Selective Dimerization/Oligomerization of α-Olefins by Cobalt Bis(imino)pyridine Catalysts Stabilized by Trifluoromethyl Substituents: Group 9 Metal Catalysts with Productivities Matching Those of Iron Systems
Kilian P. Tellmann; Vernon C. Gibson; Andrew J. P. White; David J. Williams; Organometallics 24 (2005) 280–286; doi:10.1021/om049297q

data_4060025
_publ_section_title
;
 Selective Dimerization/Oligomerization of \a-Olefins by Cobalt
 Bis(imino)pyridine Catalysts Stabilized by Trifluoromethyl
 Substituents: Group 9 Metal Catalysts with Productivities Matching
 Those of Iron Systems
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_journal_name_full               Organometallics
_journal_page_first              280
_journal_page_last               286
_journal_paper_doi               10.1021/om049297q
_journal_volume                  24
_journal_year                    2005
_chemical_formula_sum            'C24 H17 Br2 Cl2 Co F8 N3'
_chemical_formula_weight         789.06
_chemical_name_systematic
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 ? 
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_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.8359(19)
_cell_length_b                   18.0027(18)
_cell_length_c                   20.0598(17)
_cell_measurement_reflns_used    30
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      12.48
_cell_measurement_theta_min      5.15
_cell_volume                     5718.8(10)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      183(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w scans'
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0847
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            5000
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.99
_diffrn_standards_decay_%        12.75
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    3.654
_exptl_absorpt_correction_T_max  0.1506
_exptl_absorpt_correction_T_min  0.1198
_exptl_absorpt_correction_type   Ellipsoidal
_exptl_crystal_colour            Brown
_exptl_crystal_density_diffrn    1.833
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prisms
_exptl_crystal_F_000             3080
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.43
_exptl_crystal_size_min          0.40
_refine_diff_density_max         0.618
_refine_diff_density_min         -0.500
_refine_diff_density_rms         0.116
_refine_ls_extinction_coef       0.00039(8)
_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   0.962
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     364
_refine_ls_number_reflns         5000
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.962
_refine_ls_R_factor_all          0.1051
_refine_ls_R_factor_gt           0.0522
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0481P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1007
_refine_ls_wR_factor_ref         0.1140
_reflns_number_gt                3127
_reflns_number_total             5000
_reflns_threshold_expression     >2sigma(I)
_cod_depositor_comments
;
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 
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_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               4060025