# Supplementary Material (ESI) for Chemical Communications
# This journal is © The Royal Society of Chemistry 2004

data_global

_journal_coden_Cambridge         182

loop_
_publ_author_name
'Jonathan Clayden'
'Madeleine Helliwell'
'I. Pinto'
'Rachel Turnbull'

_publ_contact_author_name        'Prof Jonathan Clayden'
_publ_contact_author_address     
;
Department of Chemistry
University of Manchester
Manchester
M13 9PL
UNITED KINGDOM
;

_publ_contact_author_email       J.P.CLAYDEN@MAN.AC.UK

_publ_requested_journal          'Chemical Communications'

_publ_section_title              
;
Dearomatising rearrangements of lithiated
thiophenecarboxamides
;

data_h:\s1898\work\s1898abs
_database_code_depnum_ccdc_archive 'CCDC 242986'

_audit_creation_method           SHELXL-97
_chemical_name_systematic        
;
?
;

_publ_section_exptl_refinement   
;
The structure was solved by the Patterson methods.
Non-H atoms were refined anisotropically.
H atoms were included in calculated positions.
;

_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         ?
_chemical_formula_sum            'C26 H27 Br2 N O S'
_chemical_formula_weight         561.37

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'
S S 0.1246 0.1234 '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'

_symmetry_cell_setting           Triclinic
_symmetry_space_group_name_H-M   P-1

loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, -y, -z'

_cell_length_a                   7.608(2)
_cell_length_b                   11.932(4)
_cell_length_c                   13.936(4)
_cell_angle_alpha                102.633(5)
_cell_angle_beta                 96.003(5)
_cell_angle_gamma                103.180(5)
_cell_volume                     1186.0(6)
_cell_formula_units_Z            2
_cell_measurement_temperature    100(2)
_cell_measurement_reflns_used    3232
_cell_measurement_theta_min      2.79
_cell_measurement_theta_max      26.43

_exptl_crystal_description       block
_exptl_crystal_colour            colourless
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_exptl_crystal_density_meas      0
_exptl_crystal_density_diffrn    1.572
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             568
_exptl_absorpt_coefficient_mu    3.524
_exptl_absorpt_correction_type   none
_exptl_absorpt_correction_T_min  0.5391
_exptl_absorpt_correction_T_max  0.5391
_exptl_absorpt_process_details   ?

_exptl_special_details           
;
?
;

_diffrn_ambient_temperature      100(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_interval_time  ?
_diffrn_standards_decay_%        ?
_diffrn_reflns_number            6744
_diffrn_reflns_av_R_equivalents  0.0220
_diffrn_reflns_av_sigmaI/netI    0.0424
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_theta_min         1.81
_diffrn_reflns_theta_max         26.48
_reflns_number_total             4701
_reflns_number_gt                3964
_reflns_threshold_expression     >2sigma(I)

_computing_data_collection       'Bruker SMART'
_computing_cell_refinement       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'

_refine_special_details          
;
Refinement of F^2^ against ALL reflections.  The weighted R-factor wR and
goodness of fit S are based on F^2^, conventional R-factors R are based
on F, with F set to zero for negative F^2^. The threshold expression of
F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is
not relevant to the choice of reflections for refinement.  R-factors based
on F^2^ 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/[\s^2^(Fo^2^)+(0.0466P)^2^+0.3485P] where P=(Fo^2^+2Fc^2^)/3'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    mixed
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       ?
_refine_ls_number_reflns         4701
_refine_ls_number_parameters     283
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0418
_refine_ls_R_factor_gt           0.0331
_refine_ls_wR_factor_ref         0.0875
_refine_ls_wR_factor_gt          0.0838
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_restrained_S_all      1.059
_refine_ls_shift/su_max          0.002
_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 0.59887(4) 0.99345(2) 0.66972(2) 0.02365(10) Uani 1 1 d . . .
Br2 Br 1.34668(4) 0.07392(2) -0.13790(2) 0.02186(10) Uani 1 1 d . . .
S1 S 1.08126(10) 0.60815(6) 0.44028(6) 0.01792(16) Uani 1 1 d . . .
O1 O 0.5789(3) 0.35471(16) 0.23620(15) 0.0173(4) Uani 1 1 d . . .
N1 N 0.7547(3) 0.54437(18) 0.25447(17) 0.0129(5) Uani 1 1 d . . .
C1 C 0.7772(4) 0.9064(2) 0.6416(2) 0.0175(6) Uani 1 1 d . . .
C2 C 0.7416(4) 0.7904(2) 0.6516(2) 0.0194(6) Uani 1 1 d . . .
H2 H 0.6325 0.7556 0.6733 0.023 Uiso 1 1 calc R . .
C3 C 0.8696(4) 0.7269(2) 0.6290(2) 0.0193(6) Uani 1 1 d . . .
H3 H 0.8465 0.6471 0.6345 0.023 Uiso 1 1 calc R . .
C4 C 1.0323(4) 0.7774(2) 0.5980(2) 0.0165(6) Uani 1 1 d . . .
C5 C 1.0649(4) 0.8953(2) 0.5926(2) 0.0188(6) Uani 1 1 d . . .
H5 H 1.1759 0.9320 0.5737 0.023 Uiso 1 1 calc R . .
C6 C 0.9377(4) 0.9601(2) 0.6143(2) 0.0190(6) Uani 1 1 d . . .
H6 H 0.9611 1.0405 0.6104 0.023 Uiso 1 1 calc R . .
C7 C 1.1637(4) 0.7038(2) 0.5667(2) 0.0195(6) Uani 1 1 d . . .
H7A H 1.1772 0.6541 0.6139 0.023 Uiso 1 1 calc R . .
H7B H 1.2854 0.7572 0.5689 0.023 Uiso 1 1 calc R . .
C8 C 1.1225(4) 0.7158(2) 0.3729(2) 0.0180(6) Uani 1 1 d . . .
H8 H 1.2159 0.7862 0.4041 0.022 Uiso 1 1 calc R . .
C9 C 1.0391(4) 0.7113(2) 0.2833(2) 0.0165(6) Uani 1 1 d . . .
H9 H 1.0847 0.7789 0.2590 0.020 Uiso 1 1 calc R . .
C10 C 0.8888(4) 0.6202(2) 0.2152(2) 0.0147(6) Uani 1 1 d . . .
C11 C 0.8825(4) 0.6115(2) 0.1168(2) 0.0165(6) Uani 1 1 d . . .
H11 H 0.9567 0.6763 0.0982 0.020 Uiso 1 1 calc R . .
C12 C 0.7740(4) 0.5133(2) 0.0366(2) 0.0185(6) Uani 1 1 d . . .
H12 H 0.7211 0.5283 -0.0226 0.022 Uiso 1 1 calc R . .
C13 C 0.7481(4) 0.4011(2) 0.0456(2) 0.0174(6) Uani 1 1 d . . .
H13 H 0.6822 0.3371 -0.0088 0.021 Uiso 1 1 calc R . .
C14 C 0.8217(4) 0.3755(2) 0.1403(2) 0.0143(5) Uani 1 1 d . . .
H14 H 0.9526 0.4217 0.1618 0.017 Uiso 1 1 calc R . .
C15 C 0.7091(4) 0.4222(2) 0.2158(2) 0.0134(5) Uani 1 1 d . . .
C16 C 0.6138(4) 0.5985(2) 0.3061(2) 0.0158(6) Uani 1 1 d . . .
C17 C 0.6854(4) 0.7342(2) 0.3455(2) 0.0195(6) Uani 1 1 d . . .
H17A H 0.5886 0.7670 0.3723 0.029 Uiso 1 1 calc R . .
H17B H 0.7223 0.7692 0.2910 0.029 Uiso 1 1 calc R . .
H17C H 0.7910 0.7528 0.3984 0.029 Uiso 1 1 calc R . .
C18 C 0.5687(4) 0.5476(2) 0.3943(2) 0.0181(6) Uani 1 1 d . . .
H18A H 0.4971 0.4646 0.3699 0.027 Uiso 1 1 calc R . .
H18B H 0.4976 0.5939 0.4332 0.027 Uiso 1 1 calc R . .
H18C H 0.6825 0.5514 0.4364 0.027 Uiso 1 1 calc R . .
C19 C 0.4452(4) 0.5729(3) 0.2269(2) 0.0210(6) Uani 1 1 d . . .
H19A H 0.4006 0.4869 0.1982 0.031 Uiso 1 1 calc R . .
H19B H 0.4777 0.6125 0.1742 0.031 Uiso 1 1 calc R . .
H19C H 0.3492 0.6028 0.2575 0.031 Uiso 1 1 calc R . .
C20 C 0.8087(4) 0.2427(2) 0.1301(2) 0.0158(6) Uani 1 1 d . . .
H20A H 0.8390 0.2296 0.1969 0.019 Uiso 1 1 calc R . .
H20B H 0.6816 0.1959 0.1019 0.019 Uiso 1 1 calc R . .
C21 C 0.9369(4) 0.2000(2) 0.0638(2) 0.0158(6) Uani 1 1 d . . .
C22 C 1.1267(4) 0.2383(2) 0.0960(2) 0.0164(6) Uani 1 1 d . . .
H22 H 1.1726 0.2906 0.1602 0.020 Uiso 1 1 calc R . .
C23 C 1.2483(4) 0.2024(2) 0.0372(2) 0.0167(6) Uani 1 1 d . . .
H23 H 1.3764 0.2302 0.0600 0.020 Uiso 1 1 calc R . .
C24 C 1.1805(4) 0.1249(2) -0.0560(2) 0.0166(6) Uani 1 1 d . . .
C25 C 0.9944(4) 0.0841(2) -0.0904(2) 0.0168(6) Uani 1 1 d . . .
H25 H 0.9495 0.0312 -0.1545 0.020 Uiso 1 1 calc R . .
C26 C 0.8741(4) 0.1217(2) -0.0300(2) 0.0149(6) Uani 1 1 d . . .
H26 H 0.7461 0.0934 -0.0532 0.018 Uiso 1 1 calc R . .

loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_23
_atom_site_aniso_U_13
_atom_site_aniso_U_12
Br1 0.01958(16) 0.01650(15) 0.03403(19) 0.00346(13) 0.00893(13) 0.00371(11)
Br2 0.02346(16) 0.02133(16) 0.02465(17) 0.00669(12) 0.01080(12) 0.00944(12)
S1 0.0200(4) 0.0127(3) 0.0213(4) 0.0052(3) 0.0033(3) 0.0038(3)
O1 0.0181(10) 0.0131(9) 0.0207(10) 0.0059(8) 0.0065(8) 0.0008(8)
N1 0.0131(11) 0.0105(10) 0.0155(12) 0.0044(9) 0.0048(9) 0.0019(9)
C1 0.0181(14) 0.0177(14) 0.0165(14) 0.0035(11) 0.0055(12) 0.0041(11)
C2 0.0189(14) 0.0173(14) 0.0183(15) 0.0042(12) 0.0036(12) -0.0025(11)
C3 0.0239(15) 0.0135(13) 0.0196(15) 0.0066(11) 0.0016(12) 0.0015(11)
C4 0.0195(14) 0.0168(13) 0.0131(14) 0.0048(11) 0.0006(11) 0.0043(11)
C5 0.0173(14) 0.0181(14) 0.0184(15) 0.0045(12) 0.0030(12) -0.0004(11)
C6 0.0226(15) 0.0138(13) 0.0189(15) 0.0046(11) 0.0045(12) 0.0004(11)
C7 0.0198(14) 0.0178(14) 0.0201(15) 0.0049(12) -0.0008(12) 0.0051(11)
C8 0.0163(13) 0.0132(13) 0.0234(16) 0.0010(11) 0.0050(12) 0.0043(11)
C9 0.0175(14) 0.0102(12) 0.0217(15) 0.0027(11) 0.0070(12) 0.0029(10)
C10 0.0157(13) 0.0085(12) 0.0206(15) 0.0043(11) 0.0043(11) 0.0034(10)
C11 0.0225(14) 0.0093(12) 0.0210(15) 0.0079(11) 0.0092(12) 0.0043(11)
C12 0.0252(15) 0.0187(14) 0.0137(14) 0.0072(11) 0.0041(12) 0.0063(12)
C13 0.0206(14) 0.0147(13) 0.0165(14) 0.0028(11) 0.0068(12) 0.0032(11)
C14 0.0176(13) 0.0090(12) 0.0163(14) 0.0034(10) 0.0040(11) 0.0027(10)
C15 0.0146(13) 0.0140(12) 0.0124(13) 0.0054(10) 0.0004(11) 0.0039(11)
C16 0.0163(13) 0.0140(13) 0.0191(14) 0.0053(11) 0.0063(11) 0.0054(11)
C17 0.0202(14) 0.0130(13) 0.0248(16) 0.0016(12) 0.0054(12) 0.0054(11)
C18 0.0179(14) 0.0174(13) 0.0200(15) 0.0056(12) 0.0084(12) 0.0034(11)
C19 0.0183(14) 0.0230(15) 0.0211(16) 0.0019(12) 0.0020(12) 0.0084(12)
C20 0.0168(13) 0.0109(13) 0.0194(14) 0.0047(11) 0.0029(11) 0.0023(11)
C21 0.0217(14) 0.0085(12) 0.0192(14) 0.0064(11) 0.0049(12) 0.0044(11)
C22 0.0209(14) 0.0114(12) 0.0159(14) 0.0039(11) 0.0002(12) 0.0033(11)
C23 0.0164(14) 0.0143(13) 0.0194(15) 0.0068(11) 0.0019(12) 0.0019(11)
C24 0.0195(14) 0.0145(13) 0.0188(14) 0.0060(11) 0.0080(12) 0.0068(11)
C25 0.0227(14) 0.0123(13) 0.0159(14) 0.0041(11) 0.0026(12) 0.0049(11)
C26 0.0142(13) 0.0105(12) 0.0205(15) 0.0070(11) 0.0015(11) 0.0015(10)

_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 C1 1.910(3) . ?
Br2 C24 1.902(3) . ?
S1 C8 1.743(3) . ?
S1 C7 1.834(3) . ?
O1 C15 1.227(3) . ?
N1 C15 1.386(3) . ?
N1 C10 1.440(3) . ?
N1 C16 1.535(3) . ?
C1 C6 1.376(4) . ?
C1 C2 1.389(4) . ?
C2 C3 1.385(4) . ?
C2 H2 0.9500 . ?
C3 C4 1.403(4) . ?
C3 H3 0.9500 . ?
C4 C5 1.392(4) . ?
C4 C7 1.511(4) . ?
C5 C6 1.388(4) . ?
C5 H5 0.9500 . ?
C6 H6 0.9500 . ?
C7 H7A 0.9900 . ?
C7 H7B 0.9900 . ?
C8 C9 1.324(4) . ?
C8 H8 0.9500 . ?
C9 C10 1.465(4) . ?
C9 H9 0.9500 . ?
C10 C11 1.346(4) . ?
C11 C12 1.449(4) . ?
C11 H11 0.9500 . ?
C12 C13 1.344(4) . ?
C12 H12 0.9500 . ?
C13 C14 1.499(4) . ?
C13 H13 0.9500 . ?
C14 C15 1.518(4) . ?
C14 C20 1.538(3) . ?
C14 H14 1.0000 . ?
C16 C18 1.522(4) . ?
C16 C19 1.528(4) . ?
C16 C17 1.538(4) . ?
C17 H17A 0.9800 . ?
C17 H17B 0.9800 . ?
C17 H17C 0.9800 . ?
C18 H18A 0.9800 . ?
C18 H18B 0.9800 . ?
C18 H18C 0.9800 . ?
C19 H19A 0.9800 . ?
C19 H19B 0.9800 . ?
C19 H19C 0.9800 . ?
C20 C21 1.508(4) . ?
C20 H20A 0.9900 . ?
C20 H20B 0.9900 . ?
C21 C26 1.394(4) . ?
C21 C22 1.403(4) . ?
C22 C23 1.378(4) . ?
C22 H22 0.9500 . ?
C23 C24 1.388(4) . ?
C23 H23 0.9500 . ?
C24 C25 1.383(4) . ?
C25 C26 1.390(4) . ?
C25 H25 0.9500 . ?
C26 H26 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
C8 S1 C7 99.24(13) . . ?
C15 N1 C10 120.0(2) . . ?
C15 N1 C16 117.8(2) . . ?
C10 N1 C16 117.9(2) . . ?
C6 C1 C2 121.9(3) . . ?
C6 C1 Br1 119.7(2) . . ?
C2 C1 Br1 118.4(2) . . ?
C3 C2 C1 118.1(3) . . ?
C3 C2 H2 121.0 . . ?
C1 C2 H2 121.0 . . ?
C2 C3 C4 121.7(3) . . ?
C2 C3 H3 119.2 . . ?
C4 C3 H3 119.2 . . ?
C5 C4 C3 118.1(3) . . ?
C5 C4 C7 121.1(3) . . ?
C3 C4 C7 120.8(2) . . ?
C6 C5 C4 121.0(3) . . ?
C6 C5 H5 119.5 . . ?
C4 C5 H5 119.5 . . ?
C1 C6 C5 119.2(3) . . ?
C1 C6 H6 120.4 . . ?
C5 C6 H6 120.4 . . ?
C4 C7 S1 110.89(19) . . ?
C4 C7 H7A 109.5 . . ?
S1 C7 H7A 109.5 . . ?
C4 C7 H7B 109.5 . . ?
S1 C7 H7B 109.5 . . ?
H7A C7 H7B 108.0 . . ?
C9 C8 S1 127.7(2) . . ?
C9 C8 H8 116.1 . . ?
S1 C8 H8 116.1 . . ?
C8 C9 C10 131.2(3) . . ?
C8 C9 H9 114.4 . . ?
C10 C9 H9 114.4 . . ?
C11 C10 N1 122.6(2) . . ?
C11 C10 C9 117.6(2) . . ?
N1 C10 C9 119.8(2) . . ?
C10 C11 C12 126.5(2) . . ?
C10 C11 H11 116.7 . . ?
C12 C11 H11 116.7 . . ?
C13 C12 C11 120.2(3) . . ?
C13 C12 H12 119.9 . . ?
C11 C12 H12 119.9 . . ?
C12 C13 C14 121.0(3) . . ?
C12 C13 H13 119.5 . . ?
C14 C13 H13 119.5 . . ?
C13 C14 C15 104.6(2) . . ?
C13 C14 C20 113.1(2) . . ?
C15 C14 C20 111.7(2) . . ?
C13 C14 H14 109.1 . . ?
C15 C14 H14 109.1 . . ?
C20 C14 H14 109.1 . . ?
O1 C15 N1 122.8(2) . . ?
O1 C15 C14 120.8(2) . . ?
N1 C15 C14 116.3(2) . . ?
C18 C16 C19 112.0(2) . . ?
C18 C16 N1 111.2(2) . . ?
C19 C16 N1 106.7(2) . . ?
C18 C16 C17 107.5(2) . . ?
C19 C16 C17 108.0(2) . . ?
N1 C16 C17 111.4(2) . . ?
C16 C17 H17A 109.5 . . ?
C16 C17 H17B 109.5 . . ?
H17A C17 H17B 109.5 . . ?
C16 C17 H17C 109.5 . . ?
H17A C17 H17C 109.5 . . ?
H17B C17 H17C 109.5 . . ?
C16 C18 H18A 109.5 . . ?
C16 C18 H18B 109.5 . . ?
H18A C18 H18B 109.5 . . ?
C16 C18 H18C 109.5 . . ?
H18A C18 H18C 109.5 . . ?
H18B C18 H18C 109.5 . . ?
C16 C19 H19A 109.5 . . ?
C16 C19 H19B 109.5 . . ?
H19A C19 H19B 109.5 . . ?
C16 C19 H19C 109.5 . . ?
H19A C19 H19C 109.5 . . ?
H19B C19 H19C 109.5 . . ?
C21 C20 C14 111.6(2) . . ?
C21 C20 H20A 109.3 . . ?
C14 C20 H20A 109.3 . . ?
C21 C20 H20B 109.3 . . ?
C14 C20 H20B 109.3 . . ?
H20A C20 H20B 108.0 . . ?
C26 C21 C22 117.6(3) . . ?
C26 C21 C20 122.3(2) . . ?
C22 C21 C20 120.1(2) . . ?
C23 C22 C21 121.9(3) . . ?
C23 C22 H22 119.1 . . ?
C21 C22 H22 119.1 . . ?
C22 C23 C24 118.9(3) . . ?
C22 C23 H23 120.6 . . ?
C24 C23 H23 120.6 . . ?
C25 C24 C23 121.2(3) . . ?
C25 C24 Br2 119.5(2) . . ?
C23 C24 Br2 119.4(2) . . ?
C24 C25 C26 119.0(3) . . ?
C24 C25 H25 120.5 . . ?
C26 C25 H25 120.5 . . ?
C25 C26 C21 121.5(3) . . ?
C25 C26 H26 119.3 . . ?
C21 C26 H26 119.3 . . ?

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
C6 C1 C2 C3 -2.8(4) . . . . ?
Br1 C1 C2 C3 178.6(2) . . . . ?
C1 C2 C3 C4 0.8(4) . . . . ?
C2 C3 C4 C5 1.4(4) . . . . ?
C2 C3 C4 C7 -175.6(3) . . . . ?
C3 C4 C5 C6 -1.8(4) . . . . ?
C7 C4 C5 C6 175.2(3) . . . . ?
C2 C1 C6 C5 2.4(4) . . . . ?
Br1 C1 C6 C5 -179.0(2) . . . . ?
C4 C5 C6 C1 0.0(4) . . . . ?
C5 C4 C7 S1 -99.3(3) . . . . ?
C3 C4 C7 S1 77.7(3) . . . . ?
C8 S1 C7 C4 72.5(2) . . . . ?
C7 S1 C8 C9 -154.9(3) . . . . ?
S1 C8 C9 C10 1.6(5) . . . . ?
C15 N1 C10 C11 49.6(4) . . . . ?
C16 N1 C10 C11 -106.5(3) . . . . ?
C15 N1 C10 C9 -130.6(3) . . . . ?
C16 N1 C10 C9 73.3(3) . . . . ?
C8 C9 C10 C11 -151.6(3) . . . . ?
C8 C9 C10 N1 28.6(4) . . . . ?
N1 C10 C11 C12 -15.1(4) . . . . ?
C9 C10 C11 C12 165.0(3) . . . . ?
C10 C11 C12 C13 -36.4(4) . . . . ?
C11 C12 C13 C14 3.3(4) . . . . ?
C12 C13 C14 C15 68.5(3) . . . . ?
C12 C13 C14 C20 -169.7(3) . . . . ?
C10 N1 C15 O1 -169.6(2) . . . . ?
C16 N1 C15 O1 -13.4(4) . . . . ?
C10 N1 C15 C14 6.4(3) . . . . ?
C16 N1 C15 C14 162.5(2) . . . . ?
C13 C14 C15 O1 98.8(3) . . . . ?
C20 C14 C15 O1 -23.9(4) . . . . ?
C13 C14 C15 N1 -77.2(3) . . . . ?
C20 C14 C15 N1 160.0(2) . . . . ?
C15 N1 C16 C18 59.6(3) . . . . ?
C10 N1 C16 C18 -143.8(2) . . . . ?
C15 N1 C16 C19 -62.9(3) . . . . ?
C10 N1 C16 C19 93.8(3) . . . . ?
C15 N1 C16 C17 179.5(2) . . . . ?
C10 N1 C16 C17 -23.8(3) . . . . ?
C13 C14 C20 C21 68.6(3) . . . . ?
C15 C14 C20 C21 -173.6(2) . . . . ?
C14 C20 C21 C26 -110.7(3) . . . . ?
C14 C20 C21 C22 69.7(3) . . . . ?
C26 C21 C22 C23 1.1(4) . . . . ?
C20 C21 C22 C23 -179.2(2) . . . . ?
C21 C22 C23 C24 -0.8(4) . . . . ?
C22 C23 C24 C25 0.3(4) . . . . ?
C22 C23 C24 Br2 -179.8(2) . . . . ?
C23 C24 C25 C26 -0.2(4) . . . . ?
Br2 C24 C25 C26 179.9(2) . . . . ?
C24 C25 C26 C21 0.5(4) . . . . ?
C22 C21 C26 C25 -1.0(4) . . . . ?
C20 C21 C26 C25 179.4(2) . . . . ?

_diffrn_measured_fraction_theta_max 0.957
_diffrn_reflns_theta_full        26.48
_diffrn_measured_fraction_theta_full 0.957
_refine_diff_density_max         0.955
_refine_diff_density_min         -0.443
_refine_diff_density_rms         0.098