Imido titanium compounds bearing the 6-dimethylamino-1,4,6-trimethyl-1,4-diazacycloheptane ligand: synthesis, structures, solution dynamics and ethylene polymerisation capability
Hayday, Gregory J.; Wang, Chao; Rees, Nicholas H.; Mountford, Philip; Dalton Transactions  (2008) 3301–3310; doi:10.1039/b802027b

data_7004015
_publ_section_title
;
 Imido titanium compounds bearing the
 6-dimethylamino-1,4,6-trimethyl-1,4-diazacycloheptane ligand:
 synthesis, structures, solution dynamics and ethylene polymerisation
 capability
;
_journal_issue                   25
_journal_name_full               'Dalton Transactions'
_journal_page_first              3301
_journal_page_last               3310
_journal_paper_doi               10.1039/b802027b
_journal_year                    2008
_chemical_formula_moiety         'C22 H40 Cl4 N4 Ti1, CH2Cl2'
_chemical_formula_sum            'C23 H42 Cl4 N4 Ti'
_chemical_formula_weight         564.32
_chemical_name_systematic
;
Ti(N-2,6-C6H3iPr2)(Me4DACH)Cl2 .CH2Cl2
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ac'
_symmetry_space_group_name_H-M   'P c m n'
_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                   9.3464(2)
_cell_length_b                   13.9957(3)
_cell_length_c                   21.1047(5)
_cell_measurement_reflns_used    5808
_cell_measurement_temperature    150
_cell_measurement_theta_max      27
_cell_measurement_theta_min      5
_cell_volume                     2760.69(11)
_computing_cell_refinement       'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1997-2001).'
_computing_data_reduction        'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_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  0.037
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            11674
_diffrn_reflns_theta_full        27.493
_diffrn_reflns_theta_max         27.493
_diffrn_reflns_theta_min         5.238
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.716
_exptl_absorpt_correction_T_max  0.87
_exptl_absorpt_correction_T_min  0.81
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.358
_exptl_crystal_description       plate
_exptl_crystal_F_000             1192
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.32
_refine_diff_density_min         -0.33
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   0.9154
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     166
_refine_ls_number_reflns         2154
_refine_ls_number_restraints     5
_refine_ls_R_factor_all          0.0480
_refine_ls_R_factor_gt           0.0291
_refine_ls_shift/su_max          0.001
_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:
0.456 0.201 0.181
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0524
_refine_ls_wR_factor_gt          0.0347
_refine_ls_wR_factor_ref         0.0347
_reflns_limit_h_max              12
_reflns_limit_h_min              0
_reflns_limit_k_max              18
_reflns_limit_k_min              0
_reflns_limit_l_max              27
_reflns_limit_l_min              0
_reflns_number_gt                2154
_reflns_number_total             3261
_reflns_threshold_expression     I>3.0\s(I)
_oxford_diffrn_Wilson_B_factor   1.85
_oxford_diffrn_Wilson_scale      18.25
_cod_data_source_file            b802027b.txt
_cod_data_source_block           COMPOUND_3-trans
_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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P c m n '
_cod_original_formula_sum        'C23 H42 Cl4 N4 Ti1'
_cod_database_code               7004015