Design and synthesis of a novel three-hindered quadrant bisphosphine ligand and its application in asymmetric hydrogenation
Huang, Kexuan; Zhang, Xiaowei; Emge, Thomas J.; Hou, Guohua; Cao, Bonan; Zhang, Xumu; Chemical Communications (Cambridge, United Kingdom) 46 (2010) 8555–8557; doi:10.1039/c0cc02620d

data_7112825
_publ_section_title
;
 Design and synthesis of a novel three-hindered quadrant bisphosphine
 ligand and its application in asymmetric hydrogenation
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   45
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              8555
_journal_page_last               8557
_journal_paper_doi               10.1039/c0cc02620d
_journal_volume                  46
_journal_year                    2010
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C20 C40 P2 S, C H Cl3'
_chemical_formula_sum            'C21 H41 Cl3 P2 S'
_chemical_formula_weight         493.89
_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                   8.4109(5)
_cell_length_b                   15.8263(10)
_cell_length_c                   39.840(3)
_cell_measurement_reflns_used    9693
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.51
_cell_measurement_theta_min      2.74
_cell_volume                     5303.2(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0418
_diffrn_reflns_av_sigmaI/netI    0.0419
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       56
_diffrn_reflns_limit_l_min       -56
_diffrn_reflns_number            58982
_diffrn_reflns_theta_full        30.54
_diffrn_reflns_theta_max         30.54
_diffrn_reflns_theta_min         2.74
_exptl_absorpt_coefficient_mu    0.551
_exptl_absorpt_correction_T_max  0.947
_exptl_absorpt_correction_T_min  0.801
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SAINT (SADABS)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.237
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             2112
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.704
_refine_diff_density_min         -0.447
_refine_diff_density_rms         0.083
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.09(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.006
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     577
_refine_ls_number_reflns         16069
_refine_ls_number_restraints     363
_refine_ls_restrained_S_all      1.002
_refine_ls_R_factor_all          0.0651
_refine_ls_R_factor_gt           0.0593
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0520P)^2^+9.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1296
_refine_ls_wR_factor_ref         0.1324
_reflns_number_gt                14887
_reflns_number_total             16069
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7105685
_cod_data_source_file            c0cc02620d.txt
_cod_data_source_block           p_s_1a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        5303.3(6)
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7112825