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_1573784
_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            'C54 H80 B2 N4 P2 Si2'
_chemical_formula_weight         924.96
_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
_atom_sites_solution_primary     dual
_audit_update_record
;
2023-05-29 deposited with the CCDC.	2025-01-26 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 114.1872(13)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.9510(4)
_cell_length_b                   24.2287(10)
_cell_length_c                   11.9140(5)
_cell_measurement_reflns_used    6617
_cell_measurement_temperature    100.(2)
_cell_measurement_theta_max      27.3629
_cell_measurement_theta_min      2.3960
_cell_volume                     2620.29(19)
_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 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 Quest'
_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  0.1523
_diffrn_reflns_av_unetI/netI     0.0982
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            35324
_diffrn_reflns_theta_full        25.24
_diffrn_reflns_theta_max         27.51
_diffrn_reflns_theta_min         2.26
_diffrn_source                   'Incoatec microfocus source'
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_type              'Incoatec I\mS 3.0'
_diffrn_source_voltage           50
_exptl_absorpt_coefficient_mu    0.168
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.75
_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            black
_exptl_crystal_density_diffrn    1.172
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1000
_exptl_crystal_size_max          0.140
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.010
_refine_diff_density_max         0.537
_refine_diff_density_min         -0.384
_refine_ls_extinction_coef       0.0057(6)
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     276
_refine_ls_number_reflns         6013
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.1254
_refine_ls_R_factor_gt           0.0616
_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^)+(0.0158P)^2^+4.9744P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1079
_refine_ls_wR_factor_ref         0.1368
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3726
_reflns_number_total             6013
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4sc05867d2.cif
_cod_data_source_block           scw2763m
_cod_depositor_comments
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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               1573784
_shelx_res_checksum              18316