Ambiphilicity of ring-expanded N-heterocyclic carbenes.
Vermersch, François; Wang, Victor T.; Abdellaoui, Mehdi; Jazzar, Rodolphe; Bertrand, Guy; Chemical science 15 (2024) 3707–3710; doi:10.1039/d3sc04543a

data_1570849
_publ_section_title
;
 Ambiphilicity of ring-expanded N-heterocyclic carbenes.
;
_journal_issue                   10
_journal_name_full               'Chemical science'
_journal_page_first              3707
_journal_page_last               3710
_journal_paper_doi               10.1039/d3sc04543a
_journal_volume                  15
_journal_year                    2024
_chemical_formula_moiety         'C30 H44 N2 Se, C6 H6'
_chemical_formula_sum            'C36 H50 N2 Se'
_chemical_formula_weight         589.74
_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_creation_date             2023-08-20
_audit_creation_method
;
Olex2 1.5
(compiled 2023.08.17 svn.r577a77a9 for OlexSys, GUI svn.r6817)
;
_audit_update_record
;
2023-08-29 deposited with the CCDC.	2024-01-19 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 116.049(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.9260(9)
_cell_length_b                   15.8347(8)
_cell_length_c                   14.3550(8)
_cell_measurement_reflns_used    9869
_cell_measurement_temperature    273.15
_cell_measurement_theta_max      25.35
_cell_measurement_theta_min      2.84
_cell_volume                     3252.4(3)
_computing_cell_refinement       'SAINT v8.40B (Bruker, 2019)'
_computing_data_collection       'APEX4 v2022.1-1 (Bruker, 2022)'
_computing_data_reduction        'SAINT v8.40B (Bruker, 2019)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_computing_structure_solution    'XT (Sheldrick, 2008)'
_diffrn_ambient_temperature      273.15
_diffrn_detector                 'Bruker Photon III Area Detector'
_diffrn_detector_area_resol_mean 7.407
_diffrn_detector_type            'CPAD Area Detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'Fixed Chi Three-Circle Diffractometer'
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'Double Bounce Multilayer Mirrors'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_xray_symbol    K-L~3~
_diffrn_reflns_av_R_equivalents  0.0917
_diffrn_reflns_av_unetI/netI     0.0401
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            70350
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.379
_diffrn_reflns_theta_min         2.838
_diffrn_source                   'Micro Focus Rotating Anode'
_diffrn_source_current           50.0
_diffrn_source_power             2.5
_diffrn_source_type              'Bruker TXS'
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.180
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.5684
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1796 before and 0.0953 after correction.
The Ratio of minimum to maximum transmission is 0.7627.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.204
_exptl_crystal_description       block
_exptl_crystal_F_000             1256
_exptl_crystal_size_max          0.03
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.416
_refine_diff_density_min         -0.490
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     360
_refine_ls_number_reflns         5970
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0425
_refine_ls_R_factor_gt           0.0320
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0317P)^2^+2.1860P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0768
_refine_ls_wR_factor_ref         0.0824
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4969
_reflns_number_total             5970
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3sc04543a2.cif
_cod_data_source_block           4a
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_diffrn_radiation_probe' value 'X-ray' was changed to
'x-ray' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 8170 2020-07-09 18:12:32Z antanas 

 Adding full bibliography for 1570844--1570850.cif.
;
_cod_database_code               1570849
_shelx_shelxl_version_number     2019/1
_shelx_estimated_absorpt_t_max   0.988
_shelx_estimated_absorpt_t_min   0.965
_olex2_refinement_description
;
1.a Ternary CH refined with riding coordinates:
 C13(H13), C16(H16), C25(H25), C28(H28)
1.b Secondary CH2 refined with riding coordinates:
 C2(H2A,H2B), C3(H3A,H3B), C4(H4A,H4B), C5(H5A,H5B), C6(H6A,H6B)
1.c Aromatic/amide H refined with riding coordinates:
 C9(H9), C10(H10), C11(H11), C21(H21), C22(H22), C23(H23), C1S(H1S), C2S(H2S),
 C3S(H3S), C4S(H4S), C5S(H5S), C6S(H6S)
1.d Idealised Me refined as rotating group:
 C14(H14A,H14B,H14C), C15(H15A,H15B,H15C), C17(H17A,H17B,H17C), C18(H18A,H18B,
 H18C), C26(H26A,H26B,H26C), C27(H27A,H27B,H27C), C29(H29B,H29A,H29C), C30(H30A,
 H30B,H30C)
;
_shelx_res_checksum              99965
_shelx_hkl_checksum              58217
_olex2_submission_special_instructions 'No special instructions were received'