Conformational Control of Chiral Amido-Thiourea Catalysts Enables Improved Activity and Enantioselectivity.
Lehnherr, Dan; Ford, David D.; Bendelsmith, Andrew J.; Kennedy, C. Rose; Jacobsen, Eric N.; Organic letters 18 (2016) 3214–3217; doi:10.1021/acs.orglett.6b01435

data_1543787
_publ_section_title
;
 Conformational Control of Chiral Amido-Thiourea Catalysts Enables
 Improved Activity and Enantioselectivity.
;
_journal_issue                   13
_journal_name_full               'Organic letters'
_journal_page_first              3214
_journal_page_last               3217
_journal_paper_doi               10.1021/acs.orglett.6b01435
_journal_volume                  18
_journal_year                    2016
_chemical_absolute_configuration ad
_chemical_formula_sum            'C26.25 H28.5 Cl0.5 F7 N3 O S'
_chemical_formula_weight         584.81
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 1'
_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                 122.1170(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.7969(5)
_cell_length_b                   12.4055(3)
_cell_length_c                   14.0366(3)
_cell_measurement_reflns_used    9889
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      65.4
_cell_measurement_theta_min      3.71
_cell_volume                     2919.70(12)
_computing_cell_refinement       'SAINT 7.46A (Bruker-AXS, 2009)'
_computing_data_collection       'APEX2 v2009.3.0 (Bruker-AXS, 2009)'
_computing_data_reduction        'SAINT 7.46A (Bruker-AXS, 2009)'
_computing_molecular_graphics    'Bruker SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'Bruker SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type
;
Bruker D8 goniometer with CCD area detector  
;
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'I\mS microfocus tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0403
_diffrn_reflns_av_sigmaI/netI    0.0240
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            30963
_diffrn_reflns_theta_full        65.83
_diffrn_reflns_theta_max         65.83
_diffrn_reflns_theta_min         3.72
_exptl_absorpt_coefficient_mu    2.025
_exptl_absorpt_correction_T_max  0.9606
_exptl_absorpt_correction_T_min  0.7120
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.330
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1210
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.045
_refine_diff_density_min         -0.514
_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   0.01(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     372
_refine_ls_number_reflns         4787
_refine_ls_number_restraints     26
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0617
_refine_ls_R_factor_gt           0.0588
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1258P)^2^+2.5424P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1695
_refine_ls_wR_factor_ref         0.1736
_reflns_number_gt                4526
_reflns_number_total             4787
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol6b01435_si_002.cif
_cod_data_source_block           DLH-346-2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/current/ACS/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 4268 2015-11-12 08:31:59Z antanas 
;
_cod_original_sg_symbol_Hall     c2y
_cod_original_sg_symbol_H-M      C2
_cod_original_formula_sum        'C26.25 H28.50 Cl0.50 F7 N3 O S'
_cod_database_code               1543787