Brønsted acid-promoted C-F bond activation in [P,S]-ligated neutral and anionic perfluoronickelacyclopentanes.
Giffin, Kaitie A.; Korobkov, Ilia; Baker, R. Tom; Dalton transactions (Cambridge, England : 2003) 44 (2015) 19587–19596; doi:10.1039/c5dt02912k

data_7036658
_publ_section_title
;
 Br\/onsted acid-promoted C-F bond activation in [P,S]-ligated neutral and
 anionic perfluoronickelacyclopentanes.
;
_journal_issue                   45
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              19587
_journal_page_last               19596
_journal_paper_doi               10.1039/c5dt02912k
_journal_volume                  44
_journal_year                    2015
_chemical_formula_sum            'C14 H10 F8 N2 Ni'
_chemical_formula_weight         416.95
_chemical_name_systematic        '(pyr)2Ni(C4F8) '
_space_group_crystal_system      tetragonal
_space_group_IT_number           96
_space_group_name_Hall           'P 4nw 2abw'
_space_group_name_H-M_alt        'P 43 21 2'
_symmetry_space_group_name_Hall  'P 4nw 2abw'
_symmetry_space_group_name_H-M   'P 43 21 2'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2015-07-22 deposited with the CCDC.
2015-09-15 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.3161(13)
_cell_length_b                   10.3161(13)
_cell_length_c                   15.584(2)
_cell_measurement_reflns_used    5838
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      26.95
_cell_measurement_theta_min      2.37
_cell_volume                     1658.5(4)
_computing_cell_refinement       'APEX II, Bruker (2009)'
_computing_data_collection       'APEX II, Bruker (2009)'
_computing_data_reduction        'XPREP, Bruker (2009)'
_computing_molecular_graphics    'SHELXTL, Bruker (2004)'
_computing_publication_material  'SHELXTL, Bruker (2004)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-03 (Sheldrick, 2003)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0567
_diffrn_reflns_av_unetI/netI     0.0370
_diffrn_reflns_laue_measured_fraction_full 0.998
_diffrn_reflns_laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            16640
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.268
_diffrn_reflns_theta_min         2.368
_exptl_absorpt_coefficient_mu    1.251
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.5419
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker (2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.670
_exptl_crystal_density_meas      ?
_exptl_crystal_description       needle
_exptl_crystal_F_000             832
_exptl_crystal_size_max          0.160
_exptl_crystal_size_mid          0.030
_exptl_crystal_size_min          0.010
_refine_diff_density_max         0.390
_refine_diff_density_min         -0.393
_refine_diff_density_rms         0.052
_refine_ls_abs_structure_details
; 
 Flack x determined using 548 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.036(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.993
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     114
_refine_ls_number_reflns         2061
_refine_ls_number_restraints     45
_refine_ls_restrained_S_all      0.995
_refine_ls_R_factor_all          0.0523
_refine_ls_R_factor_gt           0.0313
_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^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0670
_refine_ls_wR_factor_ref         0.0747
_reflns_Friedel_coverage         0.651
_reflns_friedel_fraction_full    0.995
_reflns_friedel_fraction_max     0.993
_reflns_number_gt                1589
_reflns_number_total             2061
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5dt02912k2.cif
_cod_data_source_block           tb178
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'n/a' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 7036657--7036663.cif.
;
_cod_original_cell_volume        1658.5(5)
_cod_database_code               7036658
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.825
_shelx_estimated_absorpt_t_max   0.988
_shelx_res_checksum              12755