Spontaneous resolution of chiral bis-sulfoxides with asymmetric atropisomerism
Xu, Zhiguang; Liu, Haiyang; Mahmood, Mian HR; Cai, Yuepeng; Xu, Xuan; Tang, Youwen; CrystEngComm 16 (2014) 3839–; doi:10.1039/c4ce00296b

data_7214429
_publ_section_title
;
 Spontaneous resolution of chiral bis-sulfoxides with asymmetric
 atropisomerism
;
_journal_issue                   19
_journal_name_full               CrystEngComm
_journal_page_first              3839
_journal_paper_doi               10.1039/c4ce00296b
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'C16 H26 O2 S2'
_chemical_formula_sum            'C16 H26 O2 S2'
_chemical_formula_weight         314.49
_chemical_name_systematic        1,3-bis((tert-butylsulfinyl)methyl)benzene
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 93.151(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.443(2)
_cell_length_b                   6.5577(11)
_cell_length_c                   21.666(3)
_cell_measurement_reflns_used    2250
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      23.35
_cell_measurement_theta_min      2.43
_cell_volume                     1765.2(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      298(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0281
_diffrn_reflns_av_sigmaI/netI    0.0332
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            8800
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         1.88
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.301
_exptl_absorpt_correction_T_max  0.9562
_exptl_absorpt_correction_T_min  0.9258
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.183
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.944
_refine_diff_density_min         -0.432
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     196
_refine_ls_number_reflns         3261
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0813
_refine_ls_R_factor_gt           0.0573
_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^)+(0.0762P)^2^+0.9899P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1502
_refine_ls_wR_factor_ref         0.1645
_reflns_number_gt                2311
_reflns_number_total             3261
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ce00296b2.cif
_cod_data_source_block           c
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7214429