Metal-free regioselective B–O coupling in carboranes for constructing aggregation-induced emission luminogens
Li, Xinrui; Zhou, Ningning; Tu, Deshuang; Lu, Chang-sheng; Yan, Hong; Chemical Communications  (2026) –; doi:10.1039/D5CC03944D

data_7135289
_publ_section_title
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 Metal-free regioselective B--O coupling in carboranes for constructing
 aggregation-induced emission luminogens
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/D5CC03944D
_journal_year                    2026
_chemical_formula_moiety         'C9 H18 B9 N O2'
_chemical_formula_sum            'C9 H18 B9 N O2'
_chemical_formula_weight         269.53
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2025-08-27
_audit_creation_method
;
Olex2 1.5
(compiled 2025.07.13 svn.rb7424aed for OlexSys, GUI svn.r7314)
;
_audit_update_record
;
2025-09-25 deposited with the CCDC.	2025-11-27 downloaded from the CCDC.
;
_cell_angle_alpha                97.167(14)
_cell_angle_beta                 102.787(13)
_cell_angle_gamma                102.826(14)
_cell_formula_units_Z            2
_cell_length_a                   7.035(3)
_cell_length_b                   9.707(4)
_cell_length_c                   11.990(5)
_cell_measurement_reflns_used    2371
_cell_measurement_temperature    293.0
_cell_measurement_theta_max      27.23
_cell_measurement_theta_min      2.55
_cell_volume                     765.4(6)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_collection       'Bruker SMART Apex III CCD diffractometer'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2014/7 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293.0
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.977
_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  0.0402
_diffrn_reflns_av_unetI/netI     0.0595
_diffrn_reflns_Laue_measured_fraction_full 0.987
_diffrn_reflns_Laue_measured_fraction_max 0.977
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            6845
_diffrn_reflns_point_group_measured_fraction_full 0.987
_diffrn_reflns_point_group_measured_fraction_max 0.977
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.555
_diffrn_reflns_theta_min         1.772
_diffrn_source_current           40.0
_diffrn_source_power             1.8
_diffrn_source_voltage           45.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.068
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.5745
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1291 before and 0.0533 after correction.
The Ratio of minimum to maximum transmission is 0.7705.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.169
_exptl_crystal_description       block
_exptl_crystal_F_000             280
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.644
_refine_diff_density_min         -0.212
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.075
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     207
_refine_ls_number_reflns         3461
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.075
_refine_ls_R_factor_all          0.0993
_refine_ls_R_factor_gt           0.0687
_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^)+(0.0959P)^2^+0.2020P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1898
_refine_ls_wR_factor_ref         0.2126
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2303
_reflns_number_total             3461
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cc03944d2.cif
_cod_data_source_block           kkkkk_a
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7135289
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.989
_shelx_estimated_absorpt_t_min   0.986
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All B(H) groups, All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C006(H006), C008(H008), C009(H009), C00A(H00A), C00C(H00E)
2.b Idealised Me refined as rotating group:
 C00B(H00B,H00C,H00D)
2.c Boron cage BH refined with riding coordinates:
 B00G(H00H), B00H(H00I), B00I(H00J), B00J(H00K), B00K(H00L), B00L(H00M)
;
_shelx_res_checksum              22665
_olex2_submission_special_instructions 'No special instructions were received'