A silicon analogue of a fused bicyclic borirene derivative.
Phang, Si Jia Isabel; Zhang, Zheng-Feng; Wu, Chi-Shiun; Wong, Zhen Xuan; Su, Ming-Der; So, Cheuk-Wai; Chemical science 16 (2025) 4512–4518; doi:10.1039/d4sc05867d

data_1573787
_publ_section_title
;
 A silicon analogue of a fused bicyclic borirene derivative.
;
_journal_issue                   10
_journal_name_full               'Chemical science'
_journal_page_first              4512
_journal_page_last               4518
_journal_paper_doi               10.1039/d4sc05867d
_journal_volume                  16
_journal_year                    2025
_chemical_formula_sum            'C27 H40 B Cl I3 N2 P Si'
_chemical_formula_weight         878.63
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_update_record
;
2023-05-29 deposited with the CCDC.	2025-01-26 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 98.264(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.1943(8)
_cell_length_b                   20.6319(16)
_cell_length_c                   17.5682(14)
_cell_measurement_reflns_used    9996
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      31.5189
_cell_measurement_theta_min      2.4464
_cell_volume                     3298.0(5)
_computing_cell_refinement       'SAINT V8.40B (Bruker AXS LLC, 2019)'
_computing_data_collection       'APEX4 (Ver 2021.4-0, Bruker AXS Inc., 2021)'
_computing_data_reduction        'SAINT V8.40B (Bruker AXS LLC, 2019)'
_computing_publication_material  'APEX4 (Ver 2021.4-0, Bruker AXS Inc., 2021)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'XT, VERSION 2018/2'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector_area_resol_mean 7.3910
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Photon II CPAD detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  'Multilayer Mirror'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0586
_diffrn_reflns_av_unetI/netI     0.0428
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            66149
_diffrn_reflns_theta_full        25.24
_diffrn_reflns_theta_max         31.53
_diffrn_reflns_theta_min         1.97
_diffrn_source                   'Incoatec microfocus source'
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_type              'Bruker D8 Quest'
_diffrn_source_voltage           50
_exptl_absorpt_coefficient_mu    3.028
_exptl_absorpt_correction_T_max  0.71
_exptl_absorpt_correction_T_min  0.49
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Krause, L., Herbst-Irmer, R., Sheldrick, G. M., Stalke, D. (2015).
"Comparison of silver and molybdenum microfocus X-ray sources for
single-crystal structure determination"
J. Appl. Cryst. 48, 3-10.
doi:10.1107/S1600576714022985
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.770
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1704
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.140
_exptl_crystal_size_min          0.120
_refine_diff_density_max         2.042
_refine_diff_density_min         -1.219
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.188
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     335
_refine_ls_number_reflns         10942
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.188
_refine_ls_R_factor_all          0.0596
_refine_ls_R_factor_gt           0.0477
_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^)+(0.0162P)^2^+21.6657P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1016
_refine_ls_wR_factor_ref         0.1068
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9303
_reflns_number_total             10942
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4sc05867d2.cif
_cod_data_source_block           scw2689m
_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.

data item '_exptl_absorpt_correction_type' value 'Multi-Scan' was
changed to 'multi-scan' 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 

 Adding full bibliography for 1573783--1573788.cif.
;
_cod_database_code               1573787
_shelx_res_checksum              35982