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_7134963
_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         'C52 H50 O4 Si3'
_chemical_formula_sum            'C52 H50 O4 Si3'
_chemical_formula_weight         823.19
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-I 2yc'
_space_group_name_H-M_alt        'I 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   direct
_audit_creation_date             2022-03-10
_audit_creation_method
;
Olex2 1.5
(compiled 2021.12.09 svn.r5202d8cf for OlexSys, GUI svn.r6439)
;
_audit_update_record
;
2025-07-15 deposited with the CCDC.	2025-09-09 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 91.262(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.8570(12)
_cell_length_b                   11.1060(4)
_cell_length_c                   23.4549(14)
_cell_measurement_reflns_used    47936
_cell_measurement_temperature    103.15
_cell_measurement_theta_max      27.47
_cell_measurement_theta_min      3.04
_cell_volume                     4650.4(5)
_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    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      103.15
_diffrn_detector_area_resol_mean 10.0000
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID II'
_diffrn_measurement_method       dtprofit.ref
_diffrn_radiation_detector       RX
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0534
_diffrn_reflns_av_unetI/netI     0.0203
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            52667
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.351
_diffrn_reflns_theta_min         3.040
_diffrn_source                   'Sealed Tube'
_exptl_absorpt_coefficient_mu    0.145
_exptl_absorpt_correction_T_max  0.993949
_exptl_absorpt_correction_T_min  0.988007
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
T.Higashi, Numerical Absorption Correction, NUMABS, 2002
T.Higashi, Empirical Absorption Correction, 2001
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.176
_exptl_crystal_description       block
_exptl_crystal_F_000             1744
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.301
_refine_diff_density_min         -0.282
_refine_diff_density_rms         0.039
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.213
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     270
_refine_ls_number_reflns         4251
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.213
_refine_ls_R_factor_all          0.0613
_refine_ls_R_factor_gt           0.0500
_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^)+(0.0282P)^2^+5.5110P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0933
_refine_ls_wR_factor_ref         0.0973
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3789
_reflns_number_total             4251
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cc04234h3.cif
_cod_data_source_block           shelx
_cod_depositor_comments
'Adding full bibliography for 7134962--7134969.cif.'
_cod_database_code               7134963
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.965
_shelx_estimated_absorpt_t_min   0.958
_olex2_refinement_description
;
1.a Aromatic/amide H refined with riding coordinates:
 C4(H4), C7(H7), C8(H8), C9(H9), C10(H10), C11(H11), C13(H13), C14(H14),
 C15(H15), C16(H16), C17(H17), C22(H22), C23(H23), C24(H24), C25(H25), C26(H26)
1.b Idealised Me refined as rotating group:
 C18(H18A,H18B,H18C), C19(H19A,H19B,H19C), C20(H20A,H20B,H20C)
;
_shelx_res_checksum              14735
_olex2_submission_special_instructions 'No special instructions were received'