Hypercoordinated Oligosilanes Based on Aminotrisphenols.
Aghazadeh Meshgi, Mohammad; Zaitsev, Kirill V.; Vener, Mikhail V.; Churakov, Andrei V.; Baumgartner, Judith; Marschner, Christoph; ACS omega 3 (2018) 10317–10330; doi:10.1021/acsomega.8b01402

data_4515951
_publ_section_title
;
 Hypercoordinated Oligosilanes Based on Aminotrisphenols.
;
_journal_issue                   8
_journal_name_full               'ACS omega'
_journal_page_first              10317
_journal_page_last               10330
_journal_paper_doi               10.1021/acsomega.8b01402
_journal_volume                  3
_journal_year                    2018
_chemical_formula_sum            'C54 H60 N2 O7 Si2'
_chemical_formula_weight         905.22
_space_group_IT_number           148
_space_group_name_Hall           '-R 3'
_space_group_name_H-M_alt        'R -3 :H'
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_H-M   'R -3 :H'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            3
_cell_length_a                   14.414(2)
_cell_length_b                   14.414(2)
_cell_length_c                   24.558(4)
_cell_measurement_reflns_used    6106
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      52.523
_cell_measurement_theta_min      4.652
_cell_volume                     4418.7(11)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'SMART APEX''
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0367
_diffrn_reflns_av_sigmaI/netI    0.0203
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            10420
_diffrn_reflns_theta_full        26.24
_diffrn_reflns_theta_max         26.24
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    0.105
_exptl_absorpt_correction_T_max  0.9814
_exptl_absorpt_correction_T_min  0.9553
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.021
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blocks
_exptl_crystal_F_000             1446
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.18
_platon_squeeze_details
;
;
_refine_diff_density_max         0.376
_refine_diff_density_min         -0.249
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     101
_refine_ls_number_reflns         1987
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0452
_refine_ls_R_factor_gt           0.0424
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0675P)^2^+4.5790P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1153
_refine_ls_wR_factor_ref         0.1175
_reflns_number_gt                1851
_reflns_number_total             1987
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ao8b01402_si_002.cif
_cod_data_source_block           1156
_cod_original_sg_symbol_H-M      R-3
_cod_database_code               4515951