Synthesis and Ethylene Polymerization Capability of Metallocene-like Imido Titanium Dialkyl Compounds and Their Reactions with AliBu3
Bolton, Paul D.; Adams, Nico; Clot, Eric; Cowley, Andrew R.; Wilson, Paul J.; Schröder, Martin; Mountford, Philip; Organometallics 25 (2006) 5549–; doi:10.1021/om0606136

data_4074399
_publ_section_title
;
 Synthesis and Ethylene Polymerization Capability of Metallocene-like
 Imido Titanium Dialkyl Compounds and Their Reactions with AliBu3
;
_journal_issue                   23
_journal_name_full               Organometallics
_journal_page_first              5549
_journal_paper_doi               10.1021/om0606136
_journal_volume                  25
_journal_year                    2006
_chemical_absolute_configuration ad
_chemical_compound_source
;
synthesis as described
;
_chemical_formula_moiety         ' C19 H30 F6 N4 Ti '
_chemical_formula_sum            'C19 H30 F6 N4 Ti'
_chemical_formula_weight         476.36
_chemical_name_systematic
;
Ti(N-3,5-C6H3(CF3)2)(Me3[9]aneN3)Me2
;
_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
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.5573(2)
_cell_length_b                   14.1080(2)
_cell_length_c                   18.5066(2)
_cell_measurement_reflns_used    31318
_cell_measurement_temperature    150
_cell_measurement_theta_max      28
_cell_measurement_theta_min      5
_cell_volume                     2234.23(7)
_computing_cell_refinement
; 
KappaCCD software 'DENZO' (Otwinowski & Minor, 1996) 
;
_computing_data_collection
; 
KappaCCD software 'Collect' (Nonius, 2000) 
;
_computing_data_reduction
; 
KappaCCD software 'DENZO' (Otwinowski & Minor, 1996) 
;
_computing_publication_material
; 
CRYSTALS (Watkin et al, 2001) 
;
_computing_structure_refinement
; 
CRYSTALS (Watkin et al, 2001) 
;
_computing_structure_solution    'SIR92 (Giacovazzo et al, 1992)'
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type
; 
Nonius KappaCCD 
;
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.041
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            31318
_diffrn_reflns_theta_full        27.474
_diffrn_reflns_theta_max         27.474
_diffrn_reflns_theta_min         5.100
_diffrn_standards_decay_%        0.00
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.445
_exptl_absorpt_correction_T_max  0.97
_exptl_absorpt_correction_T_min  0.92
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
 Denzo/Scalepack (Otwinowski & Minor, 1996) 
;
_exptl_crystal_colour            ' yellow '
_exptl_crystal_density_diffrn    1.416
_exptl_crystal_description       ' prism '
_exptl_crystal_F_000             992
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.06
_exptl_crystal_thermal_history
; 
The material was crystallised at ambient temperature. A suitable crystal 
was cooled rapidly to 150K for single-crystal X-ray diffraction analysis. 
;
_refine_diff_density_max         0.76
_refine_diff_density_min         -0.53
_refine_ls_abs_structure_details 'Flack, 2210 Friedel-pairs'
_refine_ls_abs_structure_Flack   0.03(3)
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.0932
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     291
_refine_ls_number_reflns         4331
_refine_ls_number_restraints     54
_refine_ls_R_factor_all          0.0508
_refine_ls_R_factor_gt           0.0414
_refine_ls_shift/su_max          0.028836
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 0.636 0.349 0.339 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0574
_refine_ls_wR_factor_gt          0.0487
_refine_ls_wR_factor_ref         0.0487
_reflns_limit_h_max              11
_reflns_limit_h_min              -11
_reflns_limit_k_max              18
_reflns_limit_k_min              0
_reflns_limit_l_max              24
_reflns_limit_l_min              0
_reflns_number_gt                4331
_reflns_number_total             5087
_reflns_threshold_expression     I>3.00u(I)
_cod_data_source_file            om0606136si20060707_074336.cif
_cod_data_source_block           Compound_8
_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.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21 21 21 '
_cod_original_formula_sum        ' C19 H30 F6 N4 Ti '
_cod_database_code               4074399