Catalytic C-F bond activation of geminal difluorocyclopropanes by nickel(I) complexes via a radical mechanism
Jan Wenz; Christoph A. Rettenmeier; Hubert Wadepohl; Lutz H. Gade; Chem.Commun. 52 (2016) 202–; doi:10.1039/c5cc08950F

data_7118174
_publ_section_title
;
 Catalytic C-F bond activation of geminal difluorocyclopropanes by
 nickel(I) complexes via a radical mechanism
;
_journal_name_full               Chem.Commun.
_journal_page_first              202
_journal_paper_doi               10.1039/c5cc08950F
_journal_volume                  52
_journal_year                    2016
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C18 H26 F N3 Ni O2, 0.5(C7 H8), 0.5(H2 O)'
_chemical_formula_sum            'C21.5 H31 F N3 Ni O2.5'
_chemical_formula_weight         449.20
_chemical_properties_physical    air-sensitive
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_block_code                ga_jw1
_audit_creation_date             2014-07-25
_audit_update_record
;
2015-09-25 deposited with the CCDC.
2015-11-09 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   10.777(8)
_cell_length_b                   10.970(8)
_cell_length_c                   36.58(3)
_cell_measurement_reflns_used    7648
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.75
_cell_measurement_theta_min      2.19
_cell_volume                     4325(6)
_computing_cell_refinement
;
SAINT (see _computing_data_reduction). Includes estimated systematic errors
 of the unit cell constants from Monte Carlo simulations.
;
_computing_data_collection       'SMART-5.631 (Bruker AXS, 2003)'
_computing_data_reduction
'SAINT V8.34A (Bruker AXS, 1997-2013), SADABS-2014_2 (Sheldrick and Bruker AXS, 1997-2014)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material
'encif (Wadepohl, 2009-14); encifer 1.4 (CCDC, 2011)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_computing_structure_solution    'SUPERFLIP (Palatinus, 2007-2009)'
_diffrn_ambient_environment      'perfluoro polyether oil'
_diffrn_ambient_temperature      100(1)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.19
_diffrn_detector_type            CCD-PXL-KAF2
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.963
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker AXS Smart 1000'
_diffrn_measurement_method       '\f- and \w-scans'
_diffrn_measurement_specimen_support 'polyimid foil'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0455
_diffrn_reflns_av_unetI/netI     0.0351
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.963
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       53
_diffrn_reflns_limit_l_min       -53
_diffrn_reflns_number            110129
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.948
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         32.432
_diffrn_reflns_theta_min         1.113
_diffrn_source                   'sealed X-Ray tube (Mo)'
_diffrn_source_type              'fine focus tube'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.930
_exptl_absorpt_correction_T_max  0.8623
_exptl_absorpt_correction_T_min  0.7854
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements (Blessing 1995)
SADABS (see _computing_data_reduction)
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.380
_exptl_crystal_description       irregular
_exptl_crystal_F_000             1904
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.544
_refine_diff_density_min         -0.368
_refine_diff_density_rms         0.070
_refine_ls_abs_structure_details
;
 Flack x determined using 5642 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.011(3)
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     648
_refine_ls_number_reflns         14769
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0356
_refine_ls_R_factor_gt           0.0297
_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^)+(0.0338P)^2^+0.4639P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0640
_refine_ls_wR_factor_ref         0.0666
_reflns_Friedel_coverage         0.786
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.930
_reflns_number_gt                13565
_reflns_number_total             14769
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5cc08950f2.cif
_cod_data_source_block           ga_jw1
_cod_original_cell_volume        4325(5)
_cod_original_formula_sum        'C21.50 H31 F N3 Ni O2.50'
_cod_database_code               7118174
_audit_block_refno               2115
_audit_block_usercomment         JW16
_shelxl_version_number           2014-3
_shelx_estimated_absorpt_t_max   0.889
_shelx_estimated_absorpt_t_min   0.836
_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.a Idealised Me refined as rotating group with stretchable bonds:
 C14(H14A,H14B,H14C), C15(H15A,H15B,H15C), C17(H17A,H17B,H17C), C18(H18A,H18B,
 H18C), C64(H64A,H64B,H64C), C65(H65A,H65B,H65C), C67(H67A,H67B,H67C), C68(H68A,
 H68B,H68C), C87(H87A,H87B,H87C)
;
_shelx_res_checksum              7026
_olex2_submission_special_instructions 'No special instructions were received'