A Pentacoordinate Boron-Containing π-Electron System with Cl-B-Cl Three-Center Four-Electron Bonds
Chuandong Dou; Shohei Saito; Shigehiro Yamaguchi; Journal of the American Chemical Society 135 (2013) 9346–9349; doi:10.1021/ja404724f

data_4119998
_publ_contact_author_address
'Nagoya University, Furo, Chikusa, Nagoya, Japan'
_publ_contact_author_email       yamaguchi@chem.nagoya-u.c.jp
_publ_contact_author_fax         +81-52-789-5947
_publ_contact_author_name        'Shigehiro Yamaguchi'
_publ_contact_author_phone       +81-52-789-2291
_publ_section_title
;
 A Pentacoordinate Boron-Containing \p-Electron System with Cl-B-Cl
 Three-Center Four-Electron Bonds
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9346
_journal_page_last               9349
_journal_paper_doi               10.1021/ja404724f
_journal_volume                  135
_journal_year                    2013
_chemical_formula_moiety         'C76 H66 B2 O4'
_chemical_formula_sum            'C76 H66 B2 O4'
_chemical_formula_weight         1064.91
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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                93.300(5)
_cell_angle_beta                 111.392(6)
_cell_angle_gamma                93.171(5)
_cell_formula_units_Z            2
_cell_length_a                   14.436(6)
_cell_length_b                   14.773(6)
_cell_length_c                   15.043(6)
_cell_measurement_reflns_used    7065
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      30.9975
_cell_measurement_theta_min      2.8448
_cell_volume                     2972(2)
_computing_cell_refinement       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_collection       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_reduction        'CrystalClear (Rigaku Corp., 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type
;
Saturn70 (4x4 bin mode)
;
_diffrn_measurement_method       dtprofit.ref
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0364
_diffrn_reflns_av_sigmaI/netI    0.0456
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            25769
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.85
_exptl_absorpt_coefficient_mu    0.071
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.9218
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Rigaku, 1995)'
_exptl_crystal_colour            Red
_exptl_crystal_density_diffrn    1.190
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1128
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.436
_refine_diff_density_min         -0.259
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.086
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     832
_refine_ls_number_reflns         10935
_refine_ls_number_restraints     108
_refine_ls_restrained_S_all      1.084
_refine_ls_R_factor_all          0.1043
_refine_ls_R_factor_gt           0.0823
_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^)+(0.1288P)^2^+1.4696P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2201
_refine_ls_wR_factor_ref         0.2390
_reflns_number_gt                8366
_reflns_number_total             10935
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja404724f_si_001_2.cif
_cod_data_source_block           compound5
_cod_database_code               4119998