Rapid, iterative syntheses of unsymmetrical di- and triarylboranes from crystalline aryldifluoroboranes.
Turnbull, Douglas; Légaré, Marc-André; Chemical science 14 (2023) 14256–14261; doi:10.1039/d3sc05071h

data_1570344
_publ_section_title
;
 Rapid, iterative syntheses of unsymmetrical di- and triarylboranes from
 crystalline aryldifluoroboranes.
;
_journal_issue                   48
_journal_name_full               'Chemical science'
_journal_page_first              14256
_journal_page_last               14261
_journal_paper_doi               10.1039/d3sc05071h
_journal_volume                  14
_journal_year                    2023
_chemical_formula_moiety         'C11 H19 B Br3 N Si'
_chemical_formula_sum            'C11 H19 B Br3 N Si'
_chemical_formula_weight         443.900
_chemical_name_systematic
'boron tribromide - N,N-dimethyl-4-trimethylsilylaniline'
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_Int_Tables_number      61
_atom_sites_solution_primary     dual
_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
;
2023-09-03 deposited with the CCDC.	2023-11-17 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   14.1780(3)
_cell_length_b                   12.3840(3)
_cell_length_c                   19.5169(4)
_cell_measurement_reflns_used    9962
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      74.221
_cell_measurement_theta_min      5.249
_cell_volume                     3426.78(13)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'olex2.refine 1.5 (Bourhis et al., 2015)'
_computing_structure_solution    'SHELXT  (Sheldrick, 2015)'
_diffrn_ambient_temperature      298.15
_diffrn_measured_fraction_theta_full 0.9861
_diffrn_measured_fraction_theta_max 0.9869
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0468
_diffrn_reflns_av_unetI/netI     0.0314
_diffrn_reflns_Laue_measured_fraction_full 0.9861
_diffrn_reflns_Laue_measured_fraction_max 0.9869
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            23902
_diffrn_reflns_point_group_measured_fraction_full 0.9861
_diffrn_reflns_point_group_measured_fraction_max 0.9869
_diffrn_reflns_theta_full        67.6786
_diffrn_reflns_theta_max         74.78
_diffrn_reflns_theta_min         5.26
_exptl_absorpt_coefficient_mu    9.241
_exptl_absorpt_correction_T_max  0.7538
_exptl_absorpt_correction_T_min  0.2830
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1570 before and 0.0586 after correction.
The Ratio of minimum to maximum transmission is 0.3754.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.721
_exptl_crystal_description       needle
_exptl_crystal_F_000             1716.538
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.9608
_refine_diff_density_min         -0.8355
_refine_diff_density_rms         0.0988
_refine_ls_d_res_high            0.7989
_refine_ls_d_res_low             8.4154
_refine_ls_extinction_coef       0.00063(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_goodness_of_fit_ref   1.0599
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_constraints    28
_refine_ls_number_parameters     160
_refine_ls_number_reflns         3472
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.0599
_refine_ls_R_factor_all          0.0446
_refine_ls_R_factor_gt           0.0384
_refine_ls_shift/su_max          -0.0009
_refine_ls_shift/su_mean         0.0000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0421P)^2^+5.9172P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0926
_refine_ls_wR_factor_ref         0.1020
_reflns_Friedel_coverage         0.0
_reflns_limit_h_max              17
_reflns_limit_h_min              0
_reflns_limit_k_max              15
_reflns_limit_k_min              0
_reflns_limit_l_max              24
_reflns_limit_l_min              0
_reflns_number_gt                3019
_reflns_number_total             3472
_reflns_threshold_expression     I>=2u(I)
_cod_data_source_file            d3sc05071h2.cif
_cod_data_source_block           BBr3_dmaTMS
_cod_depositor_comments
'Adding full bibliography for 1570333--1570346.cif.'
_cod_database_code               1570344
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C5(H5), C6(H6)
2.b Idealised Me refined as rotating group:
 C7(H7a,H7b,H7c), C8(H8a,H8b,H8c), C9(H9a,H9b,H9c), C10(H10a,H10b,H10c),
 C11(H11a,H11b,H11c)
;
_olex2_submission_special_instructions 'No special instructions were received'