Synthesis and characterization of coumarin-derived sulfur analogues using Lawesson's reagent.
Mama, Neliswa; Schoeman, Stiaan; Myburgh, Lisa; Hosten, Eric C.; Acta crystallographica. Section C, Structural chemistry 81 (2025) 170–180; doi:10.1107/S2053229625000956

data_2312779
_publ_section_title
;
 Synthesis and characterization of coumarin-derived sulfur analogues using
 Lawesson's reagent.
;
_journal_coeditor_code           EF3062
_journal_issue                   'Pt 3'
_journal_name_full
'Acta crystallographica. Section C, Structural chemistry'
_journal_page_first              170
_journal_page_last               180
_journal_paper_doi               10.1107/S2053229625000956
_journal_volume                  81
_journal_year                    2025
_chemical_absolute_configuration ad
_chemical_formula_iupac          'C13 H12 O3 S2'
_chemical_formula_moiety         'C13 H12 O3 S2'
_chemical_formula_sum            'C13 H12 O3 S2'
_chemical_formula_weight         280.35
_chemical_name_systematic
;
Ethyl 8-methoxy-2-sulfanylidene-2<i>H</i>-chromene-3-carbothioate
;
_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'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2019/3
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.9815(3)
_cell_length_b                   11.7185(4)
_cell_length_c                   15.9642(5)
_cell_measurement_reflns_used    9921
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      28.25
_cell_measurement_theta_min      2.55
_cell_volume                     1306.07(8)
_computing_cell_refinement
;
APEX2 (Bruker, 2012)
;
_computing_data_collection
;
APEX2 (Bruker, 2012)
;
_computing_data_reduction
;
SAINT (Bruker, 2012)
;
_computing_molecular_graphics
;
ORTEP-3 for Windows (Farrugia, 2012)
;
_computing_publication_material
;
PLATON (Spek, 2020) and Mercury (Macrae <i>et al.</i>,  2020)
;
_computing_structure_refinement
;
SHELXL2019 (Sheldrick, 2015b) and ShelXle (H\"ubschle <i>et al.</i>,
2011)
;
_computing_structure_solution
;
SHELXT2018 (Sheldrick, 2015a)
;
_diffrn_ambient_temperature      200(2)
_diffrn_detector                 'Bruker PHOTON II 7 CCD detector'
_diffrn_detector_area_resol_mean 7.3910
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'four-circle KAPPA diffractometer'
_diffrn_measurement_device_type  'Bruker D8 QUEST'
_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  0.0907
_diffrn_reflns_av_unetI/netI     0.0468
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            39191
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.253
_diffrn_reflns_theta_min         2.156
_diffrn_source                   'sealed x-ray tube'
_diffrn_source_current           1.4
_diffrn_source_power             70
_diffrn_source_voltage           50
_exptl_absorpt_coefficient_mu    0.404
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.5079
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
(SADABS; Krause <i>et al.</i>,  2015)
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.426
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             584
_exptl_crystal_size_max          0.478
_exptl_crystal_size_mid          0.152
_exptl_crystal_size_min          0.146
_refine_diff_density_max         0.664
_refine_diff_density_min         -0.426
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.28(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.237
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     166
_refine_ls_number_reflns         3236
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.237
_refine_ls_R_factor_all          0.0741
_refine_ls_R_factor_gt           0.0547
_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^)+(0.0590P)^2^+0.5127P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1176
_refine_ls_wR_factor_ref         0.1405
_reflns_number_gt                2716
_reflns_number_total             3236
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ef3062.cif
_cod_data_source_block           S3b
_cod_depositor_comments
'Adding full bibliography for 2312774--2312779.cif.'
_cod_database_code               2312779
_shelx_estimated_absorpt_t_min   0.830
_shelx_estimated_absorpt_t_max   0.943
_shelx_hkl_checksum              13707
_shelx_res_checksum              83745