Bridging Lewis Acidic Antimony Centers with Electron-Withdrawing Carborane Cages
Rubio, Victoria P.; Durham, Mckinley H.; Scurria, Matthew; Kerr, Tyler A.; Gutierrez, Osvaldo; Spokoyny, Alex; Chemical Science  (2026) –; doi:10.1039/D6SC00316H

data_1577072
_publ_section_title
;
 Bridging Lewis Acidic Antimony Centers with Electron-Withdrawing
 Carborane Cages
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/D6SC00316H
_journal_year                    2026
_chemical_formula_moiety         'C26 H30 B10 Sb2, 2(C7 H8)'
_chemical_formula_sum            'C40 H46 B10 Sb2'
_chemical_formula_weight         878.37
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     'dual space'
_audit_creation_method
;FinalCif V154 by Daniel Kratzert, Freiburg 2025, 
https://dkratzert.de/finalcif.html
;
_audit_update_record
;
2025-12-10 deposited with the CCDC.	2026-04-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 133.3752(15)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   28.040(2)
_cell_length_b                   9.8956(8)
_cell_length_c                   19.6271(15)
_cell_measurement_reflns_used    9805
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.5115
_cell_measurement_theta_min      2.288
_cell_volume                     3958.5(5)
_computing_cell_refinement       'SAINT V8.41'
_computing_data_collection       'Bruker BIS 2021.1.0.5/14-Jul-2021'
_computing_data_reduction        'SAINT V8.41'
_computing_molecular_graphics    'ShelXle (H\"ubschle 2011)'
_computing_structure_refinement  'SHELXL-2019/2 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXD (G. Sheldrick)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 CCD
_diffrn_detector_type            'Bruker Apex-II CCD'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 three-axis goniometer'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  Triumph
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0574
_diffrn_reflns_av_unetI/netI     0.0250
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            9412
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.018
_diffrn_reflns_theta_max         25.018
_diffrn_reflns_theta_min         1.998
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           30
_diffrn_source_type              K780
_diffrn_source_voltage           50
_exptl_absorpt_coefficient_mu    1.394
_exptl_absorpt_correction_T_max  0.74607
_exptl_absorpt_correction_T_min  0.68124
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;TWINABS - Bruker AXS scaling for twinned crystals - Version 2012/1: Krause, L., 
Herbst-Irmer, R., Sheldrick G.M. & Stalke D., J. Appl. Cryst. 48 (2015) 3-10
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.474
_exptl_crystal_description       block
_exptl_crystal_F_000             1752
_exptl_crystal_size_max          0.250
_exptl_crystal_size_mid          0.235
_exptl_crystal_size_min          0.120
_refine_diff_density_max         1.605
_refine_diff_density_min         -0.602
_refine_diff_density_rms         0.140
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.206
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     237
_refine_ls_number_reflns         9412
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.206
_refine_ls_R_factor_all          0.0520
_refine_ls_R_factor_gt           0.0455
_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^)+53.0058P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1042
_refine_ls_wR_factor_ref         0.1085
_reflns_Friedel_coverage         0.000
_reflns_number_gt                8560
_reflns_number_total             9412
_reflns_threshold_expression     'I > 2\s(I)'
_twin_special_details
'The data was integrated as a 2-component twin. '
_twin_individual_id              2
_twin_individual_twin_matrix_11  0.13211
_twin_individual_twin_matrix_12  -0.06804
_twin_individual_twin_matrix_13  0.9656
_twin_individual_twin_matrix_21  0.99887
_twin_individual_twin_matrix_22  0.00721
_twin_individual_twin_matrix_23  -0.01287
_twin_individual_twin_matrix_31  -0.07616
_twin_individual_twin_matrix_32  1.03205
_twin_individual_twin_matrix_33  0.03406
_cod_data_source_file            d6sc00316h2.cif
_cod_data_source_block           as96vr
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_diffrn_radiation_probe' value 'X-ray' was changed to
'x-ray' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 8170 2020-07-09 18:12:32Z antanas 
;
_cod_original_cell_volume        3958.6(5)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               1577072
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_min   0.722
_shelx_estimated_absorpt_t_max   0.851
_diffrn_measurement_ambient_temperature_device_make 'Oxford Cryostream 700'
_shelx_res_checksum              84534