Hafnium Amidoquinoline Complexes: Highly Active Olefin Polymerization Catalysts with Ultrahigh Molecular Weight Capacity
Fontaine, Philip P.; Klosin, Jerzy; McDougal, Nolan T.; Organometallics 31 (2012) 6244–; doi:10.1021/om3005417

data_4079168
_publ_section_title
;
 Hafnium Amidoquinoline Complexes: Highly Active Olefin Polymerization
 Catalysts with Ultrahigh Molecular Weight Capacity
;
_journal_issue                   17
_journal_name_full               Organometallics
_journal_page_first              6244
_journal_paper_doi               10.1021/om3005417
_journal_volume                  31
_journal_year                    2012
_chemical_formula_sum            'C51 H57 Hf N2'
_chemical_formula_weight         876.48
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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                 90.103(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.3560(8)
_cell_length_b                   10.8341(5)
_cell_length_c                   19.6206(8)
_cell_measurement_reflns_used    9929
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.89
_cell_measurement_theta_min      2.39
_cell_volume                     4114.5(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \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  0.0315
_diffrn_reflns_av_sigmaI/netI    0.0309
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            36386
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.05
_exptl_absorpt_coefficient_mu    2.572
_exptl_absorpt_correction_T_max  0.9041
_exptl_absorpt_correction_T_min  0.5125
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.415
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1796
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.723
_refine_diff_density_min         -0.364
_refine_diff_density_rms         0.076
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.008
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     492
_refine_ls_number_reflns         9443
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.008
_refine_ls_R_factor_all          0.0328
_refine_ls_R_factor_gt           0.0223
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0194P)^2^+1.8693P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0437
_refine_ls_wR_factor_ref         0.0465
_reflns_number_gt                7944
_reflns_number_total             9443
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om3005417_si_001.cif
_cod_data_source_block           6a
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4079168