# Electronic Supplementary Material (ESI) for ChemComm.
# This journal is © The Royal Society of Chemistry 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_ljh055
_audit_block_doi                 10.5517/ccdc.csd.cc1q61lk
_database_code_depnum_ccdc_archive 'CCDC 1584738'
_audit_update_record             
;
2017-11-09 deposited with the CCDC.
2017-12-19 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C27 H36 N2 O Si'
_chemical_formula_weight         432.67

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'
N N 0.0061 0.0033 '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'

_symmetry_cell_setting           Monoclinic
_symmetry_space_group_name_H-M   P2(1)/c

loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y-1/2, z-1/2'

_cell_length_a                   12.787(2)
_cell_length_b                   16.559(3)
_cell_length_c                   11.9492(18)
_cell_angle_alpha                90.00
_cell_angle_beta                 95.643(3)
_cell_angle_gamma                90.00
_cell_volume                     2517.9(7)
_cell_formula_units_Z            4
_cell_measurement_temperature    296(2)
_cell_measurement_reflns_used    4008
_cell_measurement_theta_min      2.46
_cell_measurement_theta_max      24.64

_exptl_crystal_description       LUMP
_exptl_crystal_colour            COLORLESS
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_exptl_crystal_density_meas      1.141
_exptl_crystal_density_diffrn    1.141
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             936
_exptl_absorpt_coefficient_mu    0.114
_exptl_absorpt_correction_type   MULTI-SCAN
_exptl_absorpt_correction_T_min  0.9744
_exptl_absorpt_correction_T_max  0.9776
_exptl_absorpt_process_details   SADDAB

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      296(2)
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_type           MoK\a
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_monochromator  graphite
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       'φ and ω scans'
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            15140
_diffrn_reflns_av_R_equivalents  0.0254
_diffrn_reflns_av_sigmaI/netI    0.0332
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_theta_min         1.60
_diffrn_reflns_theta_max         27.49
_reflns_number_total             5726
_reflns_number_gt                3974
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       'Bruker APEX2'
_computing_cell_refinement       'Bruker SAINT'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'

_refine_special_details          
; 
 Refinement of F² against ALL reflections.  The weighted R-factor wR and 
 goodness of fit S are based on F², conventional R-factors R are based 
 on F, with F set to zero for negative F². The threshold expression of 
 F² > 2sigma(F²) is used only for calculating R-factors(gt) etc. and is 
 not relevant to the choice of reflections for refinement.  R-factors based 
 on F² are statistically about twice as large as those based on F, and R- 
 factors based on ALL data will be even larger. 
;

_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'calc w=1/[σ²(Fo²)+(0.0533P)²+0.4792P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    CONSTR
_refine_ls_extinction_method     SHELXL
_refine_ls_extinction_coef       0.0051(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_number_reflns         5726
_refine_ls_number_parameters     288
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0691
_refine_ls_R_factor_gt           0.0443
_refine_ls_wR_factor_ref         0.1267
_refine_ls_wR_factor_gt          0.1123
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_restrained_S_all      1.029
_refine_ls_shift/su_max          0.001
_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_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
Si1 Si 0.37556(4) 0.12741(3) 0.78673(4) 0.04662(15) Uani 1 1 d . . .
N2 N 0.22434(11) 0.02450(9) 0.68303(12) 0.0543(4) Uani 1 1 d . . .
C4 C 0.04801(12) 0.02957(10) 0.72309(14) 0.0475(4) Uani 1 1 d . . .
N1 N 0.02334(11) 0.11305(8) 0.88504(11) 0.0492(3) Uani 1 1 d . . .
C1 C 0.10787(13) 0.16126(10) 0.87000(14) 0.0486(4) Uani 1 1 d . . .
O1 O 0.14114(11) 0.20879(8) 0.94269(11) 0.0702(4) Uani 1 1 d . . .
C9 C -0.01594(13) 0.05501(10) 0.80438(14) 0.0481(4) Uani 1 1 d . . .
C12 C 0.50016(15) 0.18208(11) 0.75905(18) 0.0628(5) Uani 1 1 d . . .
H12 H 0.4974 0.1886 0.6773 0.075 Uiso 1 1 calc R . .
C21 C -0.02056(15) 0.11817(11) 0.99330(15) 0.0566(4) Uani 1 1 d . . .
H21A H 0.0364 0.1294 1.0510 0.068 Uiso 1 1 calc R . .
H21B H -0.0492 0.0657 1.0098 0.068 Uiso 1 1 calc R . .
C27 C -0.16336(16) 0.17628(12) 1.09231(16) 0.0633(5) Uani 1 1 d . . .
H27 H -0.1531 0.1338 1.1430 0.076 Uiso 1 1 calc R . .
C5 C 0.01208(15) -0.03158(12) 0.64947(16) 0.0632(5) Uani 1 1 d . . .
H5 H 0.0543 -0.0493 0.5953 0.076 Uiso 1 1 calc R . .
C7 C -0.14833(17) -0.03929(14) 0.7339(2) 0.0783(6) Uani 1 1 d . . .
H7 H -0.2143 -0.0623 0.7372 0.094 Uiso 1 1 calc R . .
C11 C 0.26184(13) 0.19774(10) 0.76624(16) 0.0527(4) Uani 1 1 d . . .
H11A H 0.2657 0.2352 0.8289 0.063 Uiso 1 1 calc R . .
H11B H 0.2678 0.2290 0.6985 0.063 Uiso 1 1 calc R . .
C10 C 0.07557(15) 0.20441(11) 0.67378(17) 0.0627(5) Uani 1 1 d . . .
H10A H 0.0995 0.2036 0.6001 0.094 Uiso 1 1 calc R . .
H10B H 0.0716 0.2593 0.6990 0.094 Uiso 1 1 calc R . .
H10C H 0.0072 0.1800 0.6710 0.094 Uiso 1 1 calc R . .
C3 C 0.15240(12) 0.06809(10) 0.71802(13) 0.0444(4) Uani 1 1 d . . .
C13 C 0.50770(18) 0.26716(13) 0.8084(2) 0.0905(7) Uani 1 1 d . . .
H13A H 0.5148 0.2640 0.8890 0.136 Uiso 1 1 calc R . .
H13B H 0.4452 0.2968 0.7835 0.136 Uiso 1 1 calc R . .
H13C H 0.5678 0.2942 0.7837 0.136 Uiso 1 1 calc R . .
C22 C -0.10478(12) 0.18051(10) 1.00177(13) 0.0469(4) Uani 1 1 d . . .
C18 C 0.33369(14) 0.05200(11) 0.67197(16) 0.0592(5) Uani 1 1 d . . .
C6 C -0.08498(17) -0.06647(14) 0.6554(2) 0.0788(6) Uani 1 1 d . . .
H6 H -0.1075 -0.1081 0.6067 0.095 Uiso 1 1 calc R . .
C2 C 0.15370(12) 0.15646(9) 0.75661(13) 0.0452(4) Uani 1 1 d . . .
C23 C -0.12208(14) 0.24406(12) 0.92770(16) 0.0607(5) Uani 1 1 d . . .
H23 H -0.0834 0.2476 0.8659 0.073 Uiso 1 1 calc R . .
C19 C 0.40096(17) -0.02534(14) 0.6783(2) 0.0959(9) Uani 1 1 d . . .
H19A H 0.3958 -0.0516 0.7492 0.144 Uiso 1 1 calc R . .
H19B H 0.4730 -0.0115 0.6714 0.144 Uiso 1 1 calc R . .
H19C H 0.3761 -0.0611 0.6183 0.144 Uiso 1 1 calc R . .
C16 C 0.4156(2) 0.13774(17) 1.02478(19) 0.1038(9) Uani 1 1 d . . .
H16A H 0.3570 0.1738 1.0263 0.156 Uiso 1 1 calc R . .
H16B H 0.4776 0.1682 1.0133 0.156 Uiso 1 1 calc R . .
H16C H 0.4264 0.1093 1.0950 0.156 Uiso 1 1 calc R . .
C26 C -0.23692(19) 0.23462(16) 1.1080(2) 0.0874(7) Uani 1 1 d . . .
H26 H -0.2761 0.2313 1.1694 0.105 Uiso 1 1 calc R . .
C25 C -0.25299(18) 0.29764(15) 1.0340(2) 0.0831(7) Uani 1 1 d . . .
H25 H -0.3028 0.3370 1.0452 0.100 Uiso 1 1 calc R . .
C14 C 0.60039(16) 0.13381(14) 0.7944(2) 0.0902(8) Uani 1 1 d . . .
H14A H 0.6603 0.1628 0.7731 0.135 Uiso 1 1 calc R . .
H14B H 0.5964 0.0821 0.7579 0.135 Uiso 1 1 calc R . .
H14C H 0.6072 0.1263 0.8745 0.135 Uiso 1 1 calc R . .
C8 C -0.11534(14) 0.02179(12) 0.80816(17) 0.0635(5) Uani 1 1 d . . .
H8 H -0.1593 0.0404 0.8601 0.076 Uiso 1 1 calc R . .
C24 C -0.19585(16) 0.30250(13) 0.94401(19) 0.0706(6) Uani 1 1 d . . .
H24 H -0.2065 0.3452 0.8936 0.085 Uiso 1 1 calc R . .
C20 C 0.33357(18) 0.08866(18) 0.55392(17) 0.0894(8) Uani 1 1 d . . .
H20A H 0.3013 0.0516 0.4993 0.134 Uiso 1 1 calc R . .
H20B H 0.4046 0.0990 0.5383 0.134 Uiso 1 1 calc R . .
H20C H 0.2948 0.1384 0.5504 0.134 Uiso 1 1 calc R . .
C15 C 0.39330(15) 0.07728(12) 0.92905(16) 0.0621(5) Uani 1 1 d . . .
H15 H 0.4565 0.0438 0.9292 0.074 Uiso 1 1 calc R . .
C17 C 0.30505(17) 0.02023(15) 0.9558(2) 0.0908(8) Uani 1 1 d . . .
H17A H 0.3238 -0.0054 1.0270 0.136 Uiso 1 1 calc R . .
H17B H 0.2947 -0.0202 0.8981 0.136 Uiso 1 1 calc R . .
H17C H 0.2413 0.0504 0.9589 0.136 Uiso 1 1 calc R . .


_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 C11 1.8603(17) . ?
Si1 C15 1.8859(19) . ?
Si1 C12 1.8897(19) . ?
Si1 C18 1.8926(19) . ?
N2 C3 1.272(2) . ?
N2 C18 1.489(2) . ?
C4 C5 1.390(2) . ?
C4 C9 1.395(2) . ?
C4 C3 1.486(2) . ?
N1 C1 1.370(2) . ?
N1 C9 1.418(2) . ?
N1 C21 1.462(2) . ?
C1 O1 1.217(2) . ?
C1 C2 1.530(2) . ?
C9 C8 1.390(2) . ?
C12 C13 1.527(3) . ?
C12 C14 1.534(3) . ?
C12 H12 0.9800 . ?
C21 C22 1.502(2) . ?
C21 H21A 0.9700 . ?
C21 H21B 0.9700 . ?
C27 C26 1.374(3) . ?
C27 C22 1.377(2) . ?
C27 H27 0.9300 . ?
C5 C6 1.377(3) . ?
C5 H5 0.9300 . ?
C7 C6 1.374(3) . ?
C7 C8 1.384(3) . ?
C7 H7 0.9300 . ?
C11 C2 1.537(2) . ?
C11 H11A 0.9700 . ?
C11 H11B 0.9700 . ?
C10 C2 1.554(2) . ?
C10 H10A 0.9600 . ?
C10 H10B 0.9600 . ?
C10 H10C 0.9600 . ?
C3 C2 1.534(2) . ?
C13 H13A 0.9600 . ?
C13 H13B 0.9600 . ?
C13 H13C 0.9600 . ?
C22 C23 1.379(2) . ?
C18 C20 1.536(3) . ?
C18 C19 1.540(3) . ?
C6 H6 0.9300 . ?
C23 C24 1.379(3) . ?
C23 H23 0.9300 . ?
C19 H19A 0.9600 . ?
C19 H19B 0.9600 . ?
C19 H19C 0.9600 . ?
C16 C15 1.526(3) . ?
C16 H16A 0.9600 . ?
C16 H16B 0.9600 . ?
C16 H16C 0.9600 . ?
C26 C25 1.370(3) . ?
C26 H26 0.9300 . ?
C25 C24 1.360(3) . ?
C25 H25 0.9300 . ?
C14 H14A 0.9600 . ?
C14 H14B 0.9600 . ?
C14 H14C 0.9600 . ?
C8 H8 0.9300 . ?
C24 H24 0.9300 . ?
C20 H20A 0.9600 . ?
C20 H20B 0.9600 . ?
C20 H20C 0.9600 . ?
C15 C17 1.529(3) . ?
C15 H15 0.9800 . ?
C17 H17A 0.9600 . ?
C17 H17B 0.9600 . ?
C17 H17C 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
C11 Si1 C15 114.67(9) . . ?
C11 Si1 C12 109.79(8) . . ?
C15 Si1 C12 109.88(9) . . ?
C11 Si1 C18 98.97(8) . . ?
C15 Si1 C18 111.31(9) . . ?
C12 Si1 C18 111.88(9) . . ?
C3 N2 C18 124.87(14) . . ?
C5 C4 C9 118.74(16) . . ?
C5 C4 C3 121.96(16) . . ?
C9 C4 C3 119.29(14) . . ?
C1 N1 C9 122.50(14) . . ?
C1 N1 C21 117.32(14) . . ?
C9 N1 C21 119.97(14) . . ?
O1 C1 N1 120.53(16) . . ?
O1 C1 C2 121.86(16) . . ?
N1 C1 C2 117.50(14) . . ?
C8 C9 C4 120.25(16) . . ?
C8 C9 N1 120.68(16) . . ?
C4 C9 N1 119.04(15) . . ?
C13 C12 C14 110.79(18) . . ?
C13 C12 Si1 113.38(15) . . ?
C14 C12 Si1 113.46(13) . . ?
C13 C12 H12 106.2 . . ?
C14 C12 H12 106.2 . . ?
Si1 C12 H12 106.2 . . ?
N1 C21 C22 116.07(14) . . ?
N1 C21 H21A 108.3 . . ?
C22 C21 H21A 108.3 . . ?
N1 C21 H21B 108.3 . . ?
C22 C21 H21B 108.3 . . ?
H21A C21 H21B 107.4 . . ?
C26 C27 C22 120.27(19) . . ?
C26 C27 H27 119.9 . . ?
C22 C27 H27 119.9 . . ?
C6 C5 C4 121.09(19) . . ?
C6 C5 H5 119.5 . . ?
C4 C5 H5 119.5 . . ?
C6 C7 C8 120.93(19) . . ?
C6 C7 H7 119.5 . . ?
C8 C7 H7 119.5 . . ?
C2 C11 Si1 114.67(11) . . ?
C2 C11 H11A 108.6 . . ?
Si1 C11 H11A 108.6 . . ?
C2 C11 H11B 108.6 . . ?
Si1 C11 H11B 108.6 . . ?
H11A C11 H11B 107.6 . . ?
C2 C10 H10A 109.5 . . ?
C2 C10 H10B 109.5 . . ?
H10A C10 H10B 109.5 . . ?
C2 C10 H10C 109.5 . . ?
H10A C10 H10C 109.5 . . ?
H10B C10 H10C 109.5 . . ?
N2 C3 C4 116.84(14) . . ?
N2 C3 C2 130.80(15) . . ?
C4 C3 C2 112.36(13) . . ?
C12 C13 H13A 109.5 . . ?
C12 C13 H13B 109.5 . . ?
H13A C13 H13B 109.5 . . ?
C12 C13 H13C 109.5 . . ?
H13A C13 H13C 109.5 . . ?
H13B C13 H13C 109.5 . . ?
C27 C22 C23 118.54(16) . . ?
C27 C22 C21 117.83(15) . . ?
C23 C22 C21 123.51(15) . . ?
N2 C18 C20 106.64(15) . . ?
N2 C18 C19 105.44(16) . . ?
C20 C18 C19 108.91(18) . . ?
N2 C18 Si1 109.80(11) . . ?
C20 C18 Si1 112.30(15) . . ?
C19 C18 Si1 113.33(14) . . ?
C7 C6 C5 119.5(2) . . ?
C7 C6 H6 120.2 . . ?
C5 C6 H6 120.2 . . ?
C1 C2 C3 108.79(13) . . ?
C1 C2 C11 109.32(14) . . ?
C3 C2 C11 115.46(13) . . ?
C1 C2 C10 105.03(13) . . ?
C3 C2 C10 107.98(14) . . ?
C11 C2 C10 109.75(14) . . ?
C24 C23 C22 120.92(18) . . ?
C24 C23 H23 119.5 . . ?
C22 C23 H23 119.5 . . ?
C18 C19 H19A 109.5 . . ?
C18 C19 H19B 109.5 . . ?
H19A C19 H19B 109.5 . . ?
C18 C19 H19C 109.5 . . ?
H19A C19 H19C 109.5 . . ?
H19B C19 H19C 109.5 . . ?
C15 C16 H16A 109.5 . . ?
C15 C16 H16B 109.5 . . ?
H16A C16 H16B 109.5 . . ?
C15 C16 H16C 109.5 . . ?
H16A C16 H16C 109.5 . . ?
H16B C16 H16C 109.5 . . ?
C25 C26 C27 120.6(2) . . ?
C25 C26 H26 119.7 . . ?
C27 C26 H26 119.7 . . ?
C24 C25 C26 119.8(2) . . ?
C24 C25 H25 120.1 . . ?
C26 C25 H25 120.1 . . ?
C12 C14 H14A 109.5 . . ?
C12 C14 H14B 109.5 . . ?
H14A C14 H14B 109.5 . . ?
C12 C14 H14C 109.5 . . ?
H14A C14 H14C 109.5 . . ?
H14B C14 H14C 109.5 . . ?
C7 C8 C9 119.39(19) . . ?
C7 C8 H8 120.3 . . ?
C9 C8 H8 120.3 . . ?
C25 C24 C23 119.9(2) . . ?
C25 C24 H24 120.1 . . ?
C23 C24 H24 120.1 . . ?
C18 C20 H20A 109.5 . . ?
C18 C20 H20B 109.5 . . ?
H20A C20 H20B 109.5 . . ?
C18 C20 H20C 109.5 . . ?
H20A C20 H20C 109.5 . . ?
H20B C20 H20C 109.5 . . ?
C16 C15 C17 109.66(19) . . ?
C16 C15 Si1 112.60(15) . . ?
C17 C15 Si1 115.74(13) . . ?
C16 C15 H15 106.0 . . ?
C17 C15 H15 106.0 . . ?
Si1 C15 H15 106.0 . . ?
C15 C17 H17A 109.5 . . ?
C15 C17 H17B 109.5 . . ?
H17A C17 H17B 109.5 . . ?
C15 C17 H17C 109.5 . . ?
H17A C17 H17C 109.5 . . ?
H17B C17 H17C 109.5 . . ?

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
C9 N1 C1 O1 -177.88(15) . . . . ?
C21 N1 C1 O1 -3.2(2) . . . . ?
C9 N1 C1 C2 5.7(2) . . . . ?
C21 N1 C1 C2 -179.67(13) . . . . ?
C5 C4 C9 C8 -2.6(2) . . . . ?
C3 C4 C9 C8 177.77(15) . . . . ?
C5 C4 C9 N1 175.33(15) . . . . ?
C3 C4 C9 N1 -4.3(2) . . . . ?
C1 N1 C9 C8 -163.88(15) . . . . ?
C21 N1 C9 C8 21.6(2) . . . . ?
C1 N1 C9 C4 18.2(2) . . . . ?
C21 N1 C9 C4 -156.26(15) . . . . ?
C11 Si1 C12 C13 41.94(18) . . . . ?
C15 Si1 C12 C13 -85.05(17) . . . . ?
C18 Si1 C12 C13 150.79(16) . . . . ?
C11 Si1 C12 C14 169.47(16) . . . . ?
C15 Si1 C12 C14 42.48(19) . . . . ?
C18 Si1 C12 C14 -81.68(18) . . . . ?
C1 N1 C21 C22 89.05(19) . . . . ?
C9 N1 C21 C22 -96.18(18) . . . . ?
C9 C4 C5 C6 0.4(3) . . . . ?
C3 C4 C5 C6 -179.93(17) . . . . ?
C15 Si1 C11 C2 -70.55(15) . . . . ?
C12 Si1 C11 C2 165.19(13) . . . . ?
C18 Si1 C11 C2 47.95(14) . . . . ?
C18 N2 C3 C4 -179.99(15) . . . . ?
C18 N2 C3 C2 0.4(3) . . . . ?
C5 C4 C3 N2 -30.0(2) . . . . ?
C9 C4 C3 N2 149.69(15) . . . . ?
C5 C4 C3 C2 149.69(16) . . . . ?
C9 C4 C3 C2 -30.66(19) . . . . ?
C26 C27 C22 C23 -0.3(3) . . . . ?
C26 C27 C22 C21 176.0(2) . . . . ?
N1 C21 C22 C27 166.61(16) . . . . ?
N1 C21 C22 C23 -17.4(3) . . . . ?
C3 N2 C18 C20 -88.4(2) . . . . ?
C3 N2 C18 C19 155.89(18) . . . . ?
C3 N2 C18 Si1 33.5(2) . . . . ?
C11 Si1 C18 N2 -51.50(14) . . . . ?
C15 Si1 C18 N2 69.50(14) . . . . ?
C12 Si1 C18 N2 -167.15(12) . . . . ?
C11 Si1 C18 C20 66.96(15) . . . . ?
C15 Si1 C18 C20 -172.04(14) . . . . ?
C12 Si1 C18 C20 -48.68(16) . . . . ?
C11 Si1 C18 C19 -169.11(16) . . . . ?
C15 Si1 C18 C19 -48.11(18) . . . . ?
C12 Si1 C18 C19 75.25(18) . . . . ?
C8 C7 C6 C5 -1.0(3) . . . . ?
C4 C5 C6 C7 1.4(3) . . . . ?
O1 C1 C2 C3 144.41(16) . . . . ?
N1 C1 C2 C3 -39.22(18) . . . . ?
O1 C1 C2 C11 17.5(2) . . . . ?
N1 C1 C2 C11 -166.11(13) . . . . ?
O1 C1 C2 C10 -100.19(18) . . . . ?
N1 C1 C2 C10 76.18(17) . . . . ?
N2 C3 C2 C1 -130.19(18) . . . . ?
C4 C3 C2 C1 50.23(17) . . . . ?
N2 C3 C2 C11 -6.9(2) . . . . ?
C4 C3 C2 C11 173.53(13) . . . . ?
N2 C3 C2 C10 116.34(19) . . . . ?
C4 C3 C2 C10 -63.24(17) . . . . ?
Si1 C11 C2 C1 99.42(14) . . . . ?
Si1 C11 C2 C3 -23.59(18) . . . . ?
Si1 C11 C2 C10 -145.88(13) . . . . ?
C27 C22 C23 C24 0.4(3) . . . . ?
C21 C22 C23 C24 -175.59(18) . . . . ?
C22 C27 C26 C25 0.0(4) . . . . ?
C27 C26 C25 C24 0.1(4) . . . . ?
C6 C7 C8 C9 -1.1(3) . . . . ?
C4 C9 C8 C7 2.9(3) . . . . ?
N1 C9 C8 C7 -174.93(17) . . . . ?
C26 C25 C24 C23 0.0(4) . . . . ?
C22 C23 C24 C25 -0.3(3) . . . . ?
C11 Si1 C15 C16 -62.60(18) . . . . ?
C12 Si1 C15 C16 61.62(18) . . . . ?
C18 Si1 C15 C16 -173.89(16) . . . . ?
C11 Si1 C15 C17 64.65(19) . . . . ?
C12 Si1 C15 C17 -171.13(16) . . . . ?
C18 Si1 C15 C17 -46.64(19) . . . . ?

_diffrn_measured_fraction_theta_max 0.989
_diffrn_reflns_theta_full        27.49
_diffrn_measured_fraction_theta_full 0.989
_refine_diff_density_max         0.219
_refine_diff_density_min         -0.203
_refine_diff_density_rms         0.032
