Titanium, zinc and alkaline-earth metal complexes supported by bulky O,N,N,O-multidentate ligands: syntheses, characterisation and activity in cyclic ester polymerisation.
Sarazin, Yann; Howard, Ruth H.; Hughes, David L.; Humphrey, Simon M.; Bochmann, Manfred; Dalton transactions (Cambridge, England : 2003)  (2006) 340–350; doi:10.1039/b511851d

data_7006548
_publ_section_title
;
 Titanium, zinc and alkaline-earth metal complexes supported by bulky
 O,N,N,O-multidentate ligands: syntheses, characterisation and activity
 in cyclic ester polymerisation.
;
_journal_issue                   2
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              340
_journal_page_last               350
_journal_paper_doi               10.1039/b511851d
_journal_year                    2006
_chemical_formula_moiety         'C34 H56 N2 O4 Ti'
_chemical_formula_structural
'[Ti {N(CH2C6H2O-2,tBu-3,Me-5)2(CH2CH2NMe2)} (OiPr)2]'
_chemical_formula_sum            'C34 H56 N2 O4 Ti'
_chemical_formula_weight         604.71
_chemical_name_common            'Complex 2-Ti'
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   17.9796(4)
_cell_length_b                   16.7107(3)
_cell_length_c                   22.3627(4)
_cell_measurement_temperature    180(1)
_cell_volume                     6718.9(2)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius B.V., 1998)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEP (Johnson, 1971)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      180(1)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Nonius KappaCCD diffractometer'
_diffrn_measurement_method       'Thin slice \w and \f scans'
_diffrn_radiation_source         'Fine-focus sealed tube'
_diffrn_radiation_type           Mo-K\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0757
_diffrn_reflns_av_sigmaI/netI    0.0498
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            34498
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         3.04
_exptl_absorpt_coefficient_mu    0.292
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements
SORTAV (Blessing, 1995)
;
_exptl_crystal_colour            'very pale yellow,'
_exptl_crystal_density_diffrn    1.196
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'cube-like block'
_exptl_crystal_F_000             2624
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.282
_refine_diff_density_min         -0.485
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     377
_refine_ls_number_reflns         5924
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0751
_refine_ls_R_factor_gt           0.0497
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0498P)^2^+5.1289P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1108
_refine_ls_wR_factor_ref         0.1199
_reflns_number_gt                4482
_reflns_number_total             5924
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            b511851d.txt
_cod_data_source_block           ruthh2a
_cod_original_sg_symbol_H-M      Pbcn
_cod_database_code               7006548