Boron-Functionalized Carbosilanes: Insertion of Carborane Clusters into Peripheral Silicon Atoms of Carbosilane Compounds
Núñez, Rosario; González-Campo, Arántzazu; Viñas, Clara; Teixidor, Francesc; Sillanpää, Reijo; Kivekäs, Raikko; Organometallics 24 (2005) 6351–; doi:10.1021/om050651+

data_4083946
_publ_section_title
;
 Boron-Functionalized Carbosilanes:&#x00A0; Insertion of Carborane
 Clusters into Peripheral Silicon Atoms of Carbosilane Compounds
;
_journal_issue                   26
_journal_name_full               Organometallics
_journal_page_first              6351
_journal_paper_doi               10.1021/om050651+
_journal_volume                  24
_journal_year                    2005
_chemical_formula_moiety         'C24 H84 B40 Si5'
_chemical_formula_sum            'C24 H84 B40 Si5'
_chemical_formula_weight         945.76
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           88
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-I 4ad'
_symmetry_space_group_name_H-M   'I 41/a :2'
_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            4
_cell_length_a                   20.7053(4)
_cell_length_b                   20.7053(4)
_cell_length_c                   13.5310(5)
_cell_measurement_reflns_used    2783
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.682
_cell_measurement_theta_min      2.91
_cell_volume                     5800.9(3)
_computing_cell_refinement       'HKL Scalepack (Otwinowsky & Minor, 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
;
HKL Denzo and Scalepack (Otwinowsky & Minor, 1997)
;
_computing_molecular_graphics    'SHELXTL/PC (Sheldrick, 1990)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       '\f scans, and \w scans with \k offsets'
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           Mok\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0530
_diffrn_reflns_av_sigmaI/netI    0.0812
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            4749
_diffrn_reflns_theta_full        25.68
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         3.31
_diffrn_source                   'Enraf Nonius FR590'
_diffrn_standards_decay_%        <1
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.148
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.083
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1992
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.213
_refine_diff_density_min         -0.244
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.099
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     158
_refine_ls_number_reflns         2748
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.099
_refine_ls_R_factor_all          0.1225
_refine_ls_R_factor_gt           0.0768
_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^)+(0.0522P)^2^+16.9050P] where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1700
_refine_ls_wR_factor_ref         0.1874
_reflns_number_gt                1800
_reflns_number_total             2748
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om050651%2Bsi20050729_114837.cif
_cod_data_source_block           compound_1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'I 41/a'
_cod_database_code               4083946