3-Fluoropyridyl nickel complexes as useful tools for the selective synthesis of new 2,4,5,6-tetrafluoropyridines: a route complementing the established methods to access fluorinated pyridines
Sladek, Marianna I.; Braun, Thomas; Neumann, Beate; Stammler, Hans-Georg; New Journal of Chemistry 27 (2003) 313–; doi:10.1039/b207943g

data_7050443
_publ_section_title
;
 3-Fluoropyridyl nickel complexes as useful tools for the selective
 synthesis of new 2,4,5,6-tetrafluoropyridines: a route complementing
 the established methods to access fluorinated pyridines
;
_journal_issue                   2
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              313
_journal_paper_doi               10.1039/b207943g
_journal_volume                  27
_journal_year                    2003
_chemical_formula_moiety         'C18 H33 F4 N Ni P2'
_chemical_formula_sum            'C18 H33 F4 N Ni P2'
_chemical_formula_weight         460.10
_chemical_name_systematic        ?
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.000
_cell_angle_beta                 90.000
_cell_angle_gamma                90.000
_cell_formula_units_Z            4
_cell_length_a                   23.4610(3)
_cell_length_b                   8.7220(4)
_cell_length_c                   10.8680(9)
_cell_measurement_temperature    173(2)
_cell_volume                     2223.9(2)
_computing_data_collection       'KappaCCD '
_computing_data_reduction
'EVALCCD (Duisenberg, 1998, Thesis. Utrecht Un'
_computing_molecular_graphics    'SHELXTL-PLUS (1990)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD; rotation images; fine slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0290
_diffrn_reflns_av_sigmaI/netI    0.0376
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            18038
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         3.12
_exptl_absorpt_coefficient_mu    1.051
_exptl_absorpt_correction_T_max  0.830
_exptl_absorpt_correction_T_min  0.726
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
multi-scan from symmetry-related measurements 
Sortav (Blessing 1995) 
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.374
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             968
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.898
_refine_diff_density_min         -0.701
_refine_diff_density_rms         0.125
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.019(11)
_refine_ls_extinction_coef       0.0006(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.087
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     243
_refine_ls_number_reflns         6029
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.087
_refine_ls_R_factor_all          0.0521
_refine_ls_R_factor_gt           0.0337
_refine_ls_shift/su_max          0.033
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
calc w=1/[\s^2^(Fo^2^)+(0.0353P)^2^+1.1748P] where 
P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0762
_refine_ls_wR_factor_ref         0.0846
_reflns_number_gt                5201
_reflns_number_total             6029
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b207943g.txt
_cod_data_source_block           compound3
_cod_depositor_comments
;
The following automatic conversions were performed:
'_atom_site_symetry_multiplicity' tag replaced with
'_atom_site_symmetry_multiplicity'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_database_code               7050443