# Supplementary Information (SI) for ChemComm.
# This journal is © The Royal Society of Chemistry 2026

####################################################################### 
# 
# 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. 
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data_25oct24_llq_2_0m
_database_code_depnum_ccdc_archive 'CCDC 2517408'
loop_
_audit_author_name
_audit_author_address
'longtao Huang'
;Dalian University of Technology
China
;
_audit_update_record             
;
2025-12-19 deposited with the CCDC.	2026-04-09 downloaded from the CCDC.
;
# start Validation Reply Form
_vrf_PLAT029_25oct24_llq_2_0m    
;
PROBLEM: _diffrn_measured_fraction_theta_full value Low .      0.944 Why?
RESPONSE: Rint value of 7.3%. This high value indicates moderate mosaicity within the crystal, which is consistent with the weak diffraction observed at high angles (as noted by the completeness of 94.4% at 2\qmax = 144.7\%). Despite this, a sufficient number of strong, unique reflections were obtained for structure solution. The internal consistency of the data for intensity thresholds above 2\s(I) was acceptable.
;
# Added during the CSD deposition process: Friday 19 December 2025 07:19 AM
# end Validation Reply Form

_audit_creation_date             2025-12-19
_audit_creation_method           
;
Olex2 1.5
(compiled 2025.07.13 svn.rb7424aed for OlexSys, GUI svn.r7314)
;
_shelx_SHELXL_version_number     2018/3
_chemical_name_common            ?
_chemical_name_systematic        ?
_chemical_formula_moiety         'C19 H21 Br O2 Si'
_chemical_formula_sum            'C19 H21 Br O2 Si'
_chemical_formula_weight         389.36
_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 0.0137 0.0067 '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'
Br Br -0.9338 1.0006 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0412 0.0250 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Si Si 0.2148 0.2488 '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      monoclinic
_space_group_IT_number           14
_space_group_name_H-M_alt        'P 1 21/n 1'
_space_group_name_Hall           '-P 2yn'
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                   12.5608(8)
_cell_length_b                   6.7690(4)
_cell_length_c                   21.8646(14)
_cell_angle_alpha                90
_cell_angle_beta                 97.770(2)
_cell_angle_gamma                90
_cell_volume                     1841.9(2)
_cell_formula_units_Z            4
_cell_measurement_reflns_used    9923
_cell_measurement_temperature    180.00
_cell_measurement_theta_max      71.96
_cell_measurement_theta_min      3.35
_shelx_estimated_absorpt_T_max   0.654
_shelx_estimated_absorpt_T_min   0.342
_exptl_absorpt_coefficient_mu    2.443
_exptl_absorpt_correction_T_max  0.7536
_exptl_absorpt_correction_T_min  0.3533
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1738 before and 0.0968 after correction.
The Ratio of minimum to maximum transmission is 0.4688.
The λ/2 correction factor is Not present.
;
_exptl_absorpt_special_details   ?
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.404
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_description       block
_exptl_crystal_F_000             800
_exptl_crystal_preparation       ?
_exptl_crystal_recrystallization_method ?
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.19
_exptl_transmission_factor_max   ?
_exptl_transmission_factor_min   ?
_diffrn_reflns_av_R_equivalents  0.0730
_diffrn_reflns_av_unetI/netI     0.0613
_diffrn_reflns_Laue_measured_fraction_full 0.944
_diffrn_reflns_Laue_measured_fraction_max 0.914
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            24979
_diffrn_reflns_point_group_measured_fraction_full 0.944
_diffrn_reflns_point_group_measured_fraction_max 0.914
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         72.342
_diffrn_reflns_theta_min         3.348
_diffrn_ambient_temperature      180.00
_diffrn_detector_area_resol_mean ?
_diffrn_measured_fraction_theta_full 0.944
_diffrn_measured_fraction_theta_max 0.914
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       'φ and ω scans'
_diffrn_oxdiff_ac3_digest_hkl    4115c4e69d1de7659b4eddd70a50ca762509a4
_diffrn_radiation_type           GaK\a
_diffrn_radiation_wavelength     1.34138
_diffrn_source                   ?
_diffrn_source_current           3.57
_diffrn_source_power             0.2492217
_diffrn_source_voltage           69.81
_diffrn_standards_number         0
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                4162
_reflns_number_total             5052
_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 V8.40B (?, 2016)'
_computing_data_collection       ?
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'olex2.solve 1.5 (Bourhis et al., 2015)'
_refine_diff_density_max         0.726
_refine_diff_density_min         -0.940
_refine_diff_density_rms         0.123
_refine_ls_extinction_coef       0.062(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.108
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     212
_refine_ls_number_reflns         5052
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0744
_refine_ls_R_factor_gt           0.0630
_refine_ls_restrained_S_all      1.108
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+(0.1218P)²] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1694
_refine_ls_wR_factor_ref         0.1791
_refine_special_details          ?
_olex2_refinement_description    
;
1.a Ternary CH refined with riding coordinates:
 C9(H9)
1.b Secondary CH2 refined with riding coordinates:
 C10(H10A,H10B)
1.c Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C5(H5), C6(H6), C15(H15), C16(H16), C18(H18), C19(H19)
1.d Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C), C8(H8A,H8B,H8C), C13(H13A,H13B,H13C)
;
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_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
Br1 Br 0.32216(2) 0.03894(4) 0.23979(2) 0.04765(18) Uani 1 1 d . . . . .
Si1 Si 0.89790(4) 0.42568(7) 0.09678(2) 0.02673(19) Uani 1 1 d . . . . .
O1 O 0.57530(14) 0.6227(2) 0.07192(7) 0.0427(4) Uani 1 1 d . . . . .
O2 O 0.72027(15) 0.8115(2) 0.09996(9) 0.0499(5) Uani 1 1 d . . . . .
C1 C 0.7111(2) 0.3189(4) -0.10102(11) 0.0435(5) Uani 1 1 d . . . . .
H1 H 0.674179 0.296498 -0.141269 0.052 Uiso 1 1 calc R U . . .
C2 C 0.7360(2) 0.5079(4) -0.08112(12) 0.0456(6) Uani 1 1 d . . . . .
H2 H 0.715511 0.616835 -0.107490 0.055 Uiso 1 1 calc R U . . .
C3 C 0.7911(2) 0.5398(3) -0.02239(11) 0.0390(5) Uani 1 1 d . . . . .
H3 H 0.808343 0.671193 -0.009344 0.047 Uiso 1 1 calc R U . . .
C4 C 0.82145(15) 0.3840(3) 0.01773(9) 0.0298(4) Uani 1 1 d . . . . .
C5 C 0.7940(2) 0.1930(3) -0.00344(11) 0.0403(5) Uani 1 1 d . . . . .
H5 H 0.812634 0.083137 0.022895 0.048 Uiso 1 1 calc R U . . .
C6 C 0.7403(2) 0.1620(4) -0.06214(12) 0.0488(6) Uani 1 1 d . . . . .
H6 H 0.723267 0.031127 -0.075826 0.059 Uiso 1 1 calc R U . . .
C7 C 0.96774(18) 0.6683(3) 0.09980(10) 0.0366(5) Uani 1 1 d . . . . .
H7A H 1.006069 0.689637 0.141368 0.055 Uiso 1 1 calc R U . . .
H7B H 0.914817 0.773810 0.089780 0.055 Uiso 1 1 calc R U . . .
H7C H 1.019139 0.669407 0.069839 0.055 Uiso 1 1 calc R U . . .
C8 C 0.99808(18) 0.2241(3) 0.11631(11) 0.0408(5) Uani 1 1 d . . . . .
H8A H 1.044933 0.215014 0.084033 0.061 Uiso 1 1 calc R U . . .
H8B H 0.960414 0.098361 0.119164 0.061 Uiso 1 1 calc R U . . .
H8C H 1.041499 0.253136 0.155975 0.061 Uiso 1 1 calc R U . . .
C9 C 0.80253(15) 0.4052(3) 0.15558(9) 0.0289(4) Uani 1 1 d . . . . .
H9 H 0.799739 0.267664 0.172006 0.035 Uiso 1 1 calc R U . . .
C10 C 0.78925(19) 0.5572(3) 0.20406(11) 0.0373(5) Uani 1 1 d . . . . .
H10A H 0.785645 0.509668 0.246552 0.045 Uiso 1 1 calc R U . . .
H10B H 0.826372 0.685339 0.201565 0.045 Uiso 1 1 calc R U . . .
C11 C 0.69508(16) 0.5143(3) 0.15593(9) 0.0280(4) Uani 1 1 d . . . . .
C12 C 0.66734(17) 0.6664(3) 0.10718(10) 0.0324(4) Uani 1 1 d . . . . .
C13 C 0.5399(2) 0.7591(4) 0.02237(13) 0.0544(7) Uani 1 1 d . . . . .
H13A H 0.599184 0.784808 -0.001467 0.082 Uiso 1 1 calc R U . . .
H13B H 0.517411 0.883337 0.039724 0.082 Uiso 1 1 calc R U . . .
H13C H 0.479308 0.701550 -0.004702 0.082 Uiso 1 1 calc R U . . .
C14 C 0.60252(15) 0.3992(3) 0.17439(8) 0.0259(4) Uani 1 1 d . . . . .
C15 C 0.54134(17) 0.4793(3) 0.21704(10) 0.0304(4) Uani 1 1 d . . . . .
H15 H 0.557873 0.607606 0.233218 0.036 Uiso 1 1 calc R U . . .
C16 C 0.45692(16) 0.3750(3) 0.23618(9) 0.0326(4) Uani 1 1 d . . . . .
H16 H 0.415370 0.430379 0.265114 0.039 Uiso 1 1 calc R U . . .
C17 C 0.43448(15) 0.1877(3) 0.21213(9) 0.0305(4) Uani 1 1 d . . . . .
C18 C 0.49311(16) 0.1040(3) 0.16944(9) 0.0314(4) Uani 1 1 d . . . . .
H18 H 0.476246 -0.024203 0.153268 0.038 Uiso 1 1 calc R U . . .
C19 C 0.57739(16) 0.2124(3) 0.15081(8) 0.0292(4) Uani 1 1 d . . . . .
H19 H 0.618268 0.157345 0.121487 0.035 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
Br1 C17 1.8975(19) . ?
Si1 C4 1.882(2) . ?
Si1 C7 1.859(2) . ?
Si1 C8 1.866(2) . ?
Si1 C9 1.877(2) . ?
O1 C12 1.333(3) . ?
O1 C13 1.447(3) . ?
O2 C12 1.208(3) . ?
C1 H1 0.9500 . ?
C1 C2 1.373(4) . ?
C1 C6 1.379(4) . ?
C2 H2 0.9500 . ?
C2 C3 1.391(4) . ?
C3 H3 0.9500 . ?
C3 C4 1.392(3) . ?
C4 C5 1.401(3) . ?
C5 H5 0.9500 . ?
C5 C6 1.383(3) . ?
C6 H6 0.9500 . ?
C7 H7A 0.9800 . ?
C7 H7B 0.9800 . ?
C7 H7C 0.9800 . ?
C8 H8A 0.9800 . ?
C8 H8B 0.9800 . ?
C8 H8C 0.9800 . ?
C9 H9 1.0000 . ?
C9 C10 1.502(3) . ?
C9 C11 1.539(3) . ?
C10 H10A 0.9900 . ?
C10 H10B 0.9900 . ?
C10 C11 1.501(3) . ?
C11 C12 1.489(3) . ?
C11 C14 1.499(3) . ?
C13 H13A 0.9800 . ?
C13 H13B 0.9800 . ?
C13 H13C 0.9800 . ?
C14 C15 1.396(3) . ?
C14 C19 1.386(3) . ?
C15 H15 0.9500 . ?
C15 C16 1.385(3) . ?
C16 H16 0.9500 . ?
C16 C17 1.387(3) . ?
C17 C18 1.386(3) . ?
C18 H18 0.9500 . ?
C18 C19 1.393(3) . ?
C19 H19 0.9500 . ?

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
C7 Si1 C4 110.16(10) . . ?
C7 Si1 C8 109.73(11) . . ?
C7 Si1 C9 112.51(9) . . ?
C8 Si1 C4 110.20(10) . . ?
C8 Si1 C9 105.21(10) . . ?
C9 Si1 C4 108.93(8) . . ?
C12 O1 C13 116.45(19) . . ?
C2 C1 H1 120.3 . . ?
C2 C1 C6 119.5(2) . . ?
C6 C1 H1 120.3 . . ?
C1 C2 H2 120.0 . . ?
C1 C2 C3 120.1(2) . . ?
C3 C2 H2 120.0 . . ?
C2 C3 H3 119.2 . . ?
C2 C3 C4 121.6(2) . . ?
C4 C3 H3 119.2 . . ?
C3 C4 Si1 121.87(16) . . ?
C3 C4 C5 117.20(19) . . ?
C5 C4 Si1 120.93(16) . . ?
C4 C5 H5 119.5 . . ?
C6 C5 C4 120.9(2) . . ?
C6 C5 H5 119.5 . . ?
C1 C6 C5 120.7(2) . . ?
C1 C6 H6 119.6 . . ?
C5 C6 H6 119.6 . . ?
Si1 C7 H7A 109.5 . . ?
Si1 C7 H7B 109.5 . . ?
Si1 C7 H7C 109.5 . . ?
H7A C7 H7B 109.5 . . ?
H7A C7 H7C 109.5 . . ?
H7B C7 H7C 109.5 . . ?
Si1 C8 H8A 109.5 . . ?
Si1 C8 H8B 109.5 . . ?
Si1 C8 H8C 109.5 . . ?
H8A C8 H8B 109.5 . . ?
H8A C8 H8C 109.5 . . ?
H8B C8 H8C 109.5 . . ?
Si1 C9 H9 111.8 . . ?
C10 C9 Si1 125.06(15) . . ?
C10 C9 H9 111.8 . . ?
C10 C9 C11 59.14(14) . . ?
C11 C9 Si1 127.53(14) . . ?
C11 C9 H9 111.8 . . ?
C9 C10 H10A 117.6 . . ?
C9 C10 H10B 117.6 . . ?
H10A C10 H10B 114.7 . . ?
C11 C10 C9 61.66(14) . . ?
C11 C10 H10A 117.6 . . ?
C11 C10 H10B 117.6 . . ?
C10 C11 C9 59.21(14) . . ?
C12 C11 C9 116.65(16) . . ?
C12 C11 C10 116.98(18) . . ?
C12 C11 C14 115.91(17) . . ?
C14 C11 C9 117.68(16) . . ?
C14 C11 C10 118.55(17) . . ?
O1 C12 C11 111.15(17) . . ?
O2 C12 O1 123.7(2) . . ?
O2 C12 C11 125.2(2) . . ?
O1 C13 H13A 109.5 . . ?
O1 C13 H13B 109.5 . . ?
O1 C13 H13C 109.5 . . ?
H13A C13 H13B 109.5 . . ?
H13A C13 H13C 109.5 . . ?
H13B C13 H13C 109.5 . . ?
C15 C14 C11 119.68(17) . . ?
C19 C14 C11 121.32(17) . . ?
C19 C14 C15 118.99(18) . . ?
C14 C15 H15 119.4 . . ?
C16 C15 C14 121.13(18) . . ?
C16 C15 H15 119.4 . . ?
C15 C16 H16 120.8 . . ?
C15 C16 C17 118.45(18) . . ?
C17 C16 H16 120.8 . . ?
C16 C17 Br1 119.08(15) . . ?
C18 C17 Br1 118.91(16) . . ?
C18 C17 C16 122.00(18) . . ?
C17 C18 H18 120.8 . . ?
C17 C18 C19 118.39(19) . . ?
C19 C18 H18 120.8 . . ?
C14 C19 C18 121.04(18) . . ?
C14 C19 H19 119.5 . . ?
C18 C19 H19 119.5 . . ?

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
Br1 C17 C18 C19 -178.18(15) . . . . ?
Si1 C4 C5 C6 -178.3(2) . . . . ?
Si1 C9 C10 C11 116.58(18) . . . . ?
Si1 C9 C11 C10 -112.6(2) . . . . ?
Si1 C9 C11 C12 -5.7(3) . . . . ?
Si1 C9 C11 C14 138.96(16) . . . . ?
C1 C2 C3 C4 -0.6(4) . . . . ?
C2 C1 C6 C5 0.1(4) . . . . ?
C2 C3 C4 Si1 179.0(2) . . . . ?
C2 C3 C4 C5 -0.1(4) . . . . ?
C3 C4 C5 C6 0.8(4) . . . . ?
C4 Si1 C9 C10 -127.63(18) . . . . ?
C4 Si1 C9 C11 -52.18(19) . . . . ?
C4 C5 C6 C1 -0.8(4) . . . . ?
C6 C1 C2 C3 0.6(4) . . . . ?
C7 Si1 C4 C3 -21.6(2) . . . . ?
C7 Si1 C4 C5 157.51(18) . . . . ?
C7 Si1 C9 C10 -5.2(2) . . . . ?
C7 Si1 C9 C11 70.27(19) . . . . ?
C8 Si1 C4 C3 -142.82(19) . . . . ?
C8 Si1 C4 C5 36.3(2) . . . . ?
C8 Si1 C9 C10 114.24(19) . . . . ?
C8 Si1 C9 C11 -170.30(17) . . . . ?
C9 Si1 C4 C3 102.24(19) . . . . ?
C9 Si1 C4 C5 -78.64(19) . . . . ?
C9 C10 C11 C12 -106.4(2) . . . . ?
C9 C10 C11 C14 106.9(2) . . . . ?
C9 C11 C12 O1 120.34(19) . . . . ?
C9 C11 C12 O2 -59.8(3) . . . . ?
C9 C11 C14 C15 132.72(19) . . . . ?
C9 C11 C14 C19 -46.0(3) . . . . ?
C10 C9 C11 C12 107.0(2) . . . . ?
C10 C9 C11 C14 -108.4(2) . . . . ?
C10 C11 C12 O1 -172.45(18) . . . . ?
C10 C11 C12 O2 7.4(3) . . . . ?
C10 C11 C14 C15 64.6(3) . . . . ?
C10 C11 C14 C19 -114.1(2) . . . . ?
C11 C14 C15 C16 -178.44(18) . . . . ?
C11 C14 C19 C18 178.21(18) . . . . ?
C12 C11 C14 C15 -82.4(2) . . . . ?
C12 C11 C14 C19 98.9(2) . . . . ?
C13 O1 C12 O2 0.6(3) . . . . ?
C13 O1 C12 C11 -179.55(19) . . . . ?
C14 C11 C12 O1 -24.9(2) . . . . ?
C14 C11 C12 O2 155.0(2) . . . . ?
C14 C15 C16 C17 0.2(3) . . . . ?
C15 C14 C19 C18 -0.5(3) . . . . ?
C15 C16 C17 Br1 177.98(15) . . . . ?
C15 C16 C17 C18 -0.6(3) . . . . ?
C16 C17 C18 C19 0.4(3) . . . . ?
C17 C18 C19 C14 0.2(3) . . . . ?
C19 C14 C15 C16 0.3(3) . . . . ?

_olex2_submission_special_instructions 'No special instructions were received'
