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_7134964
_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         'C28 H38 O2 Si3'
_chemical_formula_sum            'C28 H38 O2 Si3'
_chemical_formula_weight         490.85
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   direct
_audit_creation_date             2025-06-02
_audit_creation_method
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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                82.860(6)
_cell_angle_beta                 68.217(5)
_cell_angle_gamma                82.581(6)
_cell_formula_units_Z            2
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_cell_length_b                   12.0173(7)
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_cell_measurement_temperature    103.15
_cell_measurement_theta_max      27.54
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_cell_volume                     1439.02(17)
_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_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  0.0700
_diffrn_reflns_av_unetI/netI     0.0502
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            39037
_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         25.348
_diffrn_reflns_theta_min         2.990
_exptl_absorpt_coefficient_mu    0.186
_exptl_absorpt_correction_T_max  0.974267
_exptl_absorpt_correction_T_min  0.952007
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
 T.Higashi, Numerical Absorption Correction, NUMABS, 2002
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.133
_exptl_crystal_description       block
_exptl_crystal_F_000             528
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.3
_refine_diff_density_max         0.658
_refine_diff_density_min         -0.547
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.161
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     307
_refine_ls_number_reflns         5259
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.161
_refine_ls_R_factor_all          0.0738
_refine_ls_R_factor_gt           0.0634
_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^)+(0.0548P)^2^+1.5723P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1432
_refine_ls_wR_factor_ref         0.1484
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4725
_reflns_number_total             5259
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cc04234h3.cif
_cod_data_source_block           sb111kr4
_cod_depositor_comments
'Adding full bibliography for 7134962--7134969.cif.'
_cod_database_code               7134964
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.946
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_olex2_refinement_description
;
1.a Aromatic/amide H refined with riding coordinates:
 C8(H8), C15(H15), C16(H16), C17(H17), C18(H18), C19(H19), C21(H21), C22(H22),
 C23(H23), C24(H24), C25(H25)
1.b Idealised Me refined as rotating group:
 C5(H5A,H5B,H5C), C7(H7A,H7B,H7C), C10(H10A,H10B,H10C), C11(H11A,H11B,H11C),
 C12(H12A,H12B,H12C), C13(H13A,H13B,H13C), C26(H26A,H26B,H26C), C27(H27A,H27B,
 H27C), C28(H28A,H28B,H28C)
;
_shelx_res_checksum              93554
_olex2_submission_special_instructions 'No special instructions were received'