Sterically expanded CGC catalysts: substituent effects on ethylene and α-olefin polymerization.
Chai, Jianfang; Abboud, Khalil A.; Miller, Stephen A.; Dalton transactions (Cambridge, England : 2003) 42 (2013) 9139–9147; doi:10.1039/c3dt50163a

data_7021596
_publ_section_title
;
 Sterically expanded CGC catalysts: substituent effects on ethylene and
 \a-olefin polymerization.
;
_journal_issue                   25
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9139
_journal_page_last               9147
_journal_paper_doi               10.1039/c3dt50163a
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C31 H45 Cl2 N Si Zr'
_chemical_formula_weight         621.89
_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
_audit_update_record
;
2009-11-02 # Formatted by publCIF
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.4408(15)
_cell_length_b                   12.349(2)
_cell_length_c                   30.170(5)
_cell_measurement_reflns_used    815
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.0
_cell_measurement_theta_min      2.0
_cell_volume                     3144.8(9)
_computing_cell_refinement       'Bruker APEX2'
_computing_data_collection       'Bruker APEX2 (Bruker, 2008)'
_computing_data_reduction        'Bruker SAINT (Bruker, 2008)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL (Bruker, 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       '\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  0.0243
_diffrn_reflns_av_sigmaI/netI    0.0255
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -39
_diffrn_reflns_number            25282
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.35
_exptl_absorpt_coefficient_mu    0.577
_exptl_absorpt_correction_T_max  0.9472
_exptl_absorpt_correction_T_min  0.8997
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
'based on measured indexed crystal faces, Bruker SHELXTL v6.12 (Bruker 2007)'
_exptl_crystal_colour            gold
_exptl_crystal_density_diffrn    1.313
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cubes
_exptl_crystal_F_000             1304
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.457
_refine_diff_density_min         -0.276
_refine_diff_density_rms         0.051
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     337
_refine_ls_number_reflns         7190
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0249
_refine_ls_R_factor_gt           0.0224
_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^)+(0.0268P)^2^+0.8478P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0535
_refine_ls_wR_factor_ref         0.0547
_reflns_number_gt                6794
_reflns_number_total             7190
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c3dt50163a.txt
_cod_data_source_block           jfc5_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P212121
_cod_database_code               7021596