Difuryl(supermesityl)borane: a versatile building block for extended π-conjugated materials.
Riensch, Nicolas A.; Fritze, Lars; Schindler, Tobias; Kremer, Marius; Helten, Holger; Dalton transactions (Cambridge, England : 2003) 47 (2018) 10399–10403; doi:10.1039/c8dt01716f

data_7046393
_publ_section_title
;
 Difuryl(supermesityl)borane: a versatile building block for extended
 \p-conjugated materials.
;
_journal_issue                   31
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              10399
_journal_page_last               10403
_journal_paper_doi               10.1039/c8dt01716f
_journal_volume                  47
_journal_year                    2018
_chemical_formula_moiety         'C26 H33 B Br2 O2'
_chemical_formula_sum            'C26 H33 B Br2 O2'
_chemical_formula_weight         548.15
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2018-04-24
_audit_creation_method
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_audit_update_record
;
2018-04-29 deposited with the CCDC.
2018-05-18 downloaded from the CCDC.
;
_cell_angle_alpha                71.643(2)
_cell_angle_beta                 86.345(2)
_cell_angle_gamma                78.848(2)
_cell_formula_units_Z            2
_cell_length_a                   9.0914(12)
_cell_length_b                   10.6006(14)
_cell_length_c                   14.3655(18)
_cell_measurement_reflns_used    4676
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.66
_cell_measurement_theta_min      2.28
_cell_volume                     1289.2(3)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_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    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.901
_diffrn_measurement_device_type  'Bruker APEX CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  'multilayer optics'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0463
_diffrn_reflns_av_unetI/netI     0.0590
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.901
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            20064
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.901
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         31.160
_diffrn_reflns_theta_min         2.059
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.163
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.3691
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.1344 before and 0.0644 after correction.
The Ratio of minimum to maximum transmission is 0.4947.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.412
_exptl_crystal_description       plate
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.7
_exptl_crystal_size_mid          0.6
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.967
_refine_diff_density_min         -0.715
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         7513
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0531
_refine_ls_R_factor_gt           0.0393
_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^)+(0.0420P)^2^+0.1840P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0944
_refine_ls_wR_factor_ref         0.1002
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6010
_reflns_number_total             7513
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt01716f2.cif
_cod_data_source_block           m18_a03sad
_cod_depositor_comments
'Adding full bibliography for 7046393--7046395.cif.'
_cod_database_code               7046393
_shelx_shelxl_version_number     2018/1
_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 Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C6(H6), C7(H7), C11(H11), C13(H13)
2.b Idealised Me refined as rotating group:
 C16(H16A,H16B,H16C), C17(H17A,H17B,H17C), C18(H18A,H18B,H18C), C20(H20A,H20B,
 H20C), C21(H21A,H21B,H21C), C22(H22A,H22B,H22C), C24(H24A,H24B,H24C), C25(H25A,
 H25B,H25C), C26(H26A,H26B,H26C)
;
_shelx_res_checksum              84420
_olex2_submission_special_instructions 'No special instructions were received'