Zirconium and Titanium Propylene Polymerization Precatalysts Supported by a FluxionalC2-Symmetric Bis(anilide)pyridine Ligand
Tonks, Ian A.; Tofan, Daniel; Weintrob, Edward C.; Agapie, Theodor; Bercaw, John E.; Organometallics 31 (2012) 1965–; doi:10.1021/om201262h

data_4076496
_publ_section_title
;
 Zirconium and Titanium Propylene Polymerization Precatalysts Supported by
 a FluxionalC2-Symmetric Bis(anilide)pyridine Ligand
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              1965
_journal_paper_doi               10.1021/om201262h
_journal_volume                  31
_journal_year                    2012
_chemical_formula_moiety         'C35 H33 Cl2 N3 Zr, 0.75(C7 H8)'
_chemical_formula_sum            'C40.25 H39 Cl2 N3 Zr'
_chemical_formula_weight         726.86
_chemical_name_systematic
;

 ?

;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   17.1199(7)
_cell_length_b                   23.1437(10)
_cell_length_c                   34.8624(15)
_cell_measurement_reflns_used    9976
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      36.16
_cell_measurement_theta_min      2.42
_cell_volume                     13813.1(10)
_computing_cell_refinement       'Bruker SAINT-Plus v7.34A'
_computing_data_collection       'Bruker APEX2 v2.1-0'
_computing_data_reduction        'Bruker SAINT-Plus v7.34A'
_computing_molecular_graphics    'Bruker XP v5.1'
_computing_publication_material  'Bruker XCIF 2008'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.935
_diffrn_measured_fraction_theta_max 0.935
_diffrn_measurement_device_type  'Bruker KAPPA APEX II'
_diffrn_measurement_method       '\w scans; 14 settings'
_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  0.0519
_diffrn_reflns_av_sigmaI/netI    0.0419
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       36
_diffrn_reflns_limit_k_min       -37
_diffrn_reflns_limit_l_max       51
_diffrn_reflns_limit_l_min       -53
_diffrn_reflns_number            360236
_diffrn_reflns_theta_full        36.20
_diffrn_reflns_theta_max         36.20
_diffrn_reflns_theta_min         1.48
_exptl_absorpt_coefficient_mu    0.506
_exptl_absorpt_correction_T_max  0.9011
_exptl_absorpt_correction_T_min  0.8796
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'Light yellow'
_exptl_crystal_density_diffrn    1.398
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             6008
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.24
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_refine_diff_density_max         1.013
_refine_diff_density_min         -0.749
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_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.487(10)
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_refine_ls_number_reflns         60649
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_refine_ls_R_factor_all          0.0527
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_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     w=1/s^2^(Fo^2^)
_refine_ls_weighting_scheme      sigma
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_refine_ls_wR_factor_ref         0.0553
_reflns_number_gt                47805
_reflns_number_total             60649
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om201262h_si_002.cif
_cod_data_source_block           complex5
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from
2010-06-29.

'_refine_ls_weighting_scheme' value 'Sigma' changed to
'sigma' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

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

The following automatic conversions were performed:

'_atom_sites_solution_primary' value 'Direct methods' was changed to
'direct'.

'_atom_sites_solution_secondary' value 'Difference Fourier map' was
changed to 'difmap'.

'_atom_sites_solution_hydrogens' value 'Geometric positions' was
changed to 'geom'.

Automatic conversion script
Id: cif_fix_values 6452 2018-10-05 10:23:21Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               4076496