Diboramacrocycles: reversible borole dimerisation-dissociation systems.
Fuchs, Sonja; Jayaraman, Arumugam; Krummenacher, Ivo; Haley, Laura; Baštovanović, Marta; Fest, Maximilian; Radacki, Krzysztof; Helten, Holger; Braunschweig, Holger; Chemical science 13 (2022) 2932–2938; doi:10.1039/d1sc06908j

data_1566315
_publ_section_title
;
 Diboramacrocycles: reversible borole dimerisation-dissociation systems.
;
_journal_issue                   10
_journal_name_full               'Chemical science'
_journal_page_first              2932
_journal_page_last               2938
_journal_paper_doi               10.1039/d1sc06908j
_journal_volume                  13
_journal_year                    2022
_chemical_formula_moiety         'C38 H26 B2 N4 O2 S2'
_chemical_formula_sum            'C38 H26 B2 N4 O2 S2'
_chemical_formula_weight         656.37
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           'CIF-fill 1.2l (K.Radacki 2005-20)'
_audit_update_record
;
2021-12-03 deposited with the CCDC.	2022-01-17 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 112.808(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.299(3)
_cell_length_b                   18.859(4)
_cell_length_c                   13.574(3)
_cell_measurement_reflns_used    9887
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.36
_cell_measurement_theta_min      2.70
_cell_volume                     3138.2(12)
_computing_cell_refinement       'Saint+ ver. V8.40A (Bruker AXS)'
_computing_data_collection       'BIS 6.2.14 / APEX3 ver. 2018.1 (Bruker AXS)'
_computing_data_reduction        'Saint+ ver. V8.40A (Bruker AXS)'
_computing_molecular_graphics    'ShelXLe (Huebschle et all, 2011)'
_computing_publication_material  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT (Sheldrick, 2014)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CMOS area detector (Photon II)'
_diffrn_detector_area_resol_mean 7.5
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker D8-Quest'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'multi-layer mirror'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1212
_diffrn_reflns_av_unetI/netI     0.0512
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            55262
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.350
_diffrn_reflns_theta_max         25.350
_diffrn_reflns_theta_min         1.953
_diffrn_source                   'microfocus sealed tube (Incoatec ImS)'
_exptl_absorpt_coefficient_mu    0.213
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.6075
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SadAbs 2016/2 (Bruker AXS)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.389
_exptl_crystal_description       block
_exptl_crystal_F_000             1360
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.137
_exptl_crystal_size_min          0.133
_refine_diff_density_max         0.424
_refine_diff_density_min         -0.599
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     433
_refine_ls_number_reflns         5731
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0875
_refine_ls_R_factor_gt           0.0514
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0556P)^2^+2.9768P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1197
_refine_ls_wR_factor_ref         0.1392
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4032
_reflns_number_total             5731
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1sc06908j2.cif
_cod_data_source_block           4e
_cod_depositor_comments
'Adding full bibliography for 1566308--1566315.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1566315
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.949
_shelx_estimated_absorpt_t_max   0.972
_shelx_res_checksum              36584
_shelx_hkl_checksum              63831