Synthesis of Alkali Metal Salts of Borylsilyl Anions Utilizing Highly Crowded Silylboranes and Their Properties#
Kajiwara, Takashi; Takeda, Nobuhiro; Sasamori, Takahiro; Tokitoh, Norihiro; Organometallics 27 (2008) 880–; doi:10.1021/om7008974

data_4070639
_publ_section_title
;
 Synthesis of Alkali Metal Salts of Borylsilyl Anions Utilizing Highly
 Crowded Silylboranes and Their Properties#
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              880
_journal_paper_doi               10.1021/om7008974
_journal_volume                  27
_journal_year                    2008
_chemical_formula_moiety         'C42 H83 B O2 Si7'
_chemical_formula_sum            'C42 H83 B O2 Si7'
_chemical_formula_weight         827.52
_chemical_name_common            SiBpinOH
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 110.042(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   35.738(19)
_cell_length_b                   13.262(6)
_cell_length_c                   22.777(12)
_cell_measurement_temperature    103(2)
_cell_volume                     10142(9)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalClear
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR97
_diffrn_ambient_temperature      103(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0828
_diffrn_reflns_av_sigmaI/netI    0.0967
_diffrn_reflns_limit_h_max       42
_diffrn_reflns_limit_h_min       -42
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            32784
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.87
_exptl_absorpt_coefficient_mu    0.219
_exptl_absorpt_correction_T_max  0.9784
_exptl_absorpt_correction_T_min  0.9273
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.084
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3632
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.525
_refine_diff_density_min         -0.375
_refine_diff_density_rms         0.069
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.149
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     495
_refine_ls_number_reflns         8933
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.149
_refine_ls_R_factor_all          0.1164
_refine_ls_R_factor_gt           0.0859
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0507P)^2^+32.0867P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1659
_refine_ls_wR_factor_ref         0.1804
_reflns_number_gt                6836
_reflns_number_total             8933
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om7008974-file001.cif
_cod_data_source_block           sibpinoh
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'multi scan' changed to
'multi-scan' 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_cell_volume        10141(9)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4070639