# 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_170320a_0m
_database_code_depnum_ccdc_archive 'CCDC 1544157'
_audit_update_record             
;
2017-04-15 deposited with the CCDC.
2017-08-23 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-97
_chemical_name_systematic        S-Sumanene
_chemical_name_common            S-Sumanene
_chemical_melting_point          ?
_chemical_formula_moiety         C18H6S3
_chemical_formula_sum            'C18 H6 S3'
_chemical_formula_weight         318.41

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'
S S 0.1246 0.1234 '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)

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

_cell_length_a                   9.785(3)
_cell_length_b                   7.3055(19)
_cell_length_c                   9.929(3)
_cell_angle_alpha                90.00
_cell_angle_beta                 118.840(2)
_cell_angle_gamma                90.00
_cell_volume                     621.7(3)
_cell_formula_units_Z            2
_cell_measurement_temperature    296(2)
_cell_measurement_reflns_used    1312
_cell_measurement_theta_min      2.34
_cell_measurement_theta_max      26.43

_exptl_crystal_description       Cuboid
_exptl_crystal_colour            colorless
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.05
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.701
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             324
_exptl_absorpt_coefficient_mu    0.581
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.8828
_exptl_absorpt_correction_T_max  0.9715
_exptl_absorpt_process_details   sadabs

_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            3230
_diffrn_reflns_av_R_equivalents  0.0214
_diffrn_reflns_av_sigmaI/netI    0.0386
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_theta_min         2.34
_diffrn_reflns_theta_max         25.04
_reflns_number_total             2023
_reflns_number_gt                1862
_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)+(0.0363P)²+0.0433P] 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     none
_refine_ls_extinction_coef       ?
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.11(9)
_refine_ls_number_reflns         2023
_refine_ls_number_parameters     190
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.0361
_refine_ls_R_factor_gt           0.0317
_refine_ls_wR_factor_ref         0.0732
_refine_ls_wR_factor_gt          0.0700
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_restrained_S_all      1.044
_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_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
C1 C 0.3481(3) 0.4162(5) 0.6262(3) 0.0305(7) Uani 1 1 d . . .
C2 C 0.4633(4) 0.4985(5) 0.5988(4) 0.0371(8) Uani 1 1 d . . .
H2 H 0.5584 0.5322 0.6817 0.045 Uiso 1 1 calc R . .
C3 C 0.4367(3) 0.5297(5) 0.4498(3) 0.0329(8) Uani 1 1 d . . .
H3 H 0.5146 0.5830 0.4348 0.040 Uiso 1 1 calc R . .
C4 C 0.2948(4) 0.4824(4) 0.3223(3) 0.0309(7) Uani 1 1 d . . .
C5 C 0.1852(3) 0.3900(4) 0.3487(3) 0.0272(7) Uani 1 1 d . . .
C6 C 0.0315(3) 0.3942(4) 0.2262(3) 0.0289(7) Uani 1 1 d . . .
C7 C 0.0124(4) 0.4910(4) 0.0976(3) 0.0311(7) Uani 1 1 d . . .
C8 C -0.1409(4) 0.5451(5) -0.0098(3) 0.0353(8) Uani 1 1 d . . .
H8 H -0.1591 0.6026 -0.1005 0.042 Uiso 1 1 calc R . .
C9 C -0.2650(4) 0.5134(5) 0.0187(3) 0.0351(8) Uani 1 1 d . . .
H9 H -0.3647 0.5513 -0.0530 0.042 Uiso 1 1 calc R . .
C10 C -0.2423(3) 0.4251(5) 0.1540(3) 0.0311(7) Uani 1 1 d . . .
C11 C -0.0938(3) 0.3619(4) 0.2523(3) 0.0277(7) Uani 1 1 d . . .
C12 C -0.0658(4) 0.3233(4) 0.4048(3) 0.0271(7) Uani 1 1 d . . .
C13 C -0.1932(3) 0.3524(4) 0.4273(3) 0.0292(7) Uani 1 1 d . . .
C14 C -0.1623(4) 0.3647(4) 0.5819(3) 0.0327(8) Uani 1 1 d . . .
H14 H -0.2451 0.3730 0.6027 0.039 Uiso 1 1 calc R . .
C15 C -0.0107(4) 0.3646(4) 0.7027(3) 0.0344(8) Uani 1 1 d . . .
H15 H 0.0061 0.3731 0.8030 0.041 Uiso 1 1 calc R . .
C16 C 0.1183(4) 0.3520(4) 0.6768(3) 0.0299(7) Uani 1 1 d . . .
C17 C 0.0862(3) 0.3231(4) 0.5258(3) 0.0278(7) Uani 1 1 d . . .
C18 C 0.2137(3) 0.3573(4) 0.4985(3) 0.0272(7) Uani 1 1 d . . .
S1 S 0.31878(9) 0.41023(13) 0.79043(8) 0.0359(2) Uani 1 1 d . . .
S2 S -0.35790(8) 0.41324(13) 0.24830(8) 0.0354(2) Uani 1 1 d . . .
S3 S 0.19980(10) 0.56072(13) 0.12634(9) 0.0374(2) Uani 1 1 d . . .


_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
C1 C18 1.383(4) . ?
C1 C2 1.415(4) . ?
C1 S1 1.787(3) . ?
C2 C3 1.392(4) . ?
C2 H2 0.9300 . ?
C3 C4 1.398(4) . ?
C3 H3 0.9300 . ?
C4 C5 1.394(4) . ?
C4 S3 1.798(3) . ?
C5 C18 1.396(4) . ?
C5 C6 1.406(4) . ?
C6 C11 1.390(4) . ?
C6 C7 1.392(4) . ?
C7 C8 1.415(4) . ?
C7 S3 1.788(3) . ?
C8 C9 1.392(4) . ?
C8 H8 0.9300 . ?
C9 C10 1.409(4) . ?
C9 H9 0.9300 . ?
C10 C11 1.381(4) . ?
C10 S2 1.785(3) . ?
C11 C12 1.431(4) . ?
C12 C13 1.384(4) . ?
C12 C17 1.390(4) . ?
C13 C14 1.417(4) . ?
C13 S2 1.786(3) . ?
C14 C15 1.386(4) . ?
C14 H14 0.9300 . ?
C15 C16 1.408(4) . ?
C15 H15 0.9300 . ?
C16 C17 1.391(4) . ?
C16 S1 1.780(3) . ?
C17 C18 1.421(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
C18 C1 C2 116.7(3) . . ?
C18 C1 S1 109.2(2) . . ?
C2 C1 S1 132.8(2) . . ?
C3 C2 C1 121.1(3) . . ?
C3 C2 H2 119.5 . . ?
C1 C2 H2 119.5 . . ?
C2 C3 C4 121.1(3) . . ?
C2 C3 H3 119.4 . . ?
C4 C3 H3 119.4 . . ?
C5 C4 C3 117.8(3) . . ?
C5 C4 S3 108.3(2) . . ?
C3 C4 S3 132.1(2) . . ?
C4 C5 C18 120.5(3) . . ?
C4 C5 C6 115.2(3) . . ?
C18 C5 C6 120.4(3) . . ?
C11 C6 C7 121.2(3) . . ?
C11 C6 C5 120.5(2) . . ?
C7 C6 C5 114.7(3) . . ?
C6 C7 C8 117.2(3) . . ?
C6 C7 S3 109.0(2) . . ?
C8 C7 S3 132.4(2) . . ?
C9 C8 C7 120.8(3) . . ?
C9 C8 H8 119.6 . . ?
C7 C8 H8 119.6 . . ?
C8 C9 C10 121.2(3) . . ?
C8 C9 H9 119.4 . . ?
C10 C9 H9 119.4 . . ?
C11 C10 C9 117.1(3) . . ?
C11 C10 S2 109.3(2) . . ?
C9 C10 S2 132.4(2) . . ?
C10 C11 C6 122.2(3) . . ?
C10 C11 C12 114.4(3) . . ?
C6 C11 C12 119.6(3) . . ?
C13 C12 C17 122.1(3) . . ?
C13 C12 C11 114.4(3) . . ?
C17 C12 C11 119.6(3) . . ?
C12 C13 C14 116.5(3) . . ?
C12 C13 S2 109.2(2) . . ?
C14 C13 S2 132.9(2) . . ?
C15 C14 C13 121.1(3) . . ?
C15 C14 H14 119.4 . . ?
C13 C14 H14 119.4 . . ?
C14 C15 C16 121.4(3) . . ?
C14 C15 H15 119.3 . . ?
C16 C15 H15 119.3 . . ?
C17 C16 C15 116.8(3) . . ?
C17 C16 S1 109.0(2) . . ?
C15 C16 S1 132.8(2) . . ?
C12 C17 C16 121.5(3) . . ?
C12 C17 C18 120.4(3) . . ?
C16 C17 C18 114.6(3) . . ?
C1 C18 C5 122.5(3) . . ?
C1 C18 C17 114.4(3) . . ?
C5 C18 C17 119.4(3) . . ?
C16 S1 C1 92.30(13) . . ?
C10 S2 C13 92.17(14) . . ?
C7 S3 C4 92.13(14) . . ?

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
C18 C1 C2 C3 4.5(5) . . . . ?
S1 C1 C2 C3 -160.7(3) . . . . ?
C1 C2 C3 C4 0.6(5) . . . . ?
C2 C3 C4 C5 -4.9(5) . . . . ?
C2 C3 C4 S3 158.3(3) . . . . ?
C3 C4 C5 C18 4.1(5) . . . . ?
S3 C4 C5 C18 -162.8(2) . . . . ?
C3 C4 C5 C6 161.7(3) . . . . ?
S3 C4 C5 C6 -5.2(3) . . . . ?
C4 C5 C6 C11 -159.1(3) . . . . ?
C18 C5 C6 C11 -1.4(5) . . . . ?
C4 C5 C6 C7 -0.3(4) . . . . ?
C18 C5 C6 C7 157.4(3) . . . . ?
C11 C6 C7 C8 -3.8(5) . . . . ?
C5 C6 C7 C8 -162.4(3) . . . . ?
C11 C6 C7 S3 164.3(2) . . . . ?
C5 C6 C7 S3 5.7(3) . . . . ?
C6 C7 C8 C9 4.4(5) . . . . ?
S3 C7 C8 C9 -160.2(3) . . . . ?
C7 C8 C9 C10 -0.6(5) . . . . ?
C8 C9 C10 C11 -3.8(5) . . . . ?
C8 C9 C10 S2 162.0(3) . . . . ?
C9 C10 C11 C6 4.5(5) . . . . ?
S2 C10 C11 C6 -164.4(2) . . . . ?
C9 C10 C11 C12 162.6(3) . . . . ?
S2 C10 C11 C12 -6.3(4) . . . . ?
C7 C6 C11 C10 -0.7(5) . . . . ?
C5 C6 C11 C10 156.7(3) . . . . ?
C7 C6 C11 C12 -157.7(3) . . . . ?
C5 C6 C11 C12 -0.3(5) . . . . ?
C10 C11 C12 C13 1.2(4) . . . . ?
C6 C11 C12 C13 159.9(3) . . . . ?
C10 C11 C12 C17 -157.0(3) . . . . ?
C6 C11 C12 C17 1.7(4) . . . . ?
C17 C12 C13 C14 -5.9(4) . . . . ?
C11 C12 C13 C14 -163.5(3) . . . . ?
C17 C12 C13 S2 162.2(2) . . . . ?
C11 C12 C13 S2 4.5(3) . . . . ?
C12 C13 C14 C15 5.8(5) . . . . ?
S2 C13 C14 C15 -158.7(3) . . . . ?
C13 C14 C15 C16 -0.1(5) . . . . ?
C14 C15 C16 C17 -5.6(5) . . . . ?
C14 C15 C16 S1 159.5(3) . . . . ?
C13 C12 C17 C16 0.2(5) . . . . ?
C11 C12 C17 C16 156.6(3) . . . . ?
C13 C12 C17 C18 -157.8(3) . . . . ?
C11 C12 C17 C18 -1.3(4) . . . . ?
C15 C16 C17 C12 5.6(4) . . . . ?
S1 C16 C17 C12 -162.9(2) . . . . ?
C15 C16 C17 C18 164.8(3) . . . . ?
S1 C16 C17 C18 -3.7(3) . . . . ?
C2 C1 C18 C5 -5.3(5) . . . . ?
S1 C1 C18 C5 163.2(3) . . . . ?
C2 C1 C18 C17 -163.5(3) . . . . ?
S1 C1 C18 C17 5.0(4) . . . . ?
C4 C5 C18 C1 1.1(5) . . . . ?
C6 C5 C18 C1 -155.4(3) . . . . ?
C4 C5 C18 C17 158.2(3) . . . . ?
C6 C5 C18 C17 1.8(5) . . . . ?
C12 C17 C18 C1 158.5(3) . . . . ?
C16 C17 C18 C1 -0.9(4) . . . . ?
C12 C17 C18 C5 -0.4(4) . . . . ?
C16 C17 C18 C5 -159.8(3) . . . . ?
C17 C16 S1 C1 5.5(2) . . . . ?
C15 C16 S1 C1 -160.5(3) . . . . ?
C18 C1 S1 C16 -6.0(3) . . . . ?
C2 C1 S1 C16 160.0(3) . . . . ?
C11 C10 S2 C13 7.5(3) . . . . ?
C9 C10 S2 C13 -159.1(3) . . . . ?
C12 C13 S2 C10 -6.8(2) . . . . ?
C14 C13 S2 C10 158.5(3) . . . . ?
C6 C7 S3 C4 -7.2(2) . . . . ?
C8 C7 S3 C4 158.3(3) . . . . ?
C5 C4 S3 C7 7.0(2) . . . . ?
C3 C4 S3 C7 -157.3(3) . . . . ?

_diffrn_measured_fraction_theta_max 0.993
_diffrn_reflns_theta_full        25.04
_diffrn_measured_fraction_theta_full 0.993
_refine_diff_density_max         0.197
_refine_diff_density_min         -0.232
_refine_diff_density_rms         0.045
####################################################################### 
# 
# 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_ZDD-Si-Sum
_database_code_depnum_ccdc_archive 'CCDC 1519866'
_audit_update_record             
;
2017-08-21 deposited with the CCDC.
2017-08-23 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-97
_chemical_name_systematic        Si-Sumanene
_chemical_name_common            Si-Sum
_chemical_melting_point          ?
_chemical_formula_moiety         C24H24Si3
_chemical_formula_sum            'C24 H24 Si3'
_chemical_formula_weight         396.70

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'
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                   12.0400(14)
_cell_length_b                   20.685(2)
_cell_length_c                   18.893(2)
_cell_angle_alpha                90.00
_cell_angle_beta                 93.345(2)
_cell_angle_gamma                90.00
_cell_volume                     4697.4(10)
_cell_formula_units_Z            8
_cell_measurement_temperature    296(2)
_cell_measurement_reflns_used    3384
_cell_measurement_theta_min      2.19
_cell_measurement_theta_max      21.32

_exptl_crystal_description       block
_exptl_crystal_colour            colorless
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.05
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.122
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1680
_exptl_absorpt_coefficient_mu    0.208
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.9537
_exptl_absorpt_correction_T_max  0.9897
_exptl_absorpt_process_details   'SADABS (Sheldrick,1996)'

_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  'Siemens SMART CCD'
_diffrn_measurement_method       ?
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            29232
_diffrn_reflns_av_R_equivalents  0.0518
_diffrn_reflns_av_sigmaI/netI    0.0735
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_theta_min         1.96
_diffrn_reflns_theta_max         27.66
_reflns_number_total             10867
_reflns_number_gt                5090
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       ?
_computing_cell_refinement       ?
_computing_data_reduction        ?
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_molecular_graphics    ?
_computing_publication_material  ?

_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)+(0.1675P)²+0.4879P] 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     none
_refine_ls_extinction_coef       ?
_refine_ls_number_reflns         10867
_refine_ls_number_parameters     487
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.1372
_refine_ls_R_factor_gt           0.0557
_refine_ls_wR_factor_ref         0.2445
_refine_ls_wR_factor_gt          0.1687
_refine_ls_goodness_of_fit_ref   0.806
_refine_ls_restrained_S_all      0.806
_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_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_disorder_assembly
_atom_site_disorder_group
C1 C -0.1104(3) 0.45540(18) 0.7580(2) 0.0676(10) Uani 1 1 d . . .
H1A H -0.0747 0.4915 0.7779 0.081 Uiso 1 1 calc R . .
C2 C -0.1981(3) 0.46427(19) 0.7059(2) 0.0689(10) Uani 1 1 d . . .
H2A H -0.2194 0.5062 0.6936 0.083 Uiso 1 1 calc R . .
C3 C -0.2540(3) 0.41277(18) 0.6724(2) 0.0610(9) Uani 1 1 d . . .
C4 C -0.2176(3) 0.35096(17) 0.69502(18) 0.0530(8) Uani 1 1 d . . .
C5 C -0.1334(3) 0.34197(16) 0.74735(17) 0.0505(8) Uani 1 1 d . . .
C6 C -0.0760(3) 0.39407(18) 0.78061(18) 0.0587(9) Uani 1 1 d . . .
C7 C -0.0983(3) 0.27707(16) 0.76700(17) 0.0501(8) Uani 1 1 d . . .
C8 C -0.1472(3) 0.22412(16) 0.73385(17) 0.0502(8) Uani 1 1 d . . .
C9 C -0.2363(3) 0.23334(17) 0.67945(18) 0.0535(8) Uani 1 1 d . . .
C10 C -0.2707(3) 0.29530(17) 0.66101(18) 0.0562(9) Uani 1 1 d . . .
C11 C -0.3551(3) 0.3072(2) 0.6076(2) 0.0655(10) Uani 1 1 d . . .
C12 C -0.4019(3) 0.2527(2) 0.5761(2) 0.0828(13) Uani 1 1 d . . .
H12A H -0.4595 0.2578 0.5415 0.099 Uiso 1 1 calc R . .
C13 C -0.3665(3) 0.1896(2) 0.5940(2) 0.0790(12) Uani 1 1 d . . .
H13A H -0.3999 0.1546 0.5702 0.095 Uiso 1 1 calc R . .
C14 C -0.2822(3) 0.17825(18) 0.6466(2) 0.0639(10) Uani 1 1 d . . .
C15 C -0.1132(3) 0.16029(16) 0.74922(18) 0.0545(8) Uani 1 1 d . . .
C16 C -0.0263(3) 0.15421(18) 0.80060(19) 0.0620(10) Uani 1 1 d . . .
H16A H -0.0003 0.1131 0.8127 0.074 Uiso 1 1 calc R . .
C17 C 0.0237(3) 0.20791(19) 0.83481(19) 0.0650(10) Uani 1 1 d . . .
H17A H 0.0812 0.2013 0.8691 0.078 Uiso 1 1 calc R . .
C18 C 0.1767(4) 0.3748(2) 0.8263(3) 0.0986(16) Uani 1 1 d . . .
H18A H 0.2269 0.3545 0.8609 0.148 Uiso 1 1 calc R . .
H18B H 0.1878 0.4208 0.8277 0.148 Uiso 1 1 calc R . .
H18C H 0.1908 0.3589 0.7800 0.148 Uiso 1 1 calc R . .
C19 C 0.0058(5) 0.3729(2) 0.9407(2) 0.1025(17) Uani 1 1 d . . .
H19A H 0.0626 0.3526 0.9708 0.154 Uiso 1 1 calc R . .
H19B H -0.0656 0.3561 0.9513 0.154 Uiso 1 1 calc R . .
H19C H 0.0072 0.4188 0.9487 0.154 Uiso 1 1 calc R . .
C20 C -0.0102(3) 0.27075(17) 0.81885(18) 0.0563(9) Uani 1 1 d . . .
C21 C -0.3528(4) 0.4305(2) 0.5129(3) 0.0997(16) Uani 1 1 d . . .
H21A H -0.4168 0.4205 0.4822 0.149 Uiso 1 1 calc R . .
H21B H -0.2879 0.4112 0.4946 0.149 Uiso 1 1 calc R . .
H21C H -0.3432 0.4766 0.5155 0.149 Uiso 1 1 calc R . .
C22 C -0.5090(4) 0.4256(3) 0.6350(4) 0.126(2) Uani 1 1 d . . .
H22A H -0.5669 0.4173 0.5990 0.190 Uiso 1 1 calc R . .
H22B H -0.5056 0.4712 0.6448 0.190 Uiso 1 1 calc R . .
H22C H -0.5246 0.4026 0.6774 0.190 Uiso 1 1 calc R . .
C23 C -0.2869(4) 0.0472(2) 0.7349(3) 0.0940(14) Uani 1 1 d . . .
H23A H -0.2397 0.0130 0.7534 0.141 Uiso 1 1 calc R . .
H23B H -0.3433 0.0296 0.7025 0.141 Uiso 1 1 calc R . .
H23C H -0.3213 0.0683 0.7732 0.141 Uiso 1 1 calc R . .
C24 C -0.1190(4) 0.0658(2) 0.6211(2) 0.0983(15) Uani 1 1 d . . .
H24A H -0.0794 0.0301 0.6431 0.147 Uiso 1 1 calc R . .
H24B H -0.0669 0.0958 0.6029 0.147 Uiso 1 1 calc R . .
H24C H -0.1678 0.0501 0.5829 0.147 Uiso 1 1 calc R . .
C25 C 0.2353(3) 0.35300(19) 0.10148(19) 0.0622(9) Uani 1 1 d . . .
C26 C 0.1582(3) 0.3294(2) 0.1473(2) 0.0774(12) Uani 1 1 d . . .
H26A H 0.1342 0.3562 0.1829 0.093 Uiso 1 1 calc R . .
C27 C 0.1156(3) 0.2663(2) 0.1413(2) 0.0823(13) Uani 1 1 d . . .
H27A H 0.0641 0.2531 0.1731 0.099 Uiso 1 1 calc R . .
C28 C 0.1469(3) 0.2226(2) 0.0898(2) 0.0678(10) Uani 1 1 d . . .
C29 C 0.2255(3) 0.24686(17) 0.04385(18) 0.0539(8) Uani 1 1 d . . .
C30 C 0.2672(3) 0.30913(17) 0.04991(17) 0.0521(8) Uani 1 1 d . . .
C31 C 0.3453(3) 0.33182(16) 0.00001(17) 0.0497(8) Uani 1 1 d . . .
C32 C 0.3792(3) 0.29091(15) -0.05265(17) 0.0477(7) Uani 1 1 d . . .
C33 C 0.3375(3) 0.22578(15) -0.05832(17) 0.0501(8) Uani 1 1 d . . .
C34 C 0.2609(3) 0.20397(16) -0.01087(17) 0.0503(8) Uani 1 1 d . . .
C35 C 0.2145(3) 0.14190(17) -0.0155(2) 0.0596(9) Uani 1 1 d . . .
C36 C 0.2505(3) 0.10279(19) -0.0692(2) 0.0694(10) Uani 1 1 d . . .
H36A H 0.2216 0.0613 -0.0746 0.083 Uiso 1 1 calc R . .
C37 C 0.3305(4) 0.12465(18) -0.1164(2) 0.0738(11) Uani 1 1 d . . .
H37A H 0.3536 0.0965 -0.1510 0.089 Uiso 1 1 calc R . .
C38 C 0.3755(3) 0.18675(17) -0.11253(19) 0.0609(9) Uani 1 1 d . . .
C39 C 0.4540(3) 0.31121(17) -0.10324(19) 0.0565(9) Uani 1 1 d . . .
C40 C 0.4908(3) 0.37469(17) -0.0967(2) 0.0687(11) Uani 1 1 d . . .
H40A H 0.5403 0.3903 -0.1286 0.082 Uiso 1 1 calc R . .
C41 C 0.4556(3) 0.41613(18) -0.0433(2) 0.0687(10) Uani 1 1 d . . .
H41A H 0.4818 0.4584 -0.0416 0.082 Uiso 1 1 calc R . .
C42 C 0.3831(3) 0.39609(17) 0.00683(18) 0.0557(8) Uani 1 1 d . . .
C43 C 0.4152(4) 0.4468(2) 0.1633(2) 0.0841(13) Uani 1 1 d . . .
H43A H 0.3761 0.4637 0.2021 0.126 Uiso 1 1 calc R . .
H43B H 0.4690 0.4778 0.1494 0.126 Uiso 1 1 calc R . .
H43C H 0.4524 0.4075 0.1778 0.126 Uiso 1 1 calc R . .
C44 C 0.2263(4) 0.5016(2) 0.0660(2) 0.0948(15) Uani 1 1 d . . .
H44A H 0.1944 0.5169 0.1083 0.142 Uiso 1 1 calc R . .
H44B H 0.1679 0.4899 0.0317 0.142 Uiso 1 1 calc R . .
H44C H 0.2708 0.5352 0.0470 0.142 Uiso 1 1 calc R . .
C45 C -0.0346(4) 0.1314(3) 0.0206(3) 0.126(2) Uani 1 1 d . . .
H45A H -0.0486 0.0880 0.0045 0.189 Uiso 1 1 calc R . .
H45B H -0.0466 0.1608 -0.0185 0.189 Uiso 1 1 calc R . .
H45C H -0.0841 0.1420 0.0569 0.189 Uiso 1 1 calc R . .
C46 C 0.1442(5) 0.0725(3) 0.1224(3) 0.1090(17) Uani 1 1 d . . .
H46A H 0.1238 0.0315 0.1016 0.163 Uiso 1 1 calc R . .
H46B H 0.1032 0.0794 0.1638 0.163 Uiso 1 1 calc R . .
H46C H 0.2224 0.0727 0.1354 0.163 Uiso 1 1 calc R . .
C47 C 0.6232(4) 0.2087(3) -0.1483(3) 0.119(2) Uani 1 1 d . . .
H47A H 0.6333 0.1717 -0.1779 0.178 Uiso 1 1 calc R . .
H47B H 0.6382 0.1969 -0.0996 0.178 Uiso 1 1 calc R . .
H47C H 0.6733 0.2424 -0.1608 0.178 Uiso 1 1 calc R . .
C48 C 0.4340(5) 0.2507(2) -0.2559(2) 0.1082(18) Uani 1 1 d . . .
H48A H 0.4474 0.2120 -0.2820 0.162 Uiso 1 1 calc R . .
H48B H 0.4762 0.2856 -0.2743 0.162 Uiso 1 1 calc R . .
H48C H 0.3562 0.2611 -0.2605 0.162 Uiso 1 1 calc R . .
Si1 Si 0.03156(9) 0.35609(5) 0.84632(6) 0.0652(3) Uani 1 1 d . . .
Si2 Si -0.37292(9) 0.39797(6) 0.60335(7) 0.0735(4) Uani 1 1 d . . .
Si3 Si -0.20197(9) 0.10697(5) 0.68741(6) 0.0661(3) Uani 1 1 d . . .
Si4 Si 0.11132(10) 0.13823(6) 0.05685(6) 0.0748(4) Uani 1 1 d . . .
Si5 Si 0.31489(9) 0.42993(5) 0.08744(5) 0.0635(3) Uani 1 1 d . . .
Si6 Si 0.47649(10) 0.23817(5) -0.16142(6) 0.0699(3) Uani 1 1 d . . .


_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
C1 C6 1.394(5) . ?
C1 C2 1.413(5) . ?
C2 C3 1.392(5) . ?
C3 C4 1.410(5) . ?
C3 Si2 1.905(4) . ?
C4 C5 1.387(5) . ?
C4 C10 1.449(5) . ?
C5 C6 1.408(5) . ?
C5 C7 1.449(4) . ?
C6 Si1 1.910(3) . ?
C7 C8 1.377(5) . ?
C7 C20 1.407(5) . ?
C8 C15 1.408(4) . ?
C8 C9 1.454(5) . ?
C9 C10 1.385(5) . ?
C9 C14 1.396(5) . ?
C10 C11 1.411(5) . ?
C11 C12 1.380(6) . ?
C11 Si2 1.891(4) . ?
C12 C13 1.408(6) . ?
C13 C14 1.399(5) . ?
C14 Si3 1.901(4) . ?
C15 C16 1.391(5) . ?
C15 Si3 1.891(4) . ?
C16 C17 1.403(5) . ?
C17 C20 1.391(5) . ?
C18 Si1 1.850(5) . ?
C19 Si1 1.860(4) . ?
C20 Si1 1.900(4) . ?
C21 Si2 1.865(5) . ?
C22 Si2 1.867(5) . ?
C23 Si3 1.866(4) . ?
C24 Si3 1.855(4) . ?
C25 C26 1.395(5) . ?
C25 C30 1.401(5) . ?
C25 Si5 1.884(4) . ?
C26 C27 1.403(6) . ?
C27 C28 1.396(6) . ?
C28 C29 1.413(5) . ?
C28 Si4 1.894(4) . ?
C29 C30 1.384(5) . ?
C29 C34 1.445(5) . ?
C30 C31 1.448(4) . ?
C31 C32 1.386(4) . ?
C31 C42 1.409(5) . ?
C32 C39 1.415(4) . ?
C32 C33 1.439(4) . ?
C33 C34 1.398(4) . ?
C33 C38 1.401(5) . ?
C34 C35 1.401(5) . ?
C35 C36 1.387(5) . ?
C35 Si4 1.902(4) . ?
C36 C37 1.423(5) . ?
C37 C38 1.395(5) . ?
C38 Si6 1.896(4) . ?
C39 C40 1.389(5) . ?
C39 Si6 1.897(4) . ?
C40 C41 1.407(5) . ?
C41 C42 1.389(5) . ?
C42 Si5 1.905(3) . ?
C43 Si5 1.853(4) . ?
C44 Si5 1.858(4) . ?
C45 Si4 1.854(5) . ?
C46 Si4 1.866(5) . ?
C47 Si6 1.871(5) . ?
C48 Si6 1.846(5) . ?

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
C6 C1 C2 121.9(4) . . ?
C3 C2 C1 122.6(3) . . ?
C2 C3 C4 115.0(3) . . ?
C2 C3 Si2 139.3(3) . . ?
C4 C3 Si2 105.6(3) . . ?
C5 C4 C3 122.6(3) . . ?
C5 C4 C10 119.7(3) . . ?
C3 C4 C10 117.7(3) . . ?
C4 C5 C6 122.3(3) . . ?
C4 C5 C7 119.8(3) . . ?
C6 C5 C7 117.8(3) . . ?
C1 C6 C5 115.5(3) . . ?
C1 C6 Si1 138.7(3) . . ?
C5 C6 Si1 105.8(2) . . ?
C8 C7 C20 121.8(3) . . ?
C8 C7 C5 120.7(3) . . ?
C20 C7 C5 117.4(3) . . ?
C7 C8 C15 122.7(3) . . ?
C7 C8 C9 119.7(3) . . ?
C15 C8 C9 117.6(3) . . ?
C10 C9 C14 122.6(3) . . ?
C10 C9 C8 119.8(3) . . ?
C14 C9 C8 117.6(3) . . ?
C9 C10 C11 122.2(3) . . ?
C9 C10 C4 120.4(3) . . ?
C11 C10 C4 117.3(3) . . ?
C12 C11 C10 115.2(4) . . ?
C12 C11 Si2 138.6(3) . . ?
C10 C11 Si2 106.2(3) . . ?
C11 C12 C13 122.9(4) . . ?
C14 C13 C12 121.6(4) . . ?
C9 C14 C13 115.5(3) . . ?
C9 C14 Si3 105.9(3) . . ?
C13 C14 Si3 138.5(3) . . ?
C16 C15 C8 115.3(3) . . ?
C16 C15 Si3 138.9(3) . . ?
C8 C15 Si3 105.8(2) . . ?
C15 C16 C17 122.3(3) . . ?
C20 C17 C16 121.8(3) . . ?
C17 C20 C7 116.0(3) . . ?
C17 C20 Si1 137.7(3) . . ?
C7 C20 Si1 106.3(2) . . ?
C26 C25 C30 115.1(4) . . ?
C26 C25 Si5 138.2(3) . . ?
C30 C25 Si5 106.7(3) . . ?
C25 C26 C27 121.9(4) . . ?
C28 C27 C26 123.1(4) . . ?
C27 C28 C29 114.6(4) . . ?
C27 C28 Si4 139.5(3) . . ?
C29 C28 Si4 105.7(3) . . ?
C30 C29 C28 122.1(3) . . ?
C30 C29 C34 120.7(3) . . ?
C28 C29 C34 117.2(3) . . ?
C29 C30 C25 123.2(3) . . ?
C29 C30 C31 119.6(3) . . ?
C25 C30 C31 117.2(3) . . ?
C32 C31 C42 122.3(3) . . ?
C32 C31 C30 119.9(3) . . ?
C42 C31 C30 117.7(3) . . ?
C31 C32 C39 122.0(3) . . ?
C31 C32 C33 120.6(3) . . ?
C39 C32 C33 117.4(3) . . ?
C34 C33 C38 122.6(3) . . ?
C34 C33 C32 119.6(3) . . ?
C38 C33 C32 117.8(3) . . ?
C35 C34 C33 122.1(3) . . ?
C35 C34 C29 118.3(3) . . ?
C33 C34 C29 119.6(3) . . ?
C34 C35 C36 116.1(3) . . ?
C34 C35 Si4 105.5(3) . . ?
C36 C35 Si4 138.4(3) . . ?
C35 C36 C37 121.6(3) . . ?
C38 C37 C36 122.3(4) . . ?
C33 C38 C37 115.3(3) . . ?
C33 C38 Si6 106.2(2) . . ?
C37 C38 Si6 138.5(3) . . ?
C40 C39 C32 115.6(3) . . ?
C40 C39 Si6 138.5(3) . . ?
C32 C39 Si6 105.8(2) . . ?
C39 C40 C41 122.1(3) . . ?
C42 C41 C40 122.3(3) . . ?
C31 C42 C41 115.6(3) . . ?
C31 C42 Si5 105.5(2) . . ?
C41 C42 Si5 138.9(3) . . ?
C18 Si1 C19 111.6(3) . . ?
C18 Si1 C20 112.2(2) . . ?
C19 Si1 C20 112.3(2) . . ?
C18 Si1 C6 113.2(2) . . ?
C19 Si1 C6 113.66(18) . . ?
C20 Si1 C6 92.62(16) . . ?
C22 Si2 C21 110.3(3) . . ?
C22 Si2 C11 113.0(2) . . ?
C21 Si2 C11 112.1(2) . . ?
C22 Si2 C3 111.7(2) . . ?
C21 Si2 C3 115.86(19) . . ?
C11 Si2 C3 92.95(16) . . ?
C24 Si3 C23 110.6(2) . . ?
C24 Si3 C15 112.20(19) . . ?
C23 Si3 C15 113.27(19) . . ?
C24 Si3 C14 111.3(2) . . ?
C23 Si3 C14 115.40(18) . . ?
C15 Si3 C14 93.07(16) . . ?
C45 Si4 C35 112.5(2) . . ?
C45 Si4 C46 110.5(3) . . ?
C35 Si4 C46 112.6(2) . . ?
C45 Si4 C28 112.5(2) . . ?
C35 Si4 C28 93.14(16) . . ?
C46 Si4 C28 114.7(2) . . ?
C43 Si5 C25 111.33(19) . . ?
C43 Si5 C44 111.0(2) . . ?
C25 Si5 C44 114.5(2) . . ?
C43 Si5 C42 113.31(18) . . ?
C25 Si5 C42 92.79(15) . . ?
C44 Si5 C42 112.83(18) . . ?
C48 Si6 C38 113.6(2) . . ?
C48 Si6 C47 112.3(3) . . ?
C38 Si6 C47 112.3(2) . . ?
C48 Si6 C39 114.0(2) . . ?
C38 Si6 C39 92.71(15) . . ?
C47 Si6 C39 110.4(2) . . ?

_diffrn_measured_fraction_theta_max 0.989
_diffrn_reflns_theta_full        27.66
_diffrn_measured_fraction_theta_full 0.989
_refine_diff_density_max         0.217
_refine_diff_density_min         -0.303
_refine_diff_density_rms         0.043
_exptl_crystal_recrystallization_method 
'Re-crystallisation from solvent: hexane'
_exptl_crystal_preparation       ', Luminescent,Luminescent'
