Synthesis and Structural Characterization of Pentaarylboroles and Their Dianions
So, Cheuk-Wai; Watanabe, Daisuke; Wakamiya, Atsushi; Yamaguchi, Shigehiro; Organometallics 27 (2008) 3496–; doi:10.1021/om8002812

data_4071629
_publ_section_title
;
 Synthesis and Structural Characterization of Pentaarylboroles and Their
 Dianions
;
_journal_issue                   14
_journal_name_full               Organometallics
_journal_page_first              3496
_journal_paper_doi               10.1021/om8002812
_journal_volume                  27
_journal_year                    2008
_chemical_formula_sum            'C37 H30 B Si'
_chemical_formula_weight         513.51
_chemical_melting_point          421
_chemical_name_systematic
; 
1-(4-trimetylsilylphenyl)-
2,3,4,5-tetraphenylborole 
;
_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                 94.149(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   18.900(5)
_cell_length_b                   15.875(4)
_cell_length_c                   19.674(5)
_cell_measurement_reflns_used    16702
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.9975
_cell_measurement_theta_min      2.2064
_cell_volume                     5887(3)
_computing_molecular_graphics    'ORTEP 3 for windows'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type
;
Saturn70 CCD (4x4 bin mode) with MicroMax-007
;
_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  0.0400
_diffrn_reflns_av_sigmaI/netI    0.0475
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            19415
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.77
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_T_max  0.9979
_exptl_absorpt_correction_T_min  0.9796
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.159
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2168
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.513
_refine_diff_density_min         -0.343
_refine_diff_density_rms         0.049
_refine_ls_extinction_coef       none
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.107
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     475
_refine_ls_number_reflns         5134
_refine_ls_number_restraints     56
_refine_ls_restrained_S_all      1.120
_refine_ls_R_factor_all          0.0806
_refine_ls_R_factor_gt           0.0633
_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^)+(0.0795P)^2^+6.4952P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1568
_refine_ls_wR_factor_ref         0.1692
_reflns_number_gt                4102
_reflns_number_total             5134
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om8002812-file004.cif
_cod_data_source_block           comp3
_cod_original_cell_volume        5888(3)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4071629