Substitution Reactions at Tetracoordinate Boron: Synthesis of N-Heterocyclic Carbene Boranes with Boron-Heteroatom Bonds
Andrey Solovyev; Qianli Chu; Steven J. Geib; Louis Fensterbank; Max Malacria; Emmanuel Lacôte; Dennis P. Curran; Journal of the American Chemical Society 132 (2010) 15072–15080; doi:10.1021/ja107025y

data_4103363
_publ_section_title
;
 Substitution Reactions at Tetracoordinate Boron: Synthesis of
 N-Heterocyclic Carbene Boranes with Boron-Heteroatom Bonds
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15072
_journal_page_last               15080
_journal_paper_doi               10.1021/ja107025y
_journal_volume                  132
_journal_year                    2010
_chemical_formula_sum            'C27 H35 I N2'
_chemical_formula_weight         514.47
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           56
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ab 2ac'
_symmetry_space_group_name_H-M   'P c c n'
_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                   10.7146(13)
_cell_length_b                   12.8217(16)
_cell_length_c                   19.089(2)
_cell_measurement_reflns_used    5935
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      32.17
_cell_measurement_theta_min      2.48
_cell_volume                     2622.4(5)
_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 0.964
_diffrn_measured_fraction_theta_max 0.964
_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  0.0216
_diffrn_reflns_av_sigmaI/netI    0.0125
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            30853
_diffrn_reflns_theta_full        32.35
_diffrn_reflns_theta_max         32.35
_diffrn_reflns_theta_min         2.13
_exptl_absorpt_coefficient_mu    1.236
_exptl_absorpt_correction_T_max  0.7475
_exptl_absorpt_correction_T_min  0.5770
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.303
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       robm
_exptl_crystal_F_000             1056
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.25
_refine_diff_density_max         1.246
_refine_diff_density_min         -0.290
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.095
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     207
_refine_ls_number_reflns         4531
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.095
_refine_ls_R_factor_all          0.0357
_refine_ls_R_factor_gt           0.0304
_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^)+(0.0780P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1042
_refine_ls_wR_factor_ref         0.1102
_reflns_number_gt                3913
_reflns_number_total             4531
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja107025y_si_010.cif
_cod_data_source_block           chu628s
_cod_depositor_comments
;

2021-08-28
Z value and formula fixed to values more according to usual
chemical conventions.                 miguel
;
_cod_original_formula_sum            'C108 H140 I4 N8'
_cod_original_formula_weight         2057.88
_cod_original_formula_units_Z            1
_cod_database_code               4103363