μ2,η1-N-[(N,N-Dimethylamino)dimethylsilyl]-2,6-diisopropylanilido Metal (Li, Zr, Hf) Compounds and the Catalytic Behaviors of the IVB Compounds in Ethylene (Co)Polymerizationξ
Yuan, Shifang; Wei, Xuehong; Tong, Hongbo; Zhang, Liping; Liu, Diansheng; Sun, Wen-Hua; Organometallics 29 (2010) 2085–; doi:10.1021/om100044b

data_4083390
_publ_section_title
;
 \m2,\h1-N-[(N,N-Dimethylamino)dimethylsilyl]-2,6-diisopropylanilido Metal
 (Li, Zr, Hf) Compounds and the Catalytic Behaviors of the IVB Compounds
 in Ethylene (Co)Polymerization\x
;
_journal_issue                   9
_journal_name_full               Organometallics
_journal_page_first              2085
_journal_paper_doi               10.1021/om100044b
_journal_volume                  29
_journal_year                    2010
_chemical_formula_moiety         'C32 H56 Li2 N2 O2'
_chemical_formula_sum            'C32 H56 Li2 N2 O2'
_chemical_formula_weight         514.67
_chemical_name_systematic
;
 2,6-diisopropylbenzenamido lithium
;
_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                 94.53(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.834(2)
_cell_length_b                   10.759(2)
_cell_length_c                   32.409(7)
_cell_measurement_reflns_used    7241
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.2839
_cell_measurement_theta_min      1.2606
_cell_volume                     3418.3(12)
_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 0.957
_diffrn_measured_fraction_theta_max 0.957
_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  0.0538
_diffrn_reflns_av_sigmaI/netI    0.0533
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            19901
_diffrn_reflns_theta_full        25.33
_diffrn_reflns_theta_max         25.33
_diffrn_reflns_theta_min         1.99
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.060
_exptl_absorpt_correction_T_max  0.9903
_exptl_absorpt_correction_T_min  0.9791
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.000
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       PLATE
_exptl_crystal_F_000             1136
_exptl_crystal_size_max          0.422
_exptl_crystal_size_mid          0.287
_exptl_crystal_size_min          0.202
_refine_diff_density_max         0.149
_refine_diff_density_min         -0.164
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.268
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     351
_refine_ls_number_reflns         5967
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.268
_refine_ls_R_factor_gt           0.1059
_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^)+(0.0747P)^2^+2.4312P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2321
_refine_ls_wR_factor_ref         0.2402
_reflns_number_gt                5262
_reflns_number_total             5967
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om100044b_si_002.cif
_cod_data_source_block           1a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        3418.5(12)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4083390
_refine_ls_r_factor_ref          0.1197