Axial 4,4',6,6'-tetrakis-trifluoromethyl-biphenyl-2,2'-diamine (TF-BIPHAM): resolution and applications in asymmetric hydrogenation.
Wang, Chun-Jiang; Gao, Feng; Liang, Gang; Organic letters 10 (2008) 4711–4714; doi:10.1021/ol8018677

data_1504909
_publ_section_title
;
 Axial 4,4',6,6'-tetrakis-trifluoromethyl-biphenyl-2,2'-diamine
 (TF-BIPHAM): resolution and applications in asymmetric hydrogenation.
;
_journal_issue                   21
_journal_name_full               'Organic letters'
_journal_page_first              4711
_journal_page_last               4714
_journal_paper_doi               10.1021/ol8018677
_journal_volume                  10
_journal_year                    2008
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C36 H36 F12 N2 O6 S2'
_chemical_formula_sum            'C36 H36 F12 N2 O6 S2'
_chemical_formula_weight         884.79
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   13.8439(5)
_cell_length_b                   14.6436(6)
_cell_length_c                   37.6480(14)
_cell_measurement_reflns_used    5627
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      23.67
_cell_measurement_theta_min      2.31
_cell_volume                     7632.2(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0935
_diffrn_reflns_av_sigmaI/netI    0.0831
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       44
_diffrn_reflns_limit_l_min       -45
_diffrn_reflns_number            30717
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.94
_exptl_absorpt_coefficient_mu    0.247
_exptl_absorpt_correction_T_max  0.933
_exptl_absorpt_correction_T_min  0.904
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.540
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3632
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.959
_refine_diff_density_min         -0.608
_refine_diff_density_rms         0.106
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.07(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.109
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1053
_refine_ls_number_reflns         13657
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.109
_refine_ls_R_factor_all          0.1067
_refine_ls_R_factor_gt           0.0886
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0081P)^2^+59.9189P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1961
_refine_ls_wR_factor_ref         0.1936
_reflns_number_gt                11145
_reflns_number_total             13657
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol8018677_si_001.cif
_cod_data_source_block           c
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1504909