Crystal structures of four chiral imine-substituted thiophene derivatives
Hernández-Téllez, Guadalupe; Bernès, Sylvain; Mendoza, Angel; Ríos-Merino, Francisco Javier; Moreno, Gloria E.; Portillo, Oscar; Gutiérrez, René; Acta Crystallographica Section E 72 (2016) 350–354; doi:10.1107/S2056989016002516

data_2241561
_publ_section_title
;
 Crystal structures of four chiral imine-substituted thiophene derivatives
;
_journal_coeditor_code           SJ5495
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              350
_journal_page_last               354
_journal_paper_doi               10.1107/S2056989016002516
_journal_volume                  72
_journal_year                    2016
_chemical_formula_iupac          'C22 H20 F2 N2 S'
_chemical_formula_moiety         'C22 H20 F2 N2 S'
_chemical_formula_sum            'C22 H20 F2 N2 S'
_chemical_formula_weight         382.46
_chemical_melting_point          420
_chemical_name_systematic
;
2,5-Bis{[(<i>R</i>)-(-)-1-(4-fluorophenyl)ethyl]iminomethyl}thiophene
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           18
_space_group_name_Hall           'P 2 2ab'
_space_group_name_H-M_alt        'P 21 21 2'
_symmetry_space_group_name_Hall  'P 2 2ab'
_symmetry_space_group_name_H-M   'P 21 21 2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   21.1153(16)
_cell_length_b                   7.7846(6)
_cell_length_c                   6.1343(5)
_cell_measurement_reflns_used    2744
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      23.1870
_cell_measurement_theta_min      3.8190
_cell_volume                     1008.32(14)
_computing_cell_refinement
;
CrysAlis PRO (Agilent, 2013)
;
_computing_data_collection
;
CrysAlis PRO (Agilent, 2013)
;
_computing_data_reduction
;
CrysAlis PRO (Agilent, 2013)
;
_computing_molecular_graphics
;
Mercury (Macrae <i>et al.</i>,  2008)
;
_computing_publication_material
;
SHELXL2014 (Sheldrick, 2015b)
;
_computing_structure_refinement
;
SHELXL2014 (Sheldrick, 2015b)
;
_computing_structure_solution
;
SHELXT (Sheldrick, 2015a)
;
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean 10.5564
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Agilent Xcalibur (Atlas, Gemini)'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0578
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            12336
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.368
_diffrn_reflns_theta_min         3.842
_exptl_absorpt_coefficient_mu    0.186
_exptl_absorpt_correction_T_max  0.958
_exptl_absorpt_correction_T_min  0.904
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro, (Agilent, 2013)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.260
_exptl_crystal_description       prism
_exptl_crystal_F_000             400
_exptl_crystal_size_max          0.8923
_exptl_crystal_size_mid          0.4743
_exptl_crystal_size_min          0.3253
_refine_diff_density_max         0.149
_refine_diff_density_min         -0.249
_refine_ls_abs_structure_details
;
Flack <i>x</i> determined using 518 quotients
[(<i>I</i>^+^)-(<i>I</i>^-^)]/[(<i>I</i>^+^)+(<i>I</i>^-^)]
(Parsons <i>et al.</i>,  2013)
;
_refine_ls_abs_structure_Flack   0.07(6)
_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     124
_refine_ls_number_reflns         2067
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0704
_refine_ls_R_factor_gt           0.0439
_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^)+(0.0384P)^2^+0.0613P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0820
_refine_ls_wR_factor_ref         0.0918
_reflns_number_gt                1591
_reflns_number_total             2067
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            sj5495sup1.cif
_cod_data_source_block           III
_cod_database_code               2241561
_cod_database_fobs_code          2241561
_shelx_hkl_checksum              56706
_shelx_res_checksum              63132