Steric Bulkiness-Dependent Structural Diversity in Nickel(II) Complexes of N-Heterocyclic Carbenes: Synthesis and Structural Characterization of Tetra-, Penta-, and Hexacoordinate Nickel Complexes
Zhang, Xiaoming; Liu, Bin; Liu, Ailing; Xie, Weilong; Chen, Wanzhi; Organometallics 28 (2009) 1336–; doi:10.1021/om800982r

data_4068614
_publ_section_title
;
 Steric Bulkiness-Dependent Structural Diversity in Nickel(II) Complexes
 of N-Heterocyclic Carbenes: Synthesis and Structural Characterization of
 Tetra-, Penta-, and Hexacoordinate Nickel Complexes
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              1336
_journal_paper_doi               10.1021/om800982r
_journal_volume                  28
_journal_year                    2009
_chemical_formula_sum            'C20 H23 F12 N9 Ni P2'
_chemical_formula_weight         738.12
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
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_symmetry_space_group_name_Hall  '-P 2ybc'
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_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                 93.2280(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.4292(17)
_cell_length_b                   10.6029(10)
_cell_length_c                   18.0231(18)
_cell_measurement_temperature    298(2)
_cell_volume                     2943.8(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0579
_diffrn_reflns_av_sigmaI/netI    0.0609
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            14887
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.23
_exptl_absorpt_coefficient_mu    0.874
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.665
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1488
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.48
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.801
_refine_diff_density_min         -0.567
_refine_diff_density_rms         0.084
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     474
_refine_ls_number_reflns         5201
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_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^)+(0.0945P)^2^+6.1221P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1591
_refine_ls_wR_factor_ref         0.2127
_reflns_number_gt                2988
_reflns_number_total             5201
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om800982r_si_002.cif
_cod_data_source_block           080604e
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'P2(1)/c  '
_cod_database_code               4068614