Dynamic optical activity induction in the N-alkyl-N'-trityl ureas and thioureas.
Prusinowska, Natalia; Czapik, Agnieszka; Wojciechowska, Martika; Kwit, Marcin; Organic & biomolecular chemistry 17 (2019) 7782–7793; doi:10.1039/c9ob01319a

data_7157005
_publ_section_title
;
 Dynamic optical activity induction in the N-alkyl-N'-trityl ureas and
 thioureas.
;
_journal_issue                   33
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              7782
_journal_page_last               7793
_journal_paper_doi               10.1039/c9ob01319a
_journal_volume                  17
_journal_year                    2019
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C28 H32 N2 S'
_chemical_formula_sum            'C28 H32 N2 S'
_chemical_formula_weight         428.61
_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_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2019-06-05 deposited with the CCDC.    2019-07-29 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.60290(7)
_cell_length_b                   10.57062(6)
_cell_length_c                   23.07870(13)
_cell_measurement_reflns_used    30888
_cell_measurement_temperature    130(2)
_cell_measurement_theta_max      75.4230
_cell_measurement_theta_min      3.7700
_cell_volume                     2342.69(3)
_computing_cell_refinement       'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      130(2)
_diffrn_detector_area_resol_mean 10.5357
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'SuperNova, Single source at offset, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0251
_diffrn_reflns_av_unetI/netI     0.0109
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            38687
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         72.080
_diffrn_reflns_theta_min         5.676
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    1.341
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.82983
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
'CrysAlisPro 1.171.38.46 (Rigaku Oxford Diffraction, 2015) 
Empirical absorption correction using spherical harmonics, 
implemented in SCALE3 ABSPACK scaling algorithm.'
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.215
_exptl_crystal_description       plate
_exptl_crystal_F_000             920
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.168
_refine_diff_density_min         -0.184
_refine_diff_density_rms         0.031
_refine_ls_abs_structure_details
;
 Flack x determined using 1946 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.001(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     281
_refine_ls_number_reflns         4605
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0232
_refine_ls_R_factor_gt           0.0231
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0389P)^2^+0.3327P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0637
_refine_ls_wR_factor_ref         0.0638
_reflns_Friedel_coverage         0.753
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.999
_reflns_number_gt                4574
_reflns_number_total             4605
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ob01319a3.cif
_cod_data_source_block           2d
_cod_depositor_comments
'Adding full bibliography for 7157000--7157010.cif.'
_cod_database_code               7157005
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.775
_shelx_estimated_absorpt_t_max   0.936
_shelx_res_checksum              10421