600 . ?
C24 H24C 0.9600 . ?
C25 H25A 0.9600 . ?
C25 H25B 0.9600 . ?
C25 H25C 0.9600 . ?
C26 C27 1.539(4) . ?
C26 C28 1.543(4) . ?
C26 H26 0.9800 . ?
C27 H27A 0.9600 . ?
C27 H27B 0.9600 . ?
C27 H27C 0.9600 . ?
C28 H28A 0.9600 . ?
C28 H28B 0.9600 . ?
C28 H28C 0.9600 . ?

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
O2 S1 O1 120.96(17) . . ?
O2 S1 N1 106.30(16) . . ?
O1 S1 N1 106.63(16) . . ?
O2 S1 C1 107.78(18) . . ?
O1 S1 C1 108.13(18) . . ?
N1 S1 C1 106.15(15) . . ?
C20 Si1 C23 109.28(16) . . ?
C20 Si1 C26 108.67(14) . . ?
C23 Si1 C26 111.93(15) . . ?
C20 Si1 C19 111.71(14) . . ?
C23 Si1 C19 110.83(14) . . ?
C26 Si1 C19 104.34(14) . . ?
C8 N1 C12 110.3(2) . . ?
C8 N1 S1 118.5(2) . . ?
C12 N1 S1 118.9(2) . . ?
C2 C1 C6 119.6(4) . . ?
C2 C1 S1 120.4(3) . . ?
C6 C1 S1 119.8(3) . . ?
C1 C2 C3 119.6(4) . . ?
C1 C2 H2 120.2 . . ?
C3 C2 H2 120.2 . . ?
C4 C3 C2 121.3(4) . . ?
C4 C3 H3 119.4 . . ?
C2 C3 H3 119.4 . . ?
C3 C4 C5 118.3(4) . . ?
C3 C4 C7 121.2(5) . . ?
C5 C4 C7 120.5(4) . . ?
C6 C5 C4 121.2(4) . . ?
C6 C5 H5 119.4 . . ?
C4 C5 H5 119.4 . . ?
C5 C6 C1 120.0(4) . . ?
C5 C6 H6 120.0 . . ?
C1 C6 H6 120.0 . . ?
C4 C7 H7A 109.5 . . ?
C4 C7 H7B 109.5 . . ?
H7A C7 H7B 109.5 . . ?
C4 C7 H7C 109.5 . . ?
H7A C7 H7C 109.5 . . ?
H7B C7 H7C 109.5 . . ?
N1 C8 C9 104.6(2) . . ?
N1 C8 H8A 110.8 . . ?
C9 C8 H8A 110.8 . . ?
N1 C8 H8B 110.8 . . ?
C9 C8 H8B 110.8 . . ?
H8A C8 H8B 108.9 . . ?
C19 C9 C11 125.5(3) . . ?
C19 C9 C8 118.3(3) . . ?
C11 C9 C8 106.5(2) . . ?
C19 C9 C10 120.9(3) . . ?
C11 C9 C10 58.99(19) . . ?
C8 C9 C10 112.8(3) . . ?
C13 C10 C11 124.0(3) . . ?
C13 C10 C9 122.0(3) . . ?
C11 C10 C9 59.52(19) . . ?
C13 C10 H10 113.6 . . ?
C11 C10 H10 113.6 . . ?
C9 C10 H10 113.6 . . ?
C10 C11 C9 61.49(19) . . ?
C10 C11 C12 115.7(3) . . ?
C9 C11 C12 108.4(3) . . ?
C10 C11 H11 119.2 . . ?
C9 C11 H11 119.2 . . ?
C12 C11 H11 119.2 . . ?
N1 C12 C11 102.8(3) . . ?
N1 C12 H12A 111.2 . . ?
C11 C12 H12A 111.2 . . ?
N1 C12 H12B 111.2 . . ?
C11 C12 H12B 111.2 . . ?
H12A C12 H12B 109.1 . . ?
C18 C13 C14 117.2(3) . . ?
C18 C13 C10 118.5(3) . . ?
C14 C13 C10 124.2(3) . . ?
C15 C14 C13 121.6(4) . . ?
C15 C14 H14 119.2 . . ?
C13 C14 H14 119.2 . . ?
C16 C15 C14 119.6(4) . . ?
C16 C15 H15 120.2 . . ?
C14 C15 H15 120.2 . . ?
C15 C16 C17 120.3(4) . . ?
C15 C16 H16 119.8 . . ?
C17 C16 H16 119.8 . . ?
C16 C17 C18 120.0(4) . . ?
C16 C17 H17 120.0 . . ?
C18 C17 H17 120.0 . . ?
C13 C18 C17 121.2(4) . . ?
C13 C18 H18 119.4 . . ?
C17 C18 H18 119.4 . . ?
C9 C19 Si1 124.2(2) . . ?
C9 C19 H19A 106.3 . . ?
Si1 C19 H19A 106.3 . . ?
C9 C19 H19B 106.3 . . ?
Si1 C19 H19B 106.3 . . ?
H19A C19 H19B 106.4 . . ?
C21 C20 C22 108.6(3) . . ?
C21 C20 Si1 114.7(2) . . ?
C22 C20 Si1 112.6(2) . . ?
C21 C20 H20 106.8 . . ?
C22 C20 H20 106.8 . . ?
Si1 C20 H20 106.8 . . ?
C20 C21 H21A 109.5 . . ?
C20 C21 H21B 109.5 . . ?
H21A C21 H21B 109.5 . . ?
C20 C21 H21C 109.5 . . ?
H21A C21 H21C 109.5 . . ?
H21B C21 H21C 109.5 . . ?
C20 C22 H22A 109.5 . . ?
C20 C22 H22B 109.5 . . ?
H22A C22 H22B 109.5 . . ?
C20 C22 H22C 109.5 . . ?
H22A C22 H22C 109.5 . . ?
H22B C22 H22C 109.5 . . ?
C25 C23 C24 109.8(3) . . ?
C25 C23 Si1 115.9(3) . . ?
C24 C23 Si1 112.5(2) . . ?
C25 C23 H23 106.0 . . ?
C24 C23 H23 106.0 . . ?
Si1 C23 H23 106.0 . . ?
C23 C24 H24A 109.5 . . ?
C23 C24 H24B 109.5 . . ?
H24A C24 H24B 109.5 . . ?
C23 C24 H24C 109.5 . . ?
H24A C24 H24C 109.5 . . ?
H24B C24 H24C 109.5 . . ?
C23 C25 H25A 109.5 . . ?
C23 C25 H25B 109.5 . . ?
H25A C25 H25B 109.5 . . ?
C23 C25 H25C 109.5 . . ?
H25A C25 H25C 109.5 . . ?
H25B C25 H25C 109.5 . . ?
C27 C26 C28 109.4(3) . . ?
C27 C26 Si1 114.3(2) . . ?
C28 C26 Si1 112.2(2) . . ?
C27 C26 H26 106.8 . . ?
C28 C26 H26 106.8 . . ?
Si1 C26 H26 106.8 . . ?
C26 C27 H27A 109.5 . . ?
C26 C27 H27B 109.5 . . ?
H27A C27 H27B 109.5 . . ?
C26 C27 H27C 109.5 . . ?
H27A C27 H27C 109.5 . . ?
H27B C27 H27C 109.5 . . ?
C26 C28 H28A 109.5 . . ?
C26 C28 H28B 109.5 . . ?
H28A C28 H28B 109.5 . . ?
C26 C28 H28C 109.5 . . ?
H28A C28 H28C 109.5 . . ?
H28B C28 H28C 109.5 . . ?

_refine_diff_density_max         0.239
_refine_diff_density_min         -0.282
_refine_diff_density_rms         0.042

