A bis-NHC–CAAC dimer derived dicationic diradical
Nayak, Mithilesh Kumar; Sarkar, Pallavi; Elvers, Benedict J.; Mehta, Sakshi; Zhang, Fangyuan; Chrysochos, Nicolas; Krummenacher, Ivo; Vijayakanth, Thangavel; Narayanan, Ramakirushnan Suriya; Dolai, Ramapada; Roy, Biswarup; Malik, Vishal; Rawat, Hemant; Mondal, Abhishake; Boomishankar, Ramamoorthy; Pati, Swapan K.; Braunschweig, Holger; Schulzke, Carola; Ravat, Prince; Jana, Anukul; Chemical Science 13 (2022) 12533–12539; doi:10.1039/D2SC03937K

data_1567807
_publ_section_title
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 A bis-NHC--CAAC dimer derived dicationic diradical
;
_journal_issue                   42
_journal_name_full               'Chemical Science'
_journal_page_first              12533
_journal_page_last               12539
_journal_paper_doi               10.1039/D2SC03937K
_journal_volume                  13
_journal_year                    2022
_chemical_formula_moiety         'C32 H56 N6'
_chemical_formula_sum            'C32 H56 N6'
_chemical_formula_weight         524.82
_space_group_crystal_system      monoclinic
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_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     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2021-02-21 deposited with the CCDC.	2022-09-21 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 107.697(6)
_cell_angle_gamma                90
_cell_formula_units_Z            2
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_cell_length_b                   18.1921(10)
_cell_length_c                   11.2323(7)
_cell_measurement_reflns_used    4203
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      28.5510
_cell_measurement_theta_min      2.9040
_cell_volume                     1548.94(16)
_computing_cell_refinement       'CrysAlisPro 1.171.39.29d (Rigaku OD, 2017)'
_computing_data_collection       'CrysAlisPro 1.171.39.29d (Rigaku OD, 2017)'
_computing_data_reduction        'CrysAlisPro 1.171.39.29d (Rigaku OD, 2017)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'CIFTAB (Sheldrick, 2015)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'XtaLAB AFC12 (RINC): Kappa single'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0332
_diffrn_reflns_av_unetI/netI     0.0358
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
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_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -14
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_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.363
_diffrn_reflns_theta_min         2.781
_diffrn_source                   'fine-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.067
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.75027
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.29d (Rigaku Oxford Diffraction, 2017)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.125
_exptl_crystal_description       block
_exptl_crystal_F_000             580
_exptl_crystal_size_max          0.316
_exptl_crystal_size_mid          0.142
_exptl_crystal_size_min          0.127
_refine_diff_density_max         0.233
_refine_diff_density_min         -0.200
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     180
_refine_ls_number_reflns         3153
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0611
_refine_ls_R_factor_gt           0.0473
_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^)+(0.0405P)^2^+0.8136P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1096
_refine_ls_wR_factor_ref         0.1146
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2537
_reflns_number_total             3153
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2sc03937k2.cif
_cod_data_source_block           AJ0381
_cod_depositor_comments
'Adding full bibliography for 1567803--1567816.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1567807
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.979
_shelx_estimated_absorpt_t_max   0.992
_shelx_res_checksum              25603
_shelx_hkl_checksum              17684