Synthesis, X-ray structures, and controlled ring opening polymerization behavior of L-lactide using titanium complexes chelated by tetradentate diamine-diethanolate ligand.
Kim, So Han; Kim, Da Jung; Go, Min Jeong; Ko, Young Soo; Lee, Junseong; Kim, Youngjo; Dalton transactions (Cambridge, England : 2003) 41 (2012) 11619–11626; doi:10.1039/c2dt31357j

data_7020358
_publ_section_title
;
 Synthesis, X-ray structures, and controlled ring opening polymerization
 behavior of L-lactide using titanium complexes chelated by tetradentate
 diamine-diethanolate ligand.
;
_journal_issue                   38
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              11619
_journal_page_last               11626
_journal_paper_doi               10.1039/c2dt31357j
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C18 H40 N2 O4 Ti'
_chemical_formula_weight         396.42
_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                105.316(2)
_cell_angle_beta                 97.911(2)
_cell_angle_gamma                109.093(2)
_cell_formula_units_Z            2
_cell_length_a                   9.1651(4)
_cell_length_b                   9.2522(3)
_cell_length_c                   15.1186(6)
_cell_measurement_reflns_used    9990
_cell_measurement_temperature    130(2)
_cell_measurement_theta_max      34.47
_cell_measurement_theta_min      1.44
_cell_volume                     1132.61(8)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    Diamond
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      130(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.881
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0270
_diffrn_reflns_av_sigmaI/netI    0.0286
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            32384
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         34.47
_diffrn_reflns_theta_min         1.44
_exptl_absorpt_coefficient_mu    0.399
_exptl_absorpt_correction_T_max  0.95
_exptl_absorpt_correction_T_min  0.90
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.162
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             432
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.401
_refine_diff_density_min         -0.404
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     236
_refine_ls_number_reflns         8432
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0383
_refine_ls_R_factor_gt           0.0305
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0469P)^2^+0.1791P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0853
_refine_ls_wR_factor_ref         0.0897
_reflns_number_gt                7204
_reflns_number_total             8432
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt31357j.txt
_cod_data_source_block           kyj24-p-1
_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 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Empirical'
changed to 'empirical' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from
2011-04-26.

'_refine_ls_hydrogen_treatment' value 'Constr' changed
to 'constr' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7020358