Chiral Cyclohexyl-Fused Spirobiindanes: Practical Synthesis, Ligand Development, and Asymmetric Catalysis.
Zheng, Zhiyao; Cao, Yuxi; Chong, Qinglei; Han, Zhaobin; Ding, Jiaming; Luo, Chenguang; Wang, Zheng; Zhu, Dongsheng; Zhou, Qi-Lin; Ding, Kuiling; Journal of the American Chemical Society 140 (2018) 10374–10381; doi:10.1021/jacs.8b07125

data_4132884
_publ_section_title
;
 Chiral Cyclohexyl-Fused Spirobiindanes: Practical Synthesis, Ligand
 Development, and Asymmetric Catalysis.
;
_journal_issue                   32
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10374
_journal_page_last               10381
_journal_paper_doi               10.1021/jacs.8b07125
_journal_volume                  140
_journal_year                    2018
_chemical_absolute_configuration ad
_chemical_formula_sum            'C54 H64 B Cl4 F4 N2 O4 P2 Rh'
_chemical_formula_weight         1198.53
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 92.787(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   12.2182(11)
_cell_length_b                   18.0171(17)
_cell_length_c                   12.2970(12)
_cell_measurement_reflns_used    3561
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      42.165
_cell_measurement_theta_min      4.589
_cell_volume                     2703.8(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0435
_diffrn_reflns_av_unetI/netI     0.0607
_diffrn_reflns_Laue_measured_fraction_full 0.974
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            15043
_diffrn_reflns_point_group_measured_fraction_full 0.736
_diffrn_reflns_point_group_measured_fraction_max 0.756
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         24.998
_diffrn_reflns_theta_min         1.669
_exptl_absorpt_coefficient_mu    0.634
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6421
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.472
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             1236
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.170
_exptl_crystal_size_min          0.120
_refine_diff_density_max         0.874
_refine_diff_density_min         -0.521
_refine_diff_density_rms         0.086
_refine_ls_abs_structure_details
; 
 Flack x determined using 1849 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons and Flack (2004), Acta Cryst. A60, s61). 
;
_refine_ls_abs_structure_Flack   0.03(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     653
_refine_ls_number_reflns         7201
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0565
_refine_ls_R_factor_gt           0.0509
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0777P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1217
_refine_ls_wR_factor_ref         0.1254
_reflns_Friedel_coverage         0.461
_reflns_Friedel_fraction_full    0.481
_reflns_Friedel_fraction_max     0.494
_reflns_number_gt                6519
_reflns_number_total             7201
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja8b07125_si_009.cif
_cod_data_source_block           cd17171
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4132884
_shelx_estimated_absorpt_t_min   0.884
_shelx_estimated_absorpt_t_max   0.928
_shelxl_version_number           2013-4
_shelx_res_checksum              29471
_shelx_hkl_checksum              59363