Reductive dimerization of benzothiazolium salts.
Shaikh, Aijaz; Sahoo, Satyajit; Marder, Seth R.; Barlow, Stephen; Mohapatra, Swagat K.; Organic & biomolecular chemistry 22 (2024) 2115–2123; doi:10.1039/d3ob01871g

data_7159875
_publ_section_title
;
 Reductive dimerization of benzothiazolium salts.
;
_journal_issue                   10
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              2115
_journal_page_last               2123
_journal_paper_doi               10.1039/d3ob01871g
_journal_volume                  22
_journal_year                    2024
_chemical_formula_moiety         'C30 H28 N2 O2 S2'
_chemical_formula_sum            'C30 H28 N2 O2 S2'
_chemical_formula_weight         512.66
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2019/1
_audit_update_record
;
2023-09-08 deposited with the CCDC.	2024-01-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   16.7536(11)
_cell_length_b                   20.1967(13)
_cell_length_c                   7.9477(5)
_cell_measurement_reflns_used    9919
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      27.13
_cell_measurement_theta_min      2.35
_cell_volume                     2689.2(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2019/1 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0724
_diffrn_reflns_av_unetI/netI     0.0373
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            57528
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.495
_diffrn_reflns_theta_min         2.355
_exptl_absorpt_coefficient_mu    0.228
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6589
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.,
 J. Appl. Cryst. 48 (2015) 3-10
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.266
_exptl_crystal_description       block
_exptl_crystal_F_000             1080
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.225
_refine_diff_density_min         -0.222
_refine_diff_density_rms         0.040
_refine_ls_abs_structure_details
;
 Flack x determined using 1886 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.04(3)
_refine_ls_extinction_coef       0.016(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2019/1 (Sheldrick 2019)'
_refine_ls_goodness_of_fit_ref   1.091
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     330
_refine_ls_number_reflns         6155
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.091
_refine_ls_R_factor_all          0.0692
_refine_ls_R_factor_gt           0.0385
_refine_ls_shift/su_max          0.019
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0557P)^2^+0.5484P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0944
_refine_ls_wR_factor_ref         0.1223
_reflns_Friedel_coverage         0.865
_reflns_Friedel_fraction_full    0.996
_reflns_Friedel_fraction_max     0.995
_reflns_number_gt                4670
_reflns_number_total             6177
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3ob01871g2.cif
_cod_data_source_block           T_S2
_cod_database_code               7159875
_shelx_shelxl_version_number     2019/1
_shelx_res_checksum              34223
_shelx_hkl_checksum              75256