Catalyst-free direct C-H selenoxylation of (hetero)arenes
Yue, Yi kun; Zhang, Yixin; Li, Weijie; Lu, Zhande; Jin, Yiyang; Hu, Botao; Yang, Lu; New Journal of Chemistry  (2026) –; doi:10.1039/D6NJ00684A

data_7064357
_publ_section_title
;
 Catalyst-free direct C--H selenoxylation of (hetero)arenes
;
_journal_issue                   15
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              6243
_journal_page_last               6247
_journal_paper_doi               10.1039/D6NJ00684A
_journal_volume                  50
_journal_year                    2026
_chemical_formula_moiety         'C15 H12 I N O Se'
_chemical_formula_sum            'C15 H12 I N O Se'
_chemical_formula_weight         428.12
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2024-01-09
_audit_creation_method
;
Olex2 1.5-beta
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6439)
;
_audit_update_record
;
2024-03-12 deposited with the CCDC.	2026-03-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 110.984(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.21500(17)
_cell_length_b                   18.6047(3)
_cell_length_c                   10.31540(18)
_cell_measurement_reflns_used    6868
_cell_measurement_temperature    295.53(10)
_cell_measurement_theta_max      72.6000
_cell_measurement_theta_min      5.1610
_cell_volume                     1472.02(5)
_computing_cell_refinement       'CrysAlisPro 1.171.43.95a (Rigaku OD, 2023)'
_computing_data_collection
'CrysAlisPro system (CCD 43.95a 64-bit (release 03-11-2023))'
_computing_data_reduction        'CrysAlisPro 1.171.43.95a (Rigaku OD, 2023)'
_computing_molecular_graphics    'Olex2 1.5-beta (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5-beta (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS  (Sheldrick, 2008)'
_diffrn_ambient_environment      air
_diffrn_ambient_temperature      295.53(10)
_diffrn_detector                 'Hybrid Pixel Array Detector'
_diffrn_detector_area_resol_mean 10.0000
_diffrn_detector_type            HyPix
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -59.00 -33.00   0.50    0.32    -- -103.75  61.00 150.00   52
  2  \w    -61.00 -34.00   0.50    0.32    -- -103.75  61.00 120.00   54
  3  \w   -106.00 -77.00   0.50    0.32    -- -103.75  77.00 -30.00   58
  4  \w    -64.00 -26.00   0.50    0.32    -- -103.75  77.00 -30.00   76
  5  \w    -71.00 -29.00   0.50    0.32    -- -103.75  61.00 -90.00   84
  6  \w    -51.00 -23.00   0.50    0.32    -- -103.75  45.00-180.00   56
  7  \w    -51.00 -26.00   0.50    0.32    -- -103.75  45.00 -30.00   50
  8  \w    -48.00 -23.00   0.50    0.32    -- -103.75  45.00  60.00   50
  9  \w    -50.00 -24.00   0.50    0.32    -- -103.75  45.00 120.00   52
 10  \w    -51.00 -26.00   0.50    0.32    -- -103.75  45.00 150.00   50
 11  \w    -18.00  45.00   0.50    0.08    --  -37.45  19.00  30.00  126
 12  \w    -26.00  45.00   0.50    0.08    --  -37.45  19.00  90.00  142
 13  \w    -18.00  45.00   0.50    0.08    --  -37.45  19.00  30.00  126
 14  \w    -26.00  45.00   0.50    0.08    --  -37.45  19.00 -30.00  142
 15  \w    -26.00  45.00   0.50    0.08    --  -37.45  19.00-120.00  142
 16  \w    -86.00   2.00   0.50    0.08    --  -37.45 110.00 -44.00  176
 17  \w    -85.00 -24.00   0.50    0.32    -- -103.75 110.00 -44.00  122
 18  \w   -146.00 -79.00   0.50    0.32    -- -103.75-110.00-139.00  134
 19  \w   -177.00-133.00   0.50    0.32    -- -103.75 -61.00  60.00   88
 20  \w   -128.00 -75.00   0.50    0.32    -- -103.75 -61.00  60.00  106
 21  \w    -90.00 -65.00   0.50    0.32    -- -103.75 -77.00 150.00   50
 22  \w   -155.00-104.00   0.50    0.32    -- -103.75 -77.00 150.00  102
 23  \w     41.00  66.00   0.50    0.32    --  110.61 -61.00-120.00   50
 24  \w     69.00 101.00   0.50    0.32    --  110.61 -77.00-120.00   64
 25  \w     37.00  62.00   0.50    0.32    --  110.61 -77.00-120.00   50
 26  \w     30.00 111.00   0.50    0.32    --  110.61-110.00-139.00  162
 27  \w     30.00 111.00   0.50    0.32    --  110.61-110.00-139.00  162
 28  \w     20.00  90.00   0.50    0.08    --   37.45-110.00-139.00  140
 29  \w    100.00 178.00   0.50    0.32    --  110.61 110.00 -44.00  156
 30  \w    113.00 150.00   0.50    0.32    --  110.61 178.00 120.00   74
 31  \w     84.00 110.00   0.50    0.32    --  110.61 178.00 120.00   52
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Synergy, Dualflex, HyPix'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.1505481000
_diffrn_orient_matrix_UB_12      0.0028875000
_diffrn_orient_matrix_UB_13      0.0557833000
_diffrn_orient_matrix_UB_21      0.0330352000
_diffrn_orient_matrix_UB_22      0.0809031000
_diffrn_orient_matrix_UB_23      0.0296999000
_diffrn_orient_matrix_UB_31      -0.1288443000
_diffrn_orient_matrix_UB_32      0.0174421000
_diffrn_orient_matrix_UB_33      -0.1469036000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0847
_diffrn_reflns_av_unetI/netI     0.0658
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            9157
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        66.598
_diffrn_reflns_theta_max         66.598
_diffrn_reflns_theta_min         4.754
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'PhotonJet (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    19.846
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.06552
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.43.95a (Rigaku Oxford Diffraction, 2023)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.932
_exptl_crystal_description       block
_exptl_crystal_F_000             816
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.1
_refine_diff_density_max         1.102
_refine_diff_density_min         -1.073
_refine_diff_density_rms         0.372
_refine_ls_extinction_coef       0.0070(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.077
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     174
_refine_ls_number_reflns         2600
_refine_ls_number_restraints     143
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0811
_refine_ls_R_factor_gt           0.0798
_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^)+(0.1644P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1987
_refine_ls_wR_factor_ref         0.2014
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2467
_reflns_number_total             2600
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d6nj00684a2.cif
_cod_data_source_block           3163
_cod_depositor_comments          'Adding full bibliography for 7064357.cif.'
_cod_database_code               7064357
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         'C H N O Se'
_shelx_estimated_absorpt_t_max   0.242
_shelx_estimated_absorpt_t_min   0.168
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Rigid body (RIGU) restrains
 C7, I1, C3, C2, C4, C1, H2, H4, C5, C6, C8, H5, N1, Se1, C15, O1, C9, H7,
 H15A, H15B, H15C, C10, C14, H10, C11, C13, H14, H11, C12, H13, H12
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.007
3.a Aromatic/amide H refined with riding coordinates:
 C2(H2), C4(H4), C5(H5), C7(H7), C10(H10), C11(H11), C12(H12), C13(H13),
 C14(H14)
3.b Idealised Me refined as rotating group:
 C15(H15A,H15B,H15C)
;
_shelx_res_checksum              39881
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 8.469
_oxdiff_exptl_absorpt_empirical_full_min 0.403