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_1566308
_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_absolute_configuration unk
_chemical_formula_moiety         'C37 H32 B P S'
_chemical_formula_sum            'C37 H32 B P S'
_chemical_formula_weight         550.46
_space_group_crystal_system      monoclinic
_space_group_IT_number           9
_space_group_name_Hall           'C -2yc'
_space_group_name_H-M_alt        'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           'CIF-fill 1.2u (K.Radacki 2005-21)'
_audit_update_record
;
2021-12-03 deposited with the CCDC.	2022-01-17 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 123.59(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   20.883(11)
_cell_length_b                   8.704(4)
_cell_length_c                   19.093(7)
_cell_measurement_reflns_used    6061
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.56
_cell_measurement_theta_min      2.34
_cell_volume                     2891(2)
_computing_cell_refinement       'Saint+ ver. V8.40A (Bruker AXS)'
_computing_data_collection       'BIS 6.2.14 / APEX3 ver. 2019.1 (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                 CPA
_diffrn_detector_area_resol_mean 7.5
_diffrn_detector_type            'Photon II'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device       'four-circle diffractometer'
_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  0.0979
_diffrn_reflns_av_unetI/netI     0.0829
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.983
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            24459
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.980
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         26.928
_diffrn_reflns_theta_min         2.325
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'Incoatec ImS 2.0'
_exptl_absorpt_coefficient_mu    0.193
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.5184
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SadAbs 2016/2 (Bruker AXS)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.265
_exptl_crystal_description       block
_exptl_crystal_F_000             1160
_exptl_crystal_size_max          0.251
_exptl_crystal_size_mid          0.147
_exptl_crystal_size_min          0.144
_refine_diff_density_max         0.368
_refine_diff_density_min         -0.531
_refine_diff_density_rms         0.054
_refine_ls_abs_structure_details
;
 Flack x determined using 1846 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.03(7)
_refine_ls_extinction_coef       0.0053(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     465
_refine_ls_number_reflns         6147
_refine_ls_number_restraints     278
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0765
_refine_ls_R_factor_gt           0.0526
_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^)+(0.0521P)^2^+0.2699P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1124
_refine_ls_wR_factor_ref         0.1255
_reflns_Friedel_coverage         0.993
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.977
_reflns_number_gt                4738
_reflns_number_total             6147
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1sc06908j2.cif
_cod_data_source_block           2a-P
_cod_depositor_comments
'Adding full bibliography for 1566308--1566315.cif.'
_cod_original_sg_symbol_H-M      'C c'
_cod_database_code               1566308
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.953
_shelx_estimated_absorpt_t_max   0.973
_shelx_res_checksum              14040
_shelx_hkl_checksum              25326