Pyridinium 1,4-Zwitterionic Thiolates as a useful Class of Sulfur-containing Synthons: Application to the Synthesis of 2,5-Dihydro-1,4,5-thiadiazepines
Cheng, Bin; Li, Yuntong; Wang, Taimin; Zhang, Xinping; Li, Hui; Li, Yun; Zhai, HB; Chemical Communications  (2019) –; doi:10.1039/C9CC08326J

data_7124454
_publ_section_title
;
 Pyridinium 1,4-Zwitterionic Thiolates as a useful Class of
 Sulfur-containing Synthons: Application to the Synthesis of
 2,5-Dihydro-1,4,5-thiadiazepines
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC08326J
_journal_year                    2019
_chemical_formula_moiety         'C16 H16 N2 O5 S'
_chemical_formula_sum            'C16 H16 N2 O5 S'
_chemical_formula_weight         348.37
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2018-12-17
_audit_creation_method
;
Olex2 1.2
(compiled 2017.03.28 svn.r3405 for OlexSys, GUI svn.r5337)
;
_audit_update_record
;
2018-12-17 deposited with the CCDC.	2019-11-05 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   9.5967(8)
_cell_length_b                   14.6083(12)
_cell_length_c                   24.1283(19)
_cell_measurement_reflns_used    6716
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.708
_cell_measurement_theta_min      2.676
_cell_volume                     3382.6(5)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'XS (Sheldrick, 2008)'
_diffrn_ambient_temperature      296.15
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0283
_diffrn_reflns_av_unetI/netI     0.0227
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            17493
_diffrn_reflns_theta_full        26.01
_diffrn_reflns_theta_max         26.01
_diffrn_reflns_theta_min         1.69
_diffrn_source                   'fine-focus sealed tube'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.219
_exptl_absorpt_correction_T_max  0.7459
_exptl_absorpt_correction_T_min  0.6722
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2008/1 (Bruker,2008) was used for absorption correction. wR2(int) was 0.1142 before and 0.0463 after correction. The Ratio of minimum to maximum transmission is 0.9012. The \l/2 correction factor is 0.0015.'
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.368
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1456
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.246
_refine_diff_density_min         -0.263
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     220
_refine_ls_number_reflns         3319
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0430
_refine_ls_R_factor_gt           0.0346
_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^)+(0.0446P)^2^+1.3264P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0895
_refine_ls_wR_factor_ref         0.0960
_reflns_number_gt                2779
_reflns_number_total             3319
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c9cc08326j2.cif
_cod_data_source_block           12
_cod_database_code               7124454
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C8(H8A,H8B)
2.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C6(H6)
2.c Idealised Me refined as rotating group:
 C12(H12A,H12B,H12C), C14(H14A,H14B,H14C), C16(H16A,H16B,H16C)
;
_olex2_submission_special_instructions 'No special instructions were received'