Solution-Phase Synthesis of a Base-Free Benzoborirene and a Three-Dimensional Inorganic Analogue.
Zhang, Hui; Wang, Junyi; Yang, Weiguang; Xiang, Libo; Sun, Weicheng; Ming, Wenbo; Li, Yinxin; Lin, Zhenyang; Ye, Qing; Journal of the American Chemical Society  (2020) –; doi:10.1021/jacs.0c06538

data_4135261
_publ_section_title
;
 Solution-Phase Synthesis of a Base-Free Benzoborirene and a
 Three-Dimensional Inorganic Analogue.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.0c06538
_journal_year                    2020
_chemical_formula_moiety         'C23 H42 B N3 Si2'
_chemical_formula_sum            'C23 H42 B N3 Si2'
_chemical_formula_weight         427.58
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2019-12-07
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                91.440(2)
_cell_angle_beta                 98.925(2)
_cell_angle_gamma                99.721(2)
_cell_formula_units_Z            2
_cell_length_a                   9.6320(5)
_cell_length_b                   10.2599(6)
_cell_length_c                   13.7887(7)
_cell_measurement_reflns_used    6869
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.31
_cell_measurement_theta_min      2.45
_cell_volume                     1324.97(12)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.01
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0410
_diffrn_reflns_av_unetI/netI     0.0548
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            17835
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.343
_diffrn_reflns_theta_min         2.432
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.147
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.072
_exptl_crystal_description       block
_exptl_crystal_F_000             468
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.358
_refine_diff_density_min         -0.264
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     274
_refine_ls_number_reflns         6562
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0612
_refine_ls_R_factor_gt           0.0427
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0368P)^2^+0.5318P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0951
_refine_ls_wR_factor_ref         0.1050
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5104
_reflns_number_total             6562
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja0c06538_si_002.cif
_cod_data_source_block           9
_cod_database_code               4135261
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.985
_shelx_estimated_absorpt_t_min   0.971
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C2(H2), C20(H20)
2.b Aromatic/amide H refined with riding coordinates:
 C10(H10), C11(H11), C12(H12), C13(H13)
2.c Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C7(H7A,H7B,H7C), C8(H8A,H8B,H8C), C9(H9A,H9B,H9C), C14(H14A,
 H14B,H14C), C15(H15A,H15B,H15C), C16(H16A,H16B,H16C), C18(H18A,H18B,H18C),
 C21(H21A,H21B,H21C), C22(H22A,H22B,H22C), C23(H23A,H23B,H23C), C24(H24A,H24B,
 H24C)
;
_shelx_res_checksum              65914
_shelx_hkl_checksum              9957
_olex2_submission_special_instructions 'No special instructions were received'