Approach to the “Missing” Diarylsilylene: Formation, Characterization, and Intramolecular C–H Bond Activation of Blue Diarylsilylenes with Bulky Rind Groups
Mochihara, Kazuki; Morimoto, Tatsuto; Ota, Kei; Marumoto, Shinsuke; Hashizume, Daisuke; Matsuo, Tsukasa; International Journal of Molecular Sciences 25 (2024) 3761–; doi:10.3390/ijms25073761

data_1571396
_publ_section_title
;
 Approach to the &#x201C;Missing&#x201D; Diarylsilylene: Formation,
 Characterization, and Intramolecular C--H Bond Activation of Blue
 Diarylsilylenes with Bulky Rind Groups
;
_journal_issue                   7
_journal_name_full               'International Journal of Molecular Sciences'
_journal_page_first              3761
_journal_paper_doi               10.3390/ijms25073761
_journal_volume                  25
_journal_year                    2024
_chemical_formula_moiety         'C56 H92 O Si'
_chemical_formula_sum            'C56 H92 O Si'
_chemical_formula_weight         809.38
_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   difmap
_atom_sites_solution_primary     'dual space'
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2019/3
_cell_angle_alpha                90
_cell_angle_beta                 102.518(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.9236(3)
_cell_length_b                   18.9633(4)
_cell_length_c                   20.6577(5)
_cell_measurement_reflns_used    23979
_cell_measurement_temperature    100
_cell_measurement_theta_max      29.0150
_cell_measurement_theta_min      1.9280
_cell_volume                     4942.3(2)
_computing_cell_refinement       'CrysAlisPro 1.171.43.90 (Rigaku OD, 2023)'
_computing_data_collection
'CrysAlisPro system (CCD 39.46e (release 04-06-2018))'
_computing_data_reduction        'CrysAlisPro 1.171.43.90 (Rigaku OD, 2023)'
_computing_molecular_graphics    SHELXLE
_computing_publication_material  'SHELXL-2019/3 (Sheldrick, 2019)'
_computing_structure_refinement  'SHELXL-2019/3 (Sheldrick, 2019)'
_computing_structure_solution    SHELXT-2018/2
_diffrn_ambient_temperature      100
_diffrn_detector_area_resol_mean 5.8140
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.961
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB AFC12 (RINC): Kappa single'
_diffrn_measurement_method       \w-scan
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0700
_diffrn_reflns_av_unetI/netI     0.0501
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.961
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            122903
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.961
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.250
_diffrn_reflns_theta_min         1.939
_diffrn_source                   'Rotating anode'
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.674
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.43.90 (Rigaku Oxford Diffraction, 2023)
Numerical absorption correction based on gaussian integration over
a multifaceted crystal model
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.088
_exptl_crystal_description       block
_exptl_crystal_F_000             1800
_exptl_crystal_size_max          0.270
_exptl_crystal_size_mid          0.180
_exptl_crystal_size_min          0.120
_refine_diff_density_max         0.427
_refine_diff_density_min         -0.260
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     563
_refine_ls_number_reflns         12940
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0657
_refine_ls_R_factor_gt           0.0455
_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^)+(0.0506P)^2^+1.2550P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1070
_refine_ls_wR_factor_ref         0.1147
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9996
_reflns_number_total             12940
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            5b.cif
_cod_data_source_block           Silanol
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Gaussian' was
changed to 'gaussian' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/current/MDPI/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_sg_symbol_H-M      'P 21/c'
_cod_database_code               1571396
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_min   0.978
_shelx_estimated_absorpt_t_max   0.990
_shelx_res_checksum              53942
_shelx_hkl_checksum              74701