Nickel(II) complexes bearing 4,5-bis(arylimino)pyrenylidenes: synthesis, characterization, and ethylene polymerization behaviour.
Song, Kuifeng; Yang, Wenhong; Li, Baixiang; Liu, Qingbin; Redshaw, Carl; Li, Yuesheng; Sun, Wen-Hua; Dalton transactions (Cambridge, England : 2003) 42 (2013) 9166–9175; doi:10.1039/c2dt32343e

data_7022320
_publ_section_title
;
 Nickel(II) complexes bearing 4,5-bis(arylimino)pyrenylidenes: synthesis,
 characterization, and ethylene polymerization behaviour.
;
_journal_issue                   25
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9166
_journal_page_last               9175
_journal_paper_doi               10.1039/c2dt32343e
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C38 H38 N2'
_chemical_formula_weight         522.70
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                79.56(3)
_cell_angle_beta                 86.95(3)
_cell_angle_gamma                88.80(3)
_cell_formula_units_Z            4
_cell_length_a                   8.0890(16)
_cell_length_b                   18.545(4)
_cell_length_c                   19.786(4)
_cell_measurement_reflns_used    4390
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.4802
_cell_measurement_theta_min      1.6634
_cell_volume                     2914.6(11)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2007)'
_computing_molecular_graphics    'XP in Siemens SHELXTL (Sheldrick, 1994)'
_computing_publication_material  'SHELX97 (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 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'MM007-HF CCD(Saturn 724+)'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1117
_diffrn_reflns_av_sigmaI/netI    0.1290
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            22029
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.05
_exptl_absorpt_coefficient_mu    0.069
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.3360
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.191
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             1120
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.552
_refine_diff_density_min         -0.461
_refine_diff_density_rms         0.111
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.098
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     721
_refine_ls_number_reflns         10223
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.098
_refine_ls_R_factor_all          0.1793
_refine_ls_R_factor_gt           0.1339
_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^)+(0.1952P)^2^+3.8376P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3404
_refine_ls_wR_factor_ref         0.3873
_reflns_number_gt                6881
_reflns_number_total             10223
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt32343e.txt
_cod_data_source_block           L3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        2914.6(10)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7022320