A planarized B-phenyldibenzoborepin: Impacts of the structural constraint on its electronic properties and Lewis acidity
Ando, Naoki; Kushida, Tomokatsu; Yamaguchi, Shigehiro; Chemical Communications  (2018) –; doi:10.1039/C8CC02837K

data_7121550
_publ_section_title
;
 A planarized B-phenyldibenzoborepin: Impacts of the structural constraint
 on its electronic properties and Lewis acidity
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C8CC02837K
_journal_year                    2018
_chemical_formula_moiety         'C26 H23 B'
_chemical_formula_sum            'C26 H23 B'
_chemical_formula_weight         346.25
_space_group_crystal_system      trigonal
_space_group_IT_number           148
_space_group_name_Hall           '-R 3'
_space_group_name_H-M_alt        'R -3'
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2017/1
_audit_update_record
;
2018-03-02 deposited with the CCDC.
2018-04-23 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            18
_cell_length_a                   33.652(8)
_cell_length_b                   33.652(8)
_cell_length_c                   8.379(2)
_cell_measurement_reflns_used    4838
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2.4
_cell_volume                     8218(3)
_computing_structure_refinement  'SHELXL-2017/1 (Sheldrick, 2017)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
;
Rigaku Single Crystal X-ray diffractometer equipped with 
FR-X generator, Varimax optics, and PILATUS 200K photon 
counting detector
;
_diffrn_radiation_type           MoKa
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0190
_diffrn_reflns_av_unetI/netI     0.0090
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       40
_diffrn_reflns_limit_h_min       -40
_diffrn_reflns_limit_k_max       40
_diffrn_reflns_limit_k_min       -39
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            23539
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        24.997
_diffrn_reflns_theta_max         24.997
_diffrn_reflns_theta_min         3.055
_exptl_absorpt_coefficient_mu    0.070
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.959
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.259
_exptl_crystal_description       block
_exptl_crystal_F_000             3312
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.300
_exptl_crystal_size_min          0.250
_refine_diff_density_max         0.226
_refine_diff_density_min         -0.178
_refine_diff_density_rms         0.035
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     248
_refine_ls_number_reflns         3210
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0375
_refine_ls_R_factor_gt           0.0338
_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^)+(0.0415P)^2^+9.7646P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0836
_refine_ls_wR_factor_ref         0.0865
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2919
_reflns_number_total             3210
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8cc02837k2.cif
_cod_data_source_block           compound_2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_cell_volume        8218(5)
_cod_database_code               7121550
_shelx_shelxl_version_number     2017/1
_shelx_estimated_absorpt_t_min   0.979
_shelx_estimated_absorpt_t_max   0.983
_shelx_res_checksum              52213