Monocarborane-stabilized iodonium salts enable regioselective B12-iodination of [CB<sub>11</sub>H<sub>12</sub>]<sup/>.
Jiang, Chennuo; Chen, Lianyu; Jin, Yujie; Liu, Jiyong; Zhang, Kang; Duttwyler, Simon; Dalton transactions (Cambridge, England : 2003) 55 (2026) 1109–1113; doi:10.1039/d5dt02721g

data_7720511
_publ_section_title
;
 Monocarborane-stabilized iodonium salts enable regioselective
 B12-iodination of [CB<sub>11</sub>H<sub>12</sub>]<sup/>.
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1109
_journal_page_last               1113
_journal_paper_doi               10.1039/d5dt02721g
_journal_volume                  55
_journal_year                    2026
_chemical_formula_moiety         'C12 H14 I N2, C H6 B11 I6'
_chemical_formula_sum            'C13 H20 B11 I7 N2'
_chemical_formula_weight         1211.52
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2025-04-08
_audit_creation_method
;
Olex2 1.5
(compiled 2025.03.04 svn.red2d20d0 for OlexSys, GUI svn.r7188)
;
_audit_update_record
;
2025-07-14 deposited with the CCDC.	2025-12-23 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 96.6910(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.8617(4)
_cell_length_b                   17.0838(6)
_cell_length_c                   18.6279(7)
_cell_measurement_reflns_used    9089
_cell_measurement_temperature    170.00
_cell_measurement_theta_max      60.556
_cell_measurement_theta_min      3.063
_cell_volume                     3117.0(2)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_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    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      170.00
_diffrn_detector                 CPAD
_diffrn_detector_area_resol_mean 7.41
_diffrn_detector_type            'Bruker PHOTON III M28'
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 VENTURE Metaljet PHOTON III'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_measurement_specimen_support 'MiTeGen micromount'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           GaK\a
_diffrn_radiation_wavelength     1.34139
_diffrn_reflns_av_R_equivalents  0.0451
_diffrn_reflns_av_unetI/netI     0.0370
_diffrn_reflns_Laue_measured_fraction_full 0.988
_diffrn_reflns_Laue_measured_fraction_max 0.989
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            34927
_diffrn_reflns_point_group_measured_fraction_full 0.988
_diffrn_reflns_point_group_measured_fraction_max 0.989
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         60.603
_diffrn_reflns_theta_min         3.926
_diffrn_source                   'liquid Metal X-ray source'
_diffrn_source_current           3.57
_diffrn_source_power             0.24954300000000001
_diffrn_source_type              'Bruker Excillum Metaljet D2+'
_diffrn_source_voltage           69.9
_exptl_absorpt_coefficient_mu    37.937
_exptl_absorpt_correction_T_max  0.7519
_exptl_absorpt_correction_T_min  0.2282
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1505 before and 0.0782 after correction.
The Ratio of minimum to maximum transmission is 0.3035.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    2.582
_exptl_crystal_description       block
_exptl_crystal_F_000             2152
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.423
_refine_diff_density_min         -2.153
_refine_diff_density_rms         0.277
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     300
_refine_ls_number_reflns         7078
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.0379
_refine_ls_R_factor_gt           0.0359
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0602P)^2^+5.1966P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0903
_refine_ls_wR_factor_ref         0.0915
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6625
_reflns_number_total             7078
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5dt02721g2.cif
_cod_data_source_block           250404_jcn_34
_cod_database_code               7720511
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_max   0.312
_shelx_estimated_absorpt_t_min   0.084
_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:
 C2(H2), C3(H3), C5(H5), C6(H6), C8(H8), C9(H9), C11(H11), C12(H12)
2.b Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C), C13(H13A,H13B,H13C)
2.c Boron cage BH refined with riding coordinates:
 C1(H1), B1(H1A), B2(H2A), B3(H3A), B4(H4), B5(H5A)
;
_shelx_res_checksum              44796
_shelx_hkl_checksum              28910
_olex2_diffrn_ambient_temperature_device 'Oxford Cryostream 800'
_olex2_submission_special_instructions 'No special instructions were received'