Chiral carbene-borane adducts: precursors for borenium catalysts for asymmetric FLP hydrogenations.
Lam, Jolie; Günther, Benjamin A R; Farrell, Jeffrey M.; Eisenberger, Patrick; Bestvater, Brian P.; Newman, Paul D.; Melen, Rebecca L.; Crudden, Cathleen M.; Stephan, Douglas W.; Dalton transactions (Cambridge, England : 2003) 45 (2016) 15303–; doi:10.1039/c6dt02202b

data_7039633
_publ_section_title
;
 Chiral carbene-borane adducts: precursors for borenium catalysts for
 asymmetric FLP hydrogenations.
;
_journal_issue                   39
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              15303
_journal_paper_doi               10.1039/c6dt02202b
_journal_volume                  45
_journal_year                    2016
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C23 H21 B F10 N2'
_chemical_formula_sum            'C23 H21 B F10 N2'
_chemical_formula_weight         526.24
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_Int_Tables_number      19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_primary     iterative
_audit_creation_date             2016-04-28
_audit_creation_method
;
Olex2 1.2
(compiled 2016.02.19 svn.r3266 for OlexSys, GUI svn.r5155)
;
_audit_update_record
;
2016-05-26 deposited with the CCDC.
2016-06-23 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.8584(10)
_cell_length_b                   11.9181(10)
_cell_length_c                   16.5677(14)
_cell_measurement_reflns_used    9831
_cell_measurement_temperature    150
_cell_measurement_theta_max      27.20
_cell_measurement_theta_min      2.46
_cell_volume                     2341.5(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  'olex2.refine (Bourhis et al., 2015)'
_computing_structure_solution    'olex2.solve (Bourhis et al., 2015)'
_diffrn_ambient_temperature      150.02
_diffrn_measured_fraction_theta_full 1.0000
_diffrn_measured_fraction_theta_max 0.9974
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0309
_diffrn_reflns_av_unetI/netI     0.0169
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            39383
_diffrn_reflns_theta_full        26.0000
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.10
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.143
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.7013
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.0778 before and 0.0413 after correction.
The Ratio of minimum to maximum transmission is 0.9406.
The \l/2 correction factor is 0.00150.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.4926
_exptl_crystal_description       triangular
_exptl_crystal_F_000             1072.9402
_exptl_crystal_size_max          0.7
_exptl_crystal_size_mid          0.6
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.2186
_refine_diff_density_min         -0.1583
_refine_diff_density_rms         0.0352
_refine_ls_abs_structure_details
'Flack, H. D. (1983). Acta Cryst. A39, 876-881.'
_refine_ls_abs_structure_Flack   -0.0(3)
_refine_ls_d_res_high            0.7696
_refine_ls_d_res_low             9.6749
_refine_ls_goodness_of_fit_ref   1.0421
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_constraints    30
_refine_ls_number_parameters     329
_refine_ls_number_reflns         5384
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.0421
_refine_ls_R_factor_all          0.0317
_refine_ls_R_factor_gt           0.0284
_refine_ls_shift/su_max          0.0000
_refine_ls_shift/su_mean         0.0000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0448P)^2^+0.3272P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0756
_refine_ls_wR_factor_ref         0.0781
_reflns_Friedel_coverage         0.996
_reflns_limit_h_max              15
_reflns_limit_h_min              -15
_reflns_limit_k_max              15
_reflns_limit_k_min              -15
_reflns_limit_l_max              21
_reflns_limit_l_min              -21
_reflns_number_gt                4991
_reflns_number_total             5384
_reflns_threshold_expression     I>=2u(I)
_cod_data_source_file            c6dt02202b2.cif
_cod_data_source_block           BG004_0m
_cod_depositor_comments
'Adding full bibliography for 7039626--7039633.cif.'
_cod_original_sg_symbol_Hall     ' P 2ac 2ab'
_cod_database_code               7039633
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All B(H) groups, All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C16(H16), B1(H1)
2.b Secondary CH2 refined with riding coordinates:
 C1aa(H1aa,H1ab), C0aa(H0aa,H0ab)
2.c Idealised Me refined as rotating group:
 C18(H18a,H18b,H18c), C17(H17a,H17b,H17c), C19(H19a,H19b,H19c), C20(H20a,H20b,
 H20c), C21(H21a,H21b,H21c)
;
_olex2_submission_special_instructions 'No special instructions were received'