# Electronic Supplementary Material (ESI) for Organic Chemistry Frontiers.
# This journal is © the Partner Organisations 2017

####################################################################### 
# 
# 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_1
_database_code_depnum_ccdc_archive 'CCDC 1523851'
_audit_update_record             
;
2016-12-21 deposited with the CCDC.
2017-04-13 downloaded from the CCDC.
;
_audit_creation_date             2016-12-12
_audit_creation_method           
;
Olex2 1.2
(compiled 2016.11.30 svn.r3356 for OlexSys, GUI svn.r5269)
;
_chemical_name_common            ?
_chemical_name_systematic        ?
_chemical_formula_moiety         'C84 H108 Si4'
_chemical_formula_sum            'C84 H108 Si4'
_chemical_formula_weight         1230.06
_chemical_melting_point          ?
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0050 0.0020 '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'
Si Si 0.1000 0.0900 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_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.
;
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_H-M_alt        'P -1'
_space_group_name_Hall           '-P 1'
loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, -y, -z'

_cell_length_a                   8.2685(16)
_cell_length_b                   13.793(3)
_cell_length_c                   17.645(3)
_cell_angle_alpha                72.588(3)
_cell_angle_beta                 88.716(3)
_cell_angle_gamma                77.009(2)
_cell_volume                     1868.9(6)
_cell_formula_units_Z            1
_cell_measurement_reflns_used    2894
_cell_measurement_temperature    150
_cell_measurement_theta_max      30.230
_cell_measurement_theta_min      2.554
_shelx_estimated_absorpt_T_max   ?
_shelx_estimated_absorpt_T_min   ?
_exptl_absorpt_coefficient_mu    0.165
_exptl_absorpt_correction_T_max  0.7460
_exptl_absorpt_correction_T_min  0.6592
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   
;
SADABS-2012/1 (Bruker,2012) was used for absorption correction.
wR2(int) was 0.0699 before and 0.0503 after correction.
The Ratio of minimum to maximum transmission is 0.8836.
The λ/2 correction factor is 0.0015.
;
_exptl_absorpt_special_details   ?
_exptl_crystal_colour            red
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.093
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_description       needle
_exptl_crystal_F_000             668
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.05
_exptl_transmission_factor_max   ?
_exptl_transmission_factor_min   ?
_diffrn_reflns_av_R_equivalents  0.0444
_diffrn_reflns_av_unetI/netI     0.0916
_diffrn_reflns_Laue_measured_fraction_full 0.986
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            9239
_diffrn_reflns_point_group_measured_fraction_full 0.986
_diffrn_reflns_point_group_measured_fraction_max 0.986
_diffrn_reflns_theta_full        27.499
_diffrn_reflns_theta_max         27.499
_diffrn_reflns_theta_min         1.894
_diffrn_ambient_temperature      150
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_radiation_wavelength     0.80000
_diffrn_radiation_type           synchrotron
_diffrn_radiation_source         synchrotron
_diffrn_radiation_monochromator  silicon
_diffrn_measurement_device_type  'Bruker SMART Apex'
_diffrn_measurement_method       'CCD area detector'
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                3973
_reflns_number_total             5950
_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.
;
_reflns_threshold_expression     'I > 2σ(I)'
_computing_cell_refinement       'SAINT v8.27A (Bruker, 2012)'
_computing_data_collection       ?
_computing_data_reduction        'SAINT v8.27A (Bruker, 2012)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_refine_diff_density_max         0.413
_refine_diff_density_min         -0.340
_refine_diff_density_rms         0.055
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     409
_refine_ls_number_reflns         5950
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0904
_refine_ls_R_factor_gt           0.0564
_refine_ls_restrained_S_all      1.015
_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)+(0.0669P)²] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1314
_refine_ls_wR_factor_ref         0.1438
_refine_special_details          ?
_olex2_refinement_description    
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C25(H25), C28(H28), C31(H31), C34(H34), C37(H37), C40(H40)
2.b Secondary CH2 refined with riding coordinates:
 C19(H19A,H19B), C20(H20A,H20B)
2.c Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C8(H8), C11(H11), C12(H12), C15(H15)
2.d Idealised Me refined as rotating group:
 C26(H26A,H26B,H26C), C27(H27A,H27B,H27C), C29(H29A,H29B,H29C), C30(H30A,H30B,
 H30C), C32(H32A,H32B,H32C), C33(H33A,H33B,H33C), C35(H35A,H35B,H35C), C36(H36A,
 H36B,H36C), C38(H38A,H38B,H38C), C39(H39A,H39B,H39C), C41(H41A,H41B,H41C),
 C42(H42A,H42B,H42C)
;
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   ?
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
Si1 Si 0.65091(9) 0.69399(6) 0.38714(5) 0.0195(2) Uani 1 1 d . . . . .
Si2 Si 1.44484(9) 1.33181(6) 0.16632(5) 0.0195(2) Uani 1 1 d . . . . .
C1 C 1.0736(3) 0.8911(2) 0.44933(18) 0.0214(7) Uani 1 1 d . . . . .
H1 H 1.0101 0.8398 0.4673 0.026 Uiso 1 1 calc R . . . .
C2 C 1.1737(3) 0.9067(2) 0.50230(19) 0.0257(7) Uani 1 1 d . . . . .
H2 H 1.1804 0.8659 0.5565 0.031 Uiso 1 1 calc R . . . .
C3 C 1.2688(3) 0.9840(2) 0.47719(18) 0.0245(7) Uani 1 1 d . . . . .
H3 H 1.3365 0.9955 0.5149 0.029 Uiso 1 1 calc R . . . .
C4 C 1.2630(3) 1.0411(2) 0.39958(18) 0.0233(7) Uani 1 1 d . . . . .
H4 H 1.3284 1.0916 0.3836 0.028 Uiso 1 1 calc R . . . .
C5 C 1.1606(3) 1.0270(2) 0.34104(17) 0.0183(7) Uani 1 1 d . . . . .
C6 C 1.1549(3) 1.0850(2) 0.26023(17) 0.0172(6) Uani 1 1 d . . . . .
C7 C 1.0551(3) 1.0671(2) 0.20265(17) 0.0173(6) Uani 1 1 d . . . . .
C8 C 1.0541(3) 1.1194(2) 0.12094(17) 0.0182(7) Uani 1 1 d . . . . .
H8 H 1.1214 1.1687 0.1037 0.022 Uiso 1 1 calc R . . . .
C9 C 0.9590(3) 1.1022(2) 0.06418(17) 0.0179(6) Uani 1 1 d . . . . .
C10 C 0.9656(3) 1.1521(2) -0.02039(17) 0.0191(7) Uani 1 1 d . . . . .
C11 C 0.8478(3) 1.1441(2) -0.06971(18) 0.0207(7) Uani 1 1 d . . . . .
H11 H 0.8316 1.1894 -0.1227 0.025 Uiso 1 1 calc R . . . .
C12 C 0.7487(3) 1.0691(2) -0.04353(17) 0.0207(7) Uani 1 1 d . . . . .
H12 H 0.6687 1.0653 -0.0797 0.025 Uiso 1 1 calc R . . . .
C13 C 0.7659(3) 1.0029(2) 0.03208(18) 0.0200(7) Uani 1 1 d . . . . .
C14 C 0.8568(3) 1.0261(2) 0.09100(17) 0.0185(7) Uani 1 1 d . . . . .
C15 C 0.8574(3) 0.9747(2) 0.17167(17) 0.0191(7) Uani 1 1 d . . . . .
H15 H 0.7898 0.9256 0.1890 0.023 Uiso 1 1 calc R . . . .
C16 C 0.9538(3) 0.9921(2) 0.22891(17) 0.0169(6) Uani 1 1 d . . . . .
C17 C 0.9572(3) 0.9354(2) 0.31131(17) 0.0178(6) Uani 1 1 d . . . . .
C18 C 1.0615(3) 0.9500(2) 0.36713(17) 0.0181(7) Uani 1 1 d . . . . .
C19 C 0.7238(3) 0.8966(2) 0.04843(18) 0.0239(7) Uani 1 1 d . . . . .
H19A H 0.6480 0.8987 0.0050 0.029 Uiso 1 1 calc R . . . .
H19B H 0.6652 0.8810 0.0987 0.029 Uiso 1 1 calc R . . . .
C20 C 0.8853(3) 0.8066(2) 0.05499(17) 0.0226(7) Uani 1 1 d . . . . .
H20A H 0.9117 0.7660 0.1116 0.027 Uiso 1 1 calc R . . . .
H20B H 0.8624 0.7586 0.0267 0.027 Uiso 1 1 calc R . . . .
C21 C 0.8566(3) 0.8599(2) 0.33743(17) 0.0186(7) Uani 1 1 d . . . . .
C22 C 0.7726(3) 0.7958(2) 0.35799(18) 0.0240(7) Uani 1 1 d . . . . .
C23 C 1.2516(3) 1.1624(2) 0.23354(17) 0.0191(7) Uani 1 1 d . . . . .
C24 C 1.3307(3) 1.2291(2) 0.21029(18) 0.0219(7) Uani 1 1 d . . . . .
C25 C 0.6582(4) 0.6451(2) 0.49918(18) 0.0268(7) Uani 1 1 d . . . . .
H25 H 0.5897 0.5915 0.5145 0.032 Uiso 1 1 calc R . . . .
C26 C 0.8315(4) 0.5925(3) 0.5353(2) 0.0612(13) Uani 1 1 d . . . . .
H26A H 0.8745 0.5312 0.5174 0.092 Uiso 1 1 calc GR . . . .
H26B H 0.8282 0.5706 0.5935 0.092 Uiso 1 1 calc GR . . . .
H26C H 0.9041 0.6415 0.5186 0.092 Uiso 1 1 calc GR . . . .
C27 C 0.5825(5) 0.7308(3) 0.5360(2) 0.0568(12) Uani 1 1 d . . . . .
H27A H 0.6422 0.7870 0.5194 0.085 Uiso 1 1 calc GR . . . .
H27B H 0.5915 0.7020 0.5941 0.085 Uiso 1 1 calc GR . . . .
H27C H 0.4652 0.7585 0.5183 0.085 Uiso 1 1 calc GR . . . .
C28 C 0.7620(3) 0.5873(2) 0.34546(19) 0.0256(7) Uani 1 1 d . . . . .
H28 H 0.8815 0.5721 0.3632 0.031 Uiso 1 1 calc R . . . .
C29 C 0.7084(4) 0.4829(3) 0.3770(2) 0.0454(10) Uani 1 1 d . . . . .
H29A H 0.7155 0.4602 0.4352 0.068 Uiso 1 1 calc GR . . . .
H29B H 0.7819 0.4300 0.3575 0.068 Uiso 1 1 calc GR . . . .
H29C H 0.5937 0.4920 0.3582 0.068 Uiso 1 1 calc GR . . . .
C30 C 0.7583(4) 0.6214(3) 0.2543(2) 0.0413(9) Uani 1 1 d . . . . .
H30A H 0.6449 0.6315 0.2335 0.062 Uiso 1 1 calc GR . . . .
H30B H 0.8330 0.5674 0.2364 0.062 Uiso 1 1 calc GR . . . .
H30C H 0.7947 0.6870 0.2348 0.062 Uiso 1 1 calc GR . . . .
C31 C 0.4303(3) 0.7581(2) 0.34676(18) 0.0236(7) Uani 1 1 d . . . . .
H31 H 0.3843 0.8058 0.3789 0.028 Uiso 1 1 calc R . . . .
C32 C 0.3173(4) 0.6805(3) 0.3593(2) 0.0448(10) Uani 1 1 d . . . . .
H32A H 0.3508 0.6354 0.3253 0.067 Uiso 1 1 calc GR . . . .
H32B H 0.2017 0.7190 0.3454 0.067 Uiso 1 1 calc GR . . . .
H32C H 0.3274 0.6376 0.4151 0.067 Uiso 1 1 calc GR . . . .
C33 C 0.4140(4) 0.8270(3) 0.26018(19) 0.0345(8) Uani 1 1 d . . . . .
H33A H 0.4832 0.8778 0.2534 0.052 Uiso 1 1 calc GR . . . .
H33B H 0.2977 0.8640 0.2462 0.052 Uiso 1 1 calc GR . . . .
H33C H 0.4507 0.7834 0.2254 0.052 Uiso 1 1 calc GR . . . .
C34 C 1.6721(3) 1.2717(2) 0.19452(18) 0.0234(7) Uani 1 1 d . . . . .
H34 H 1.7041 1.2128 0.1711 0.028 Uiso 1 1 calc R . . . .
C35 C 1.7849(4) 1.3473(3) 0.1591(2) 0.0387(9) Uani 1 1 d . . . . .
H35A H 1.7668 1.3729 0.1011 0.058 Uiso 1 1 calc GR . . . .
H35B H 1.9014 1.3108 0.1729 0.058 Uiso 1 1 calc GR . . . .
H35C H 1.7582 1.4064 0.1808 0.058 Uiso 1 1 calc GR . . . .
C36 C 1.7058(4) 1.2242(3) 0.28432(19) 0.0345(8) Uani 1 1 d . . . . .
H36A H 1.6789 1.2796 0.3098 0.052 Uiso 1 1 calc GR . . . .
H36B H 1.8233 1.1887 0.2957 0.052 Uiso 1 1 calc GR . . . .
H36C H 1.6367 1.1738 0.3051 0.052 Uiso 1 1 calc GR . . . .
C37 C 1.3642(3) 1.4452(2) 0.20672(18) 0.0254(7) Uani 1 1 d . . . . .
H37 H 1.4295 1.4298 0.2576 0.031 Uiso 1 1 calc R . . . .
C38 C 1.1801(4) 1.4594(3) 0.2272(2) 0.0407(9) Uani 1 1 d . . . . .
H38A H 1.1107 1.4776 0.1785 0.061 Uiso 1 1 calc GR . . . .
H38B H 1.1502 1.5154 0.2520 0.061 Uiso 1 1 calc GR . . . .
H38C H 1.1623 1.3942 0.2642 0.061 Uiso 1 1 calc GR . . . .
C39 C 1.3943(4) 1.5488(2) 0.1518(2) 0.0377(9) Uani 1 1 d . . . . .
H39A H 1.5123 1.5403 0.1405 0.057 Uiso 1 1 calc GR . . . .
H39B H 1.3617 1.6032 0.1779 0.057 Uiso 1 1 calc GR . . . .
H39C H 1.3279 1.5688 0.1019 0.057 Uiso 1 1 calc GR . . . .
C40 C 1.4051(4) 1.3683(2) 0.05523(18) 0.0240(7) Uani 1 1 d . . . . .
H40 H 1.4646 1.4245 0.0296 0.029 Uiso 1 1 calc R . . . .
C41 C 1.2195(4) 1.4112(2) 0.0296(2) 0.0330(8) Uani 1 1 d . . . . .
H41A H 1.1558 1.3613 0.0593 0.049 Uiso 1 1 calc GR . . . .
H41B H 1.2044 1.4217 -0.0275 0.049 Uiso 1 1 calc GR . . . .
H41C H 1.1801 1.4780 0.0406 0.049 Uiso 1 1 calc GR . . . .
C42 C 1.4783(4) 1.2743(2) 0.02555(19) 0.0299(8) Uani 1 1 d . . . . .
H42A H 1.5998 1.2578 0.0320 0.045 Uiso 1 1 calc GR . . . .
H42B H 1.4454 1.2913 -0.0308 0.045 Uiso 1 1 calc GR . . . .
H42C H 1.4364 1.2140 0.0565 0.045 Uiso 1 1 calc GR . . . .


_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
Si1 C22 1.852(3) . ?
Si1 C25 1.886(3) . ?
Si1 C28 1.886(3) . ?
Si1 C31 1.890(3) . ?
Si2 C24 1.847(3) . ?
Si2 C34 1.887(3) . ?
Si2 C37 1.891(3) . ?
Si2 C40 1.889(3) . ?
C1 C2 1.357(4) . ?
C1 C18 1.428(4) . ?
C2 C3 1.424(4) . ?
C3 C4 1.356(4) . ?
C4 C5 1.433(4) . ?
C5 C6 1.407(4) . ?
C5 C18 1.446(4) . ?
C6 C7 1.433(4) . ?
C6 C23 1.438(4) . ?
C7 C8 1.405(4) . ?
C7 C16 1.440(4) . ?
C8 C9 1.393(4) . ?
C9 C10 1.450(4) . ?
C9 C14 1.457(4) . ?
C10 C11 1.365(4) . ?
C10 C20 1.514(4) 2_775 ?
C11 C12 1.426(4) . ?
C12 C13 1.362(4) . ?
C13 C14 1.447(4) . ?
C13 C19 1.525(4) . ?
C14 C15 1.387(4) . ?
C15 C16 1.407(4) . ?
C16 C17 1.428(4) . ?
C17 C18 1.411(4) . ?
C17 C21 1.440(4) . ?
C19 C20 1.585(4) . ?
C20 C10 1.514(4) 2_775 ?
C21 C22 1.212(4) . ?
C23 C24 1.214(4) . ?
C25 C26 1.511(4) . ?
C25 C27 1.524(5) . ?
C28 C29 1.542(4) . ?
C28 C30 1.534(4) . ?
C31 C32 1.538(4) . ?
C31 C33 1.529(4) . ?
C34 C35 1.538(4) . ?
C34 C36 1.528(4) . ?
C37 C38 1.539(4) . ?
C37 C39 1.537(4) . ?
C40 C41 1.541(4) . ?
C40 C42 1.536(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
C22 Si1 C25 107.66(14) . . ?
C22 Si1 C28 105.19(13) . . ?
C22 Si1 C31 107.19(13) . . ?
C25 Si1 C28 110.54(14) . . ?
C25 Si1 C31 110.37(13) . . ?
C28 Si1 C31 115.44(14) . . ?
C24 Si2 C34 106.97(13) . . ?
C24 Si2 C37 108.68(13) . . ?
C24 Si2 C40 105.66(13) . . ?
C34 Si2 C37 111.90(14) . . ?
C34 Si2 C40 110.72(13) . . ?
C40 Si2 C37 112.53(13) . . ?
C2 C1 C18 121.5(3) . . ?
C1 C2 C3 120.5(3) . . ?
C4 C3 C2 120.2(3) . . ?
C3 C4 C5 121.6(3) . . ?
C4 C5 C18 118.0(3) . . ?
C6 C5 C4 122.1(2) . . ?
C6 C5 C18 119.9(3) . . ?
C5 C6 C7 120.9(2) . . ?
C5 C6 C23 120.5(3) . . ?
C7 C6 C23 118.6(3) . . ?
C6 C7 C16 119.2(3) . . ?
C8 C7 C6 122.2(2) . . ?
C8 C7 C16 118.6(3) . . ?
C9 C8 C7 122.9(2) . . ?
C8 C9 C10 122.6(2) . . ?
C8 C9 C14 118.3(3) . . ?
C10 C9 C14 119.0(3) . . ?
C9 C10 C20 121.5(2) . 2_775 ?
C11 C10 C9 117.7(2) . . ?
C11 C10 C20 119.8(3) . 2_775 ?
C10 C11 C12 121.5(3) . . ?
C13 C12 C11 121.6(3) . . ?
C12 C13 C14 118.0(3) . . ?
C12 C13 C19 119.6(3) . . ?
C14 C13 C19 121.0(3) . . ?
C13 C14 C9 118.7(3) . . ?
C15 C14 C9 118.8(3) . . ?
C15 C14 C13 122.4(3) . . ?
C14 C15 C16 122.8(3) . . ?
C15 C16 C7 118.6(3) . . ?
C15 C16 C17 121.8(2) . . ?
C17 C16 C7 119.6(3) . . ?
C16 C17 C21 119.5(3) . . ?
C18 C17 C16 120.9(2) . . ?
C18 C17 C21 119.5(3) . . ?
C1 C18 C5 118.2(3) . . ?
C17 C18 C1 122.3(2) . . ?
C17 C18 C5 119.5(3) . . ?
C13 C19 C20 111.8(2) . . ?
C10 C20 C19 112.7(2) 2_775 . ?
C22 C21 C17 178.7(3) . . ?
C21 C22 Si1 177.4(3) . . ?
C24 C23 C6 178.8(3) . . ?
C23 C24 Si2 175.2(3) . . ?
C26 C25 Si1 113.1(2) . . ?
C26 C25 C27 109.3(3) . . ?
C27 C25 Si1 112.6(2) . . ?
C29 C28 Si1 115.3(2) . . ?
C30 C28 Si1 113.3(2) . . ?
C30 C28 C29 109.9(3) . . ?
C32 C31 Si1 113.2(2) . . ?
C33 C31 Si1 114.86(19) . . ?
C33 C31 C32 110.2(3) . . ?
C35 C34 Si2 113.1(2) . . ?
C36 C34 Si2 112.5(2) . . ?
C36 C34 C35 110.9(3) . . ?
C38 C37 Si2 114.3(2) . . ?
C39 C37 Si2 112.7(2) . . ?
C39 C37 C38 109.6(3) . . ?
C41 C40 Si2 112.8(2) . . ?
C42 C40 Si2 110.1(2) . . ?
C42 C40 C41 110.7(3) . . ?

_shelx_SHELXL_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'
