Oligosilanylsilatranes.
Aghazadeh Meshgi, Mohammad; Baumgartner, Judith; Marschner, Christoph; Organometallics 34 (2015) 3721–3731; doi:10.1021/acs.organomet.5b00404

data_4086119
_publ_section_title
;
 Oligosilanylsilatranes.
;
_journal_issue                   15
_journal_name_full               Organometallics
_journal_page_first              3721
_journal_page_last               3731
_journal_paper_doi               10.1021/acs.organomet.5b00404
_journal_volume                  34
_journal_year                    2015
_chemical_formula_sum            'C18 H35 N O3 Si4'
_chemical_formula_weight         425.83
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_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                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.188(4)
_cell_length_b                   10.488(2)
_cell_length_c                   23.506(5)
_cell_measurement_reflns_used    9409
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      52.391
_cell_measurement_theta_min      4.404
_cell_volume                     4730.4(17)
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0704
_diffrn_reflns_av_sigmaI/netI    0.0653
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            35342
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.73
_exptl_absorpt_coefficient_mu    0.268
_exptl_absorpt_correction_T_max  0.9685
_exptl_absorpt_correction_T_min  0.9508
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.196
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blocks
_exptl_crystal_F_000             1840
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.12
_platon_squeeze_details
;
;
_refine_diff_density_max         1.567
_refine_diff_density_min         -0.504
_refine_diff_density_rms         0.157
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.60(19)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.229
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     482
_refine_ls_number_reflns         9218
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      1.229
_refine_ls_R_factor_all          0.0961
_refine_ls_R_factor_gt           0.0910
_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^)+(0.1051P)^2^+8.5481P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2093
_refine_ls_wR_factor_ref         0.2124
_reflns_number_gt                8629
_reflns_number_total             9218
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om5b00404_si_002.cif
_cod_data_source_block           9_1128j
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 4086115--4086125.cif.
;
_cod_original_cell_volume        4730.6(16)
_cod_original_sg_symbol_H-M      Pca2(1)
_cod_database_code               4086119