Small cavitand macrocycles from direct C-C coupling of <i>s</i>-aryl tetrazine units.
Mboyi, Clève D; Sabbadin, Henri; Penouilh, Marie-José; Bonnin, Quentin; Amardeil, Régine; Cattey, Hélène; Fournier, Sophie; Devillers, Charles H.; Roger, Julien; Hierso, Jean-Cyrille; Chemical communications (Cambridge, England) 62 (2026) 6987–6991; doi:10.1039/d6cc00124f

data_7135591
_publ_section_title
;
 Small cavitand macrocycles from direct C-C coupling of <i>s</i>-aryl
 tetrazine units.
;
_journal_issue                   26
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              6987
_journal_page_last               6991
_journal_paper_doi               10.1039/d6cc00124f
_journal_volume                  62
_journal_year                    2026
_chemical_formula_moiety         'C28 H17 Br N8'
_chemical_formula_sum            'C28 H17 Br N8'
_chemical_formula_weight         545.40
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_update_record
;
2025-11-07 deposited with the CCDC.	2026-03-09 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 109.0940(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.6054(7)
_cell_length_b                   13.4378(7)
_cell_length_c                   15.1105(8)
_cell_measurement_reflns_used    9972
_cell_measurement_temperature    115
_cell_measurement_theta_max      26.98
_cell_measurement_theta_min      2.28
_cell_volume                     2418.7(2)
_computing_cell_refinement       'SAINT V8.40B (Bruker, 2016)'
_computing_data_collection       'APEX3 (Bruker, 2020)'
_computing_data_reduction        'SAINT V8.40B (Bruker, 2016)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      115
_diffrn_detector                 'CCD Plate'
_diffrn_detector_area_resol_mean '512 x 512'
_diffrn_detector_type            APEX2
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_collimation    '0.6 mm'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_xray_symbol    K-L~3~
_diffrn_reflns_av_R_equivalents  0.0495
_diffrn_reflns_av_unetI/netI     0.0324
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            51513
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.492
_diffrn_reflns_theta_min         2.806
_diffrn_source                   'X-ray tube'
_diffrn_source_current           5.0
_diffrn_source_power             0.1
_diffrn_source_target            Mo
_diffrn_source_type              'Siemens KFF Mo 2K-180'
_diffrn_source_voltage           20.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.735
_exptl_absorpt_correction_T_max  0.0949
_exptl_absorpt_correction_T_min  0.0667
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0510 before and 0.0445 after correction.
The Ratio of minimum to maximum transmission is 0.7028.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear light red'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.498
_exptl_crystal_description       prism
_exptl_crystal_F_000             1104
_exptl_crystal_recrystallization_method
'The material was recrystallised from a mixture of trichloromethane and heptane  by slow evaporation'
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.2
_refine_diff_density_max         1.642
_refine_diff_density_min         -0.455
_refine_diff_density_rms         0.085
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.136
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     334
_refine_ls_number_reflns         5543
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.136
_refine_ls_R_factor_all          0.0696
_refine_ls_R_factor_gt           0.0465
_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^)+(0.0391P)^2^+5.6299P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1128
_refine_ls_wR_factor_ref         0.1222
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4260
_reflns_number_total             5543
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d6cc00124f2.cif
_cod_data_source_block           Compound_4a_prime
_cod_depositor_comments
'Adding full bibliography for 7135589--7135593.cif.'
_cod_database_code               7135591
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.723
_shelx_estimated_absorpt_t_min   0.624
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C10(H10), C11(H11), C12(H12), C13(H13),
 C16(H16), C17(H17), C18(H18), C19(H19), C24(H24), C25(H25), C26(H26), C27(H27),
  C28(H28)
;
_shelx_res_checksum              1417
_shelx_hkl_checksum              61616
_olex2_diffrn_ambient_temperature_device 'Oxford Cryosystems'
_olex2_exptl_crystal_mounting_method
'The crystal was mounted on a mylar loop with oil'
_olex2_submission_special_instructions 'No special instructions were received'