Access to highly active and thermally stable iron procatalysts using bulky 2-[1-(2,6-dibenzhydryl-4-methylphenylimino)ethyl]-6-[1-(arylimino)ethyl]pyridine ligands
Jiangang Yu; Wenjuan Zhang; Hao Liu; Xiang Hao; Wen-Hua Sun; Chem.Commun. 47 (2011) 3257–; doi:10.1039/c0cc05373b

data_7106090
_publ_section_title
;
 Access to highly active and thermally stable iron procatalysts using
 bulky
 2-[1-(2,6-dibenzhydryl-4-methylphenylimino)ethyl]-6-[1-(arylimino)ethyl]pyridine
 ligands
;
_journal_name_full               Chem.Commun.
_journal_page_first              3257
_journal_paper_doi               10.1039/c0cc05373b
_journal_volume                  47
_journal_year                    2011
_chemical_formula_sum            'C54 H53 Cl2 Fe N3 O0'
_chemical_formula_weight         870.74
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 90.10(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.461(3)
_cell_length_b                   14.946(3)
_cell_length_c                   18.995(4)
_cell_measurement_reflns_used    12324
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.3488
_cell_measurement_theta_min      1.3625
_cell_volume                     4673.3(16)
_computing_cell_refinement       'Siemens SMART & SAINT'
_computing_data_collection       'Siemens SMART'
_computing_data_reduction        'Siemens XPREP'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Siemens SHELXTL'
_computing_structure_solution    'Siemens SHELXTL'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_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  0.1228
_diffrn_reflns_av_sigmaI/netI    0.1105
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            31868
_diffrn_reflns_theta_full        25.31
_diffrn_reflns_theta_max         25.31
_diffrn_reflns_theta_min         1.24
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.476
_exptl_absorpt_correction_T_max  0.9812
_exptl_absorpt_correction_T_min  0.8984
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.238
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1832
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.602
_refine_diff_density_min         -0.857
_refine_diff_density_rms         0.217
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.409
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     541
_refine_ls_number_reflns         8450
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.409
_refine_ls_R_factor_all          0.1802
_refine_ls_R_factor_gt           0.1568
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0896P)^2^+21.4226P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3231
_refine_ls_wR_factor_ref         0.3416
_reflns_number_gt                7151
_reflns_number_total             8450
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0CC05373B.TXT
_cod_data_source_block           Fe3
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7106090