Arene extrusion as an approach to reductive elimination at boron: implication of carbene-ligated haloborylene as a transient reactive intermediate.
Zhang, Chonghe; Gilliard, Jr, Robert J; Cummins, Christopher C.; Chemical science 15 (2024) 17873–17880; doi:10.1039/d4sc05524a

data_1572763
_publ_section_title
;
 Arene extrusion as an approach to reductive elimination at boron:
 implication of carbene-ligated haloborylene as a transient reactive
 intermediate.
;
_journal_issue                   43
_journal_name_full               'Chemical science'
_journal_page_first              17873
_journal_page_last               17880
_journal_paper_doi               10.1039/d4sc05524a
_journal_volume                  15
_journal_year                    2024
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C16 H24 B2 Cl2'
_chemical_formula_sum            'C16 H24 B2 Cl2'
_chemical_formula_weight         308.87
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_audit_creation_date             2023-07-12
_audit_creation_method
;
Olex2 1.5
(compiled 2023.03.06 svn.rbb2c1857 for OlexSys, GUI svn.r6748)
;
_audit_update_record
;
2023-09-26 deposited with the CCDC.	2024-10-02 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 94.308(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.5963(5)
_cell_length_b                   14.7551(8)
_cell_length_c                   13.3230(7)
_cell_measurement_reflns_used    5577
_cell_measurement_temperature    100.00
_cell_measurement_theta_max      27.408
_cell_measurement_theta_min      2.376
_cell_volume                     1685.11(16)
_computing_cell_refinement       'SAINT V8.38A (Bruker, 2018)'
_computing_data_reduction        'SAINT V8.38A (Bruker, 2018)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_computing_structure_solution    'olex2.solve 1.5 (Bourhis et al., 2015)'
_diffrn_ambient_temperature      100.00
_diffrn_measured_fraction_theta_full 1.000
_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  0.0408
_diffrn_reflns_av_unetI/netI     0.0304
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_number            4036
_diffrn_reflns_point_group_measured_fraction_full 0.521
_diffrn_reflns_point_group_measured_fraction_max 0.517
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.568
_diffrn_reflns_theta_min         1.533
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.372
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details
;
 TWINABS-2012/1 (Bruker,2012) was used for absorption correction.
 
For component 1:
 wR2(int) was 0.1148 before and 0.0457 after correction.
 
For component 2:
 wR2(int) was 0.1124 before and 0.0541 after correction.
 The Ratio of minimum to maximum transmission is 0.93.

Final HKLF 4 output contains 83802 reflections, Rint = 0.1194
 (41511 with I > 3sig(I), Rint = 0.0408)
;
_exptl_crystal_colour            'dull colourless'
_exptl_crystal_colour_lustre     dull
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.217
_exptl_crystal_description       plate
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.087
_exptl_crystal_size_mid          0.067
_exptl_crystal_size_min          0.012
_refine_diff_density_max         0.830
_refine_diff_density_min         -0.591
_refine_diff_density_rms         0.106
_refine_ls_abs_structure_details
;
No quotients, so Flack parameter determined by classical intensity fit
;
_refine_ls_abs_structure_Flack   0.06(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.082
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     377
_refine_ls_number_reflns         4036
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.082
_refine_ls_R_factor_all          0.0675
_refine_ls_R_factor_gt           0.0545
_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^)+(0.0622P)^2^+4.6360P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1415
_refine_ls_wR_factor_ref         0.1558
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    0.000
_reflns_Friedel_fraction_max     0.000
_reflns_number_gt                3766
_reflns_number_total             4036
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4sc05524a3.cif
_cod_data_source_block           1Cl
_cod_depositor_comments
'Adding full bibliography for 1572763--1572772.cif.'
_cod_database_code               1572763
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.996
_shelx_estimated_absorpt_t_min   0.968
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.5 times of:
  All C(H,H,H) groups
2.a Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C), C11(H11A,H11B,H11C), C12(H12A,H12B,H12C), C13(H13A,H13B,
 H13C), C14(H14A,H14B,H14C), C16(H16A,H16B,H16C), C17(H17A,H17B,H17C), C18(H18A,
 H18B,H18C), C24(H24A,H24B,H24C), C29(H29A,H29B,H29C), C30(H30A,H30B,H30C),
 C31(H31A,H31B,H31C), C32(H32A,H32B,H32C), C34(H34A,H34B,H34C), C35(H35A,H35B,
 H35C), C36(H36A,H36B,H36C)
;
_shelx_res_checksum              57258
_shelx_hkl_checksum              13187
_olex2_submission_special_instructions 'No special instructions were received'