A free boratriptycene-type Lewis superacid
Henkelmann, Marcel; Omlor, Andreas; Bolte, Michael; Schunemann, Volker; Lerner, Hans-Wolfram; Noga, Jozef; Hrobarik, Peter; Wagner, Matthias; Chemical Science  (2021) –; doi:10.1039/D1SC06404E

data_1565586
_publ_section_title
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 A free boratriptycene-type Lewis superacid
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_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/D1SC06404E
_journal_year                    2021
_chemical_formula_moiety         'C20 H24 B2 Fe N4'
_chemical_formula_sum            'C20 H24 B2 Fe N4'
_chemical_formula_weight         397.90
_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   mixed
_atom_sites_solution_primary     direct
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2021-11-03 deposited with the CCDC.	2021-12-06 downloaded from the CCDC.
;
_cell_angle_alpha                99.602(4)
_cell_angle_beta                 102.526(4)
_cell_angle_gamma                112.399(4)
_cell_formula_units_Z            2
_cell_length_a                   8.7000(5)
_cell_length_b                   9.4404(5)
_cell_length_c                   13.0630(7)
_cell_measurement_reflns_used    16925
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26.77
_cell_measurement_theta_min      3.33
_cell_volume                     930.61(10)
_computing_cell_refinement       'X-Area (Stoe & Cie, 2001)'
_computing_data_collection       'X-Area (Stoe & Cie, 2001)'
_computing_data_reduction        'X-Area (Stoe & Cie, 2001)'
_computing_molecular_graphics    'XP in SHELXTL-Plus (Sheldrick, 2008)'
_computing_publication_material  SHELXL
_computing_structure_refinement  'SHELXL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'STOE IPDS II two-circle-diffractometer'
_diffrn_measurement_method       \w
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0269
_diffrn_reflns_av_unetI/netI     0.0153
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            16925
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         26.388
_diffrn_reflns_theta_min         3.534
_diffrn_source                   'Genix 3D I\mS microfocus X-ray source'
_exptl_absorpt_coefficient_mu    0.822
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.618
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'X-Area (Stoe & Cie, 2001)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.420
_exptl_crystal_description       block
_exptl_crystal_F_000             416
_exptl_crystal_size_max          0.270
_exptl_crystal_size_mid          0.250
_exptl_crystal_size_min          0.240
_refine_diff_density_max         0.336
_refine_diff_density_min         -0.288
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.151
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     256
_refine_ls_number_reflns         3790
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.151
_refine_ls_R_factor_all          0.0348
_refine_ls_R_factor_gt           0.0338
_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^)+(0.0398P)^2^+0.6727P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0872
_refine_ls_wR_factor_ref         0.0879
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3706
_reflns_number_total             3790
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1sc06404e3.cif
_cod_data_source_block           wa2957
_cod_original_cell_volume        930.61(9)
_cod_database_code               1565586
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.808
_shelx_estimated_absorpt_t_max   0.827
_shelx_res_checksum              50907
_shelx_hkl_checksum              20645