2-tert-Butyl and 2-phenylphenylimido complexes of titanium(IV) and their olefin polymerisation activity
Nielson, Alastair J.; Glenny, Mark W.; Rickard, Clifton E. F.; Journal of the Chemical Society, Dalton Transactions  (2001) 232–; doi:10.1039/b008232p

data_7010365
_publ_section_title
;
 2-tert-Butyl and 2-phenylphenylimido complexes of titanium(IV) and
 their olefin polymerisation activity
;
_journal_issue                   3
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              232
_journal_paper_doi               10.1039/b008232p
_journal_year                    2001
_chemical_formula_moiety         'C40 H46 Cl4 N6 Ti2, 2(C H2 Cl2)'
_chemical_formula_sum            'C22 H27 Cl6 N3 Ti'
_chemical_formula_weight         594.07
_chemical_name_systematic
; 
 dichloro-di-\m-chloro(2-t-butylphenylimido)tetrakis-
pyridinedititanium(IV) bis(dichloromethane) solvate
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                77.0130(10)
_cell_angle_beta                 77.1400(9)
_cell_angle_gamma                84.5900(10)
_cell_formula_units_Z            2
_cell_length_a                   8.042
_cell_length_b                   10.73410(10)
_cell_length_c                   16.4281(2)
_cell_measurement_reflns_used    5528
_cell_measurement_temperature    203(2)
_cell_measurement_theta_max      26
_cell_measurement_theta_min      2
_cell_volume                     1345.73(2)
_computing_cell_refinement       'Siemens SMART'
_computing_data_collection       'Siemens SMART (Siemens, 1995)'
_computing_data_reduction        'Siemens SAINT  (Siemens, 1995)'
_computing_molecular_graphics    'Siemens SHELXTL (Siemens, 1994)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 Sheldrick, (1997)'
_computing_structure_solution    'SHELXS Sheldrick, (1990)'
_diffrn_ambient_temperature      203(2)
_diffrn_measured_fraction_theta_full 0.887
_diffrn_measured_fraction_theta_max 0.887
_diffrn_measurement_device_type  'Siemens SMART'
_diffrn_measurement_method       'Area detector \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  0.0313
_diffrn_reflns_av_sigmaI/netI    0.0421
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            13769
_diffrn_reflns_theta_full        28.59
_diffrn_reflns_theta_max         28.59
_diffrn_reflns_theta_min         1.30
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.930
_exptl_absorpt_correction_T_max  0.8008
_exptl_absorpt_correction_T_min  0.7189
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Blessing, 1995'
_exptl_crystal_colour            Brown
_exptl_crystal_density_diffrn    1.466
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.992
_refine_diff_density_min         -1.210
_refine_diff_density_rms         0.101
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     292
_refine_ls_number_reflns         6103
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0638
_refine_ls_R_factor_gt           0.0552
_refine_ls_shift/su_max          0.029
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0983P)^2^+1.0795P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1548
_refine_ls_wR_factor_ref         0.1615
_reflns_number_gt                5181
_reflns_number_total             6103
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b008232p.txt
_cod_data_source_block           '[4]'
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' 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_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0983P)^2^+1.0795P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0983P)^2^+1.0795P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        1345.67(2)
_cod_database_code               7010365