The serendipitous discovery of a readily available redox-bistable molecule derived from cyclic(alkyl)(amino)carbenes
Mahoney, Janell K.; Regnier, Vianney; Romero, Erik A.; Molton, Florian; Royal, Guy; Jazzar, Rodolphe; Martin, David; Bertrand, Guy; Organic Chemistry Frontiers 5 (2018) 2073–; doi:10.1039/C8QO00447A

data_1554352
_publ_section_title
;
 The serendipitous discovery of a readily available redox-bistable
 molecule derived from cyclic(alkyl)(amino)carbenes
;
_journal_issue                   13
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              2073
_journal_paper_doi               10.1039/C8QO00447A
_journal_volume                  5
_journal_year                    2018
_chemical_formula_moiety         'C56 H78 Fe N2 O2, 2(B F4)'
_chemical_formula_sum            'C56 H78 B2 F8 Fe N2 O2'
_chemical_formula_weight         1040.67
_chemical_properties_physical
Air-sensitive,Moisture-sensitive,Heat-sensitive,Light-sensitive
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2018-02-21
_audit_creation_method
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_audit_update_record
;
2018-02-21 deposited with the CCDC.
2018-05-21 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 95.299(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   21.6194(8)
_cell_length_b                   10.6383(4)
_cell_length_c                   26.8304(10)
_cell_measurement_reflns_used    6491
_cell_measurement_temperature    100
_cell_measurement_theta_max      26.061
_cell_measurement_theta_min      2.238
_cell_volume                     6144.4(4)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_collection       'APEX3 v2016.1-0 (Bruker, 2016)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100.0
_diffrn_detector_area_resol_mean 8.258
_diffrn_detector_type            'CCD Area Detector'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device       'Kappa Four-Circle Diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0468
_diffrn_reflns_av_unetI/netI     0.0407
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            27629
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.427
_diffrn_reflns_theta_min         1.524
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.307
_exptl_absorpt_correction_T_max  0.4908
_exptl_absorpt_correction_T_min  0.4497
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0831 before and 0.0487 after correction. The Ratio of minimum to maximum transmission is 0.9163. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            'clear red'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.125
_exptl_crystal_description       needle
_exptl_crystal_F_000             2208
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: CD3CN/Et2O'
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.473
_refine_diff_density_min         -0.381
_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     324
_refine_ls_number_reflns         6295
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0680
_refine_ls_R_factor_gt           0.0546
_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^)+(0.0319P)^2^+17.4260P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1126
_refine_ls_wR_factor_ref         0.1185
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5215
_reflns_number_total             6295
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8qo00447a2.cif
_cod_data_source_block           copy_sq
_cod_original_cell_volume        6144.5(4)
_cod_database_code               1554352
_shelx_shelxl_version_number     2016/6
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Uiso/Uaniso restraints and constraints
Uanis(F4) = Uanis(F4A) = Uanis(F2A) = Uanis(F2) = Uanis(F3A) = Uanis(F3) =
Uanis(F1A) = Uanis(F1)
3. Others
 Sof(F1A)=Sof(F2A)=Sof(F3A)=Sof(F4A)=1-FVAR(1)
 Sof(F1)=Sof(F2)=Sof(F3)=Sof(F4)=FVAR(1)
4.a Ternary CH refined with riding coordinates:
 C18(H18), C21(H21)
4.b Secondary CH2 refined with riding coordinates:
 C4(H4A,H4B), C8(H8A,H8B), C10(H10A,H10B)
4.c Aromatic/amide H refined with riding coordinates:
 C14(H14), C15(H15), C16(H16), C25(H25), C26(H26), C27(H27), C28(H28)
4.d Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C), C7(H7A,H7B,H7C), C9(H9A,H9B,H9C), C11(H11A,H11B,H11C),
 C19(H19A,H19B,H19C), C20(H20A,H20B,H20C), C22(H22A,H22B,H22C), C23(H23A,H23B,
 H23C)
;
_shelx_res_checksum              98130
_shelx_hkl_checksum              89852
_shelx_fab_checksum              19290
_olex2_submission_special_instructions 'No special instructions were received'