# Electronic Supplementary Material (ESI) for ChemComm.
# This journal is © The Royal Society of Chemistry 2018

####################################################################### 
# 
# 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 1500221'
_audit_update_record             
;
2017-12-14 deposited with the CCDC.
2018-01-29 downloaded from the CCDC.
;

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
; 
 ? 
;
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C29 H23 Br N2 O2'
_chemical_formula_weight         511.40
_chemical_absolute_configuration ad

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'
Br Br -0.2901 2.4595 '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'

_symmetry_cell_setting           Monoclinic
_symmetry_space_group_name_H-M   'C2   '

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

_cell_length_a                   15.6759(3)
_cell_length_b                   10.3960(2)
_cell_length_c                   14.9375(2)
_cell_angle_alpha                90.00
_cell_angle_beta                 102.5630(10)
_cell_angle_gamma                90.00
_cell_volume                     2376.03(7)
_cell_formula_units_Z            4
_cell_measurement_temperature    298(2)
_cell_measurement_reflns_used    4986
_cell_measurement_theta_min      2.368
_cell_measurement_theta_max      25.498

_exptl_crystal_description       block
_exptl_crystal_colour            transparent
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.23
_exptl_crystal_density_meas      ?
_exptl_crystal_density_diffrn    1.430
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1048
_exptl_absorpt_coefficient_mu    1.760
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_correction_T_min  0.5253
_exptl_absorpt_correction_T_max  0.6877
_exptl_absorpt_process_details   SADABS

_exptl_special_details           
; 
 ? 
;

_diffrn_ambient_temperature      298(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  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_detector_area_resol_mean ?
_diffrn_standards_number         ?
_diffrn_standards_interval_count ?
_diffrn_standards_decay_%        ?
_diffrn_reflns_number            11664
_diffrn_reflns_av_R_equivalents  0.0231
_diffrn_reflns_av_sigmaI/netI    0.0533
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_theta_min         2.37
_diffrn_reflns_theta_max         25.00
_reflns_number_total             4157
_reflns_number_gt                3685
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       'Bruker SMART'
_computing_cell_refinement       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_solution    'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_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)+(0.0321P)²+0.2640P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    'riding mode'
_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   0.015(7)
_refine_ls_number_reflns         4157
_refine_ls_number_parameters     307
_refine_ls_number_restraints     1
_refine_ls_R_factor_all          0.0367
_refine_ls_R_factor_gt           0.0308
_refine_ls_wR_factor_ref         0.0800
_refine_ls_wR_factor_gt          0.0774
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_restrained_S_all      1.023
_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
Br1 Br 0.522842(18) 0.88305(5) 0.705101(19) 0.09191(17) Uani 1 1 d . . .
N1 N 0.13405(14) 0.7421(2) 0.25363(14) 0.0487(5) Uani 1 1 d . . .
N2 N 0.18186(14) 0.8070(2) 0.32812(14) 0.0511(5) Uani 1 1 d . . .
O1 O 0.13016(11) 0.53458(16) 0.18744(11) 0.0494(4) Uani 1 1 d . . .
O2 O 0.2389(2) 0.1545(2) 0.2452(2) 0.1067(9) Uani 1 1 d . . .
C1 C 0.24017(17) 0.7232(3) 0.37119(16) 0.0472(6) Uani 1 1 d . . .
C2 C 0.23184(16) 0.6015(2) 0.32718(16) 0.0446(5) Uani 1 1 d . . .
C3 C 0.16485(15) 0.6198(2) 0.25437(15) 0.0443(5) Uani 1 1 d . . .
C4 C 0.16668(15) 0.4111(2) 0.19941(15) 0.0466(6) Uani 1 1 d . . .
C5 C 0.23389(14) 0.3822(3) 0.26853(14) 0.0482(5) Uani 1 1 d . . .
C6 C 0.2748(2) 0.2508(3) 0.2769(2) 0.0600(7) Uani 1 1 d . . .
C7 C 0.3655(4) 0.2433(5) 0.3273(6) 0.174(3) Uani 1 1 d . . .
H7A H 0.3666 0.1806 0.3756 0.209 Uiso 1 1 calc R . .
H7B H 0.3979 0.2057 0.2854 0.209 Uiso 1 1 calc R . .
C8 C 0.4158(2) 0.3497(4) 0.3691(3) 0.0866(11) Uani 1 1 d . . .
H8A H 0.4718 0.3477 0.3514 0.104 Uiso 1 1 calc R . .
H8B H 0.4271 0.3383 0.4351 0.104 Uiso 1 1 calc R . .
C9 C 0.37622(19) 0.4809(3) 0.3467(2) 0.0628(7) Uani 1 1 d . . .
H9A H 0.3863 0.5094 0.2880 0.075 Uiso 1 1 calc R . .
H9B H 0.4037 0.5420 0.3931 0.075 Uiso 1 1 calc R . .
C10 C 0.27811(16) 0.4757(2) 0.34271(16) 0.0462(5) Uani 1 1 d . . .
H10A H 0.2702 0.4422 0.4017 0.055 Uiso 1 1 calc R . .
C11 C 0.06404(18) 0.8048(3) 0.19265(19) 0.0510(6) Uani 1 1 d . . .
C12 C 0.0621(2) 0.9379(3) 0.1893(2) 0.0628(8) Uani 1 1 d . . .
H12A H 0.1074 0.9859 0.2244 0.075 Uiso 1 1 calc R . .
C13 C -0.0076(2) 0.9978(3) 0.1335(3) 0.0771(9) Uani 1 1 d . . .
H13A H -0.0097 1.0872 0.1316 0.092 Uiso 1 1 calc R . .
C14 C -0.0740(2) 0.9290(4) 0.0806(3) 0.0816(10) Uani 1 1 d . . .
H14A H -0.1213 0.9709 0.0437 0.098 Uiso 1 1 calc R . .
C15 C -0.0701(3) 0.7981(4) 0.0828(3) 0.0964(13) Uani 1 1 d . . .
H15A H -0.1140 0.7506 0.0452 0.116 Uiso 1 1 calc R . .
C16 C -0.0028(2) 0.7356(3) 0.1392(3) 0.0772(10) Uani 1 1 d . . .
H16A H -0.0022 0.6462 0.1415 0.093 Uiso 1 1 calc R . .
C17 C 0.30465(16) 0.7633(3) 0.45359(16) 0.0500(6) Uani 1 1 d . . .
C18 C 0.3376(2) 0.6764(3) 0.52335(19) 0.0630(7) Uani 1 1 d . . .
H18A H 0.3161 0.5928 0.5198 0.076 Uiso 1 1 calc R . .
C19 C 0.4020(2) 0.7132(3) 0.59818(19) 0.0672(8) Uani 1 1 d . . .
H19A H 0.4244 0.6543 0.6442 0.081 Uiso 1 1 calc R . .
C20 C 0.43232(17) 0.8369(3) 0.60361(18) 0.0640(9) Uani 1 1 d . . .
C21 C 0.39946(19) 0.9256(3) 0.5373(2) 0.0649(8) Uani 1 1 d . . .
H21A H 0.4199 1.0098 0.5427 0.078 Uiso 1 1 calc R . .
C22 C 0.33567(15) 0.8888(3) 0.46225(16) 0.0553(6) Uani 1 1 d . . .
H22A H 0.3133 0.9489 0.4171 0.066 Uiso 1 1 calc R . .
C23 C 0.11789(19) 0.3269(3) 0.12355(18) 0.0542(6) Uani 1 1 d . . .
H23A H 0.0562 0.3484 0.1120 0.065 Uiso 1 1 calc R . .
H23B H 0.1242 0.2379 0.1434 0.065 Uiso 1 1 calc R . .
C24 C 0.14947(15) 0.3402(2) 0.03411(15) 0.0466(6) Uani 1 1 d . . .
C25 C 0.1869(2) 0.2358(3) 0.00110(19) 0.0629(7) Uani 1 1 d . . .
H25A H 0.1929 0.1586 0.0333 0.075 Uiso 1 1 calc R . .
C26 C 0.2158(2) 0.2455(4) -0.0806(2) 0.0787(10) Uani 1 1 d . . .
H26A H 0.2404 0.1744 -0.1029 0.094 Uiso 1 1 calc R . .
C27 C 0.20815(18) 0.3587(4) -0.12787(19) 0.0728(10) Uani 1 1 d . . .
H27A H 0.2288 0.3653 -0.1815 0.087 Uiso 1 1 calc R . .
C28 C 0.1703(2) 0.4616(3) -0.0964(2) 0.0698(8) Uani 1 1 d . . .
H28A H 0.1644 0.5385 -0.1290 0.084 Uiso 1 1 calc R . .
C29 C 0.1398(2) 0.4528(3) -0.01483(19) 0.0612(7) Uani 1 1 d . . .
H29A H 0.1130 0.5233 0.0059 0.073 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
Br1 C20 1.899(3) . ?
N1 C3 1.360(3) . ?
N1 N2 1.375(3) . ?
N1 C11 1.423(4) . ?
N2 C1 1.324(3) . ?
O1 C3 1.358(3) . ?
O1 C4 1.401(3) . ?
O2 C6 1.195(4) . ?
C1 C2 1.418(4) . ?
C1 C17 1.473(4) . ?
C2 C3 1.351(3) . ?
C2 C10 1.489(4) . ?
C4 C5 1.339(3) . ?
C4 C23 1.503(3) . ?
C5 C6 1.503(4) . ?
C5 C10 1.523(4) . ?
C6 C7 1.459(6) . ?
C7 C8 1.422(7) . ?
C8 C9 1.505(5) . ?
C9 C10 1.527(4) . ?
C11 C16 1.375(4) . ?
C11 C12 1.384(4) . ?
C12 C13 1.372(5) . ?
C13 C14 1.364(5) . ?
C14 C15 1.363(5) . ?
C15 C16 1.363(5) . ?
C17 C18 1.391(4) . ?
C17 C22 1.388(4) . ?
C18 C19 1.387(4) . ?
C19 C20 1.367(5) . ?
C20 C21 1.369(4) . ?
C21 C22 1.384(4) . ?
C23 C24 1.529(3) . ?
C24 C29 1.371(4) . ?
C24 C25 1.375(4) . ?
C25 C26 1.395(4) . ?
C26 C27 1.364(6) . ?
C27 C28 1.357(5) . ?
C28 C29 1.405(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
C3 N1 N2 108.8(2) . . ?
C3 N1 C11 131.1(2) . . ?
N2 N1 C11 120.1(2) . . ?
C1 N2 N1 105.5(2) . . ?
C3 O1 C4 114.61(18) . . ?
N2 C1 C2 112.2(2) . . ?
N2 C1 C17 119.7(2) . . ?
C2 C1 C17 128.1(2) . . ?
C3 C2 C1 103.0(2) . . ?
C3 C2 C10 121.1(2) . . ?
C1 C2 C10 135.9(2) . . ?
C2 C3 O1 128.2(2) . . ?
C2 C3 N1 110.5(2) . . ?
O1 C3 N1 121.3(2) . . ?
C5 C4 O1 122.3(2) . . ?
C5 C4 C23 129.6(3) . . ?
O1 C4 C23 108.1(2) . . ?
C4 C5 C6 121.2(2) . . ?
C4 C5 C10 125.1(3) . . ?
C6 C5 C10 113.7(2) . . ?
O2 C6 C5 125.0(3) . . ?
O2 C6 C7 118.8(4) . . ?
C5 C6 C7 116.2(3) . . ?
C8 C7 C6 124.8(4) . . ?
C7 C8 C9 116.4(3) . . ?
C8 C9 C10 109.8(3) . . ?
C2 C10 C5 108.5(2) . . ?
C2 C10 C9 115.3(2) . . ?
C5 C10 C9 110.2(2) . . ?
C16 C11 C12 119.6(3) . . ?
C16 C11 N1 121.1(2) . . ?
C12 C11 N1 119.2(3) . . ?
C13 C12 C11 118.9(3) . . ?
C14 C13 C12 121.4(3) . . ?
C13 C14 C15 119.0(4) . . ?
C14 C15 C16 121.0(4) . . ?
C15 C16 C11 119.9(3) . . ?
C18 C17 C22 118.4(2) . . ?
C18 C17 C1 121.1(2) . . ?
C22 C17 C1 120.5(3) . . ?
C19 C18 C17 120.7(3) . . ?
C20 C19 C18 119.3(3) . . ?
C19 C20 C21 121.3(3) . . ?
C19 C20 Br1 118.3(3) . . ?
C21 C20 Br1 120.3(2) . . ?
C20 C21 C22 119.5(3) . . ?
C21 C22 C17 120.8(3) . . ?
C4 C23 C24 113.43(19) . . ?
C29 C24 C25 119.3(2) . . ?
C29 C24 C23 121.6(2) . . ?
C25 C24 C23 119.1(2) . . ?
C24 C25 C26 120.1(3) . . ?
C27 C26 C25 120.5(3) . . ?
C28 C27 C26 119.8(3) . . ?
C27 C28 C29 120.4(3) . . ?
C24 C29 C28 119.9(3) . . ?

_diffrn_measured_fraction_theta_max 0.998
_diffrn_reflns_theta_full        25.00
_diffrn_measured_fraction_theta_full 0.998
_refine_diff_density_max         0.157
_refine_diff_density_min         -0.348
_refine_diff_density_rms         0.051
