The ligand redox behavior and role in 1,2-bis[(2,6-diisopropylphenyl)imino]-acenaphthene nickel-TMA(MAO) systems for ethylene polymerization
Wei Gao; Lan Xin; Zhiqiang Hao; Guodong Li; Ji-Hu Su; Lijing Zhou; Ying Mu; Chem.Commun. 51 (2015) 7004–; doi:10.1039/C5cc00582E

data_7116966
_publ_section_title
;
 The ligand redox behavior and role in
 1,2-bis[(2,6-diisopropylphenyl)imino]-acenaphthene nickel-TMA(MAO)
 systems for ethylene polymerization
;
_journal_name_full               Chem.Commun.
_journal_page_first              7004
_journal_paper_doi               10.1039/C5cc00582E
_journal_volume                  51
_journal_year                    2015
_chemical_formula_sum            'C38 H46 Al Br2 N2 Ni'
_chemical_formula_weight         776.28
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-01-21 deposited with the CCDC.
2015-03-17 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.7598(11)
_cell_length_b                   18.9444(15)
_cell_length_c                   14.2281(11)
_cell_measurement_reflns_used    4531
_cell_measurement_temperature    185(2)
_cell_measurement_theta_max      25.98
_cell_measurement_theta_min      2.32
_cell_volume                     3708.9(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      185(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scan'
_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  0.0475
_diffrn_reflns_av_sigmaI/netI    0.0302
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            22125
_diffrn_reflns_theta_full        26.04
_diffrn_reflns_theta_max         26.04
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    2.729
_exptl_absorpt_correction_T_max  0.6850
_exptl_absorpt_correction_T_min  0.5980
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; Bruker, 2000'
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.390
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1596
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.651
_refine_diff_density_min         -0.301
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     206
_refine_ls_number_reflns         3661
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0514
_refine_ls_R_factor_gt           0.0343
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0503P)^2^+0.8671P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0823
_refine_ls_wR_factor_ref         0.0905
_reflns_number_gt                2837
_reflns_number_total             3661
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5cc00582e2.cif
_cod_data_source_block           Complex_4
_cod_original_sg_symbol_H-M      Pbcn
_cod_database_code               7116966