Synthesis and characterization of the first neutral hexacoordinated silole complexes.
Szathmári, Balázs; Holczbauer, Tamás; Balterer, Bence; Domján, Attila; Volk, Balázs; Kovács, Ilona; Kelemen, Zsolt; Chemical communications (Cambridge, England) 61 (2025) 16042–16045; doi:10.1039/d5cc04234h

data_7134966
_publ_section_title
;
 Synthesis and characterization of the first neutral hexacoordinated
 silole complexes.
;
_journal_issue                   82
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              16042
_journal_page_last               16045
_journal_paper_doi               10.1039/d5cc04234h
_journal_volume                  61
_journal_year                    2025
_chemical_formula_moiety         'C27 H34 O2 Si3'
_chemical_formula_sum            'C27 H34 O2 Si3'
_chemical_formula_weight         474.81
_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   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   direct
_audit_creation_date             2025-06-04
_audit_creation_method
;
Olex2 1.5
(compiled 2025.05.31 svn.r86d253d1 for OlexSys, GUI svn.r7254)
;
_audit_update_record
;
2025-07-15 deposited with the CCDC.	2025-09-09 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 91.290(6)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.8977(2)
_cell_length_b                   18.3039(4)
_cell_length_c                   13.5149(3)
_cell_measurement_reflns_used    61036
_cell_measurement_temperature    121(2)
_cell_measurement_theta_max      68.28
_cell_measurement_theta_min      3.27
_cell_volume                     2695.14(10)
_computing_cell_refinement       'Crystal Clear V.1.4.1 (Rigaku/MSC, 2007)'
_computing_data_collection       'Crystal Clear V.1.4.1 (Rigaku/MSC, 2007)'
_computing_data_reduction        'Crystal Clear V.1.4.1 (Rigaku/MSC, 2007)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      121.15
_diffrn_detector_area_resol_mean 10.0000
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID II'
_diffrn_measurement_method       dtprofit.ref
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54187
_diffrn_reflns_av_R_equivalents  0.0387
_diffrn_reflns_av_unetI/netI     0.0171
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            64999
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        67.687
_diffrn_reflns_theta_max         68.231
_diffrn_reflns_theta_min         4.058
_exptl_absorpt_coefficient_mu    1.776
_exptl_absorpt_correction_T_max  0.958335
_exptl_absorpt_correction_T_min  0.931373
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
 T.Higashi, Numerical Absorption Correction, NUMABS, 2002
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.170
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       chunk
_exptl_crystal_F_000             1016
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.5
_exptl_crystal_size_min          0.5
_refine_diff_density_max         0.267
_refine_diff_density_min         -0.226
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.278
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     308
_refine_ls_number_reflns         4912
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.278
_refine_ls_R_factor_all          0.0474
_refine_ls_R_factor_gt           0.0468
_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^)+(0.0270P)^2^+1.9784P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1022
_refine_ls_wR_factor_ref         0.1025
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4874
_reflns_number_total             4912
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cc04234h3.cif
_cod_data_source_block           kfo287
_cod_depositor_comments
'Adding full bibliography for 7134962--7134969.cif.'
_cod_database_code               7134966
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.470
_shelx_estimated_absorpt_t_min   0.415
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.5 times of:
  All C(H) groups
 At 1.3 times of:
  {H9A,H9B,H9C} of C9
 At 1.4 times of:
  {H10A,H10B,H10C} of C10, {H27A,H27B,H27C} of C27, {H11A,H11B,H11C} of C11,
  {H25A,H25B,H25C} of C25, {H12A,H12B,H12C} of C12, {H26A,H26B,H26C} of C26
2.a Aromatic/amide H refined with riding coordinates:
 C14(H14), C15(H15), C16(H16), C17(H17), C18(H18), C20(H20), C21(H21),
 C22(H22), C23(H23), C24(H24)
2.b Idealised Me refined as rotating group:
 C9(H9A,H9B,H9C), C10(H10A,H10B,H10C), C11(H11A,H11B,H11C), C12(H12A,H12B,
 H12C), C25(H25A,H25B,H25C), C26(H26A,H26B,H26C), C27(H27A,H27B,H27C)
;
_shelx_res_checksum              81114
_olex2_submission_special_instructions 'No special instructions were received'