Dihydronium bromide tetrakis(di-<i>tert</i>-butylmethylsilanol)
Kückmann, Theresa I.; Lerner, Hans-Wolfram; Bolte, Michael; Acta Crystallographica Section E 63 (2007) o422–o423; doi:10.1107/S1600536806054985

data_2212171
_publ_section_title
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 Dihydronium bromide tetrakis(di-<i>tert</i>-butylmethylsilanol)
;
_journal_coeditor_code           GK2047
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o422
_journal_page_last               o423
_journal_paper_doi               10.1107/S1600536806054985
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'H3 O +, Br -, 4C9 H22 O Si, H2 O'
_chemical_formula_moiety         'H3 O +, Br -, 4(C9 H22 O Si), H2 O'
_chemical_formula_sum            'C36 H93 Br O6 Si4'
_chemical_formula_weight         814.36
_chemical_name_systematic
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Hydroxonium bromide tetrakis(di-<i>tert</i>-butylmethylsilanol) monohydrate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 98.510(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.4814(8)
_cell_length_b                   16.1107(5)
_cell_length_c                   20.0624(10)
_cell_measurement_reflns_used    53702
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.7
_cell_measurement_theta_min      3.5
_cell_volume                     5268.5(4)
_computing_cell_refinement       X-AREA
_computing_data_collection       'X-AREA (Stoe, 2001)'
_computing_data_reduction        X-AREA
_computing_molecular_graphics    'XP in SHELXTL-Plus (Sheldrick, 1991)'
_computing_publication_material  'SHELXL and PLATON'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Stoe IPDS-II two-circle'
_diffrn_measurement_method       \w
_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  0.0654
_diffrn_reflns_av_sigmaI/netI    0.0340
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            69100
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.69
_diffrn_reflns_theta_min         3.46
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.904
_exptl_absorpt_correction_T_max  0.8993
_exptl_absorpt_correction_T_min  0.7732
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(MULABS; Spek, 2003; Blessing, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.027
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1792
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.12
_refine_diff_density_max         1.370
_refine_diff_density_min         -0.425
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     440
_refine_ls_number_reflns         9889
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0631
_refine_ls_R_factor_gt           0.0485
_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^)+(0.0494P)^2^+4.5021P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1053
_refine_ls_wR_factor_ref         0.1112
_reflns_number_gt                8181
_reflns_number_total             9889
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            gk2047.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_original_formula_sum        'C36 H93 Br1 O6 Si4'
_cod_database_code               2212171
_cod_database_fobs_code          2212171