Bulky derivatives of boranes, boronic acids and boronate esters via reaction with diazomethanes.
Neu, Rebecca C.; Jiang, Chunfang; Stephan, Douglas W.; Dalton transactions (Cambridge, England : 2003) 42 (2013) 726–736; doi:10.1039/c2dt31868g

data_7020741
_publ_section_title
;
 Bulky derivatives of boranes, boronic acids and boronate esters via
 reaction with diazomethanes.
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              726
_journal_page_last               736
_journal_paper_doi               10.1039/c2dt31868g
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C57 H45 B3 O3'
_chemical_formula_weight         810.36
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                92.454(4)
_cell_angle_beta                 97.710(4)
_cell_angle_gamma                109.598(2)
_cell_formula_units_Z            2
_cell_length_a                   9.5553(5)
_cell_length_b                   11.0517(6)
_cell_length_c                   21.8569(13)
_cell_measurement_reflns_used    7868
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.54
_cell_measurement_theta_min      2.29
_cell_volume                     2145.2(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      150(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0487
_diffrn_reflns_av_sigmaI/netI    0.0623
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            48640
_diffrn_reflns_theta_full        30.69
_diffrn_reflns_theta_max         30.69
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.6894
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.255
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             852
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.195
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.367
_refine_diff_density_min         -0.237
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     748
_refine_ls_number_reflns         13141
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.1005
_refine_ls_R_factor_gt           0.0540
_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^)+(0.0596P)^2^+0.2823P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1180
_refine_ls_wR_factor_ref         0.1375
_reflns_number_gt                8190
_reflns_number_total             13141
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt31868g.txt
_cod_data_source_block           rcn064b_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7020741