Exceptionally high lactide polymerization activity of zirconium complexes with bridged diketiminate ligands.
El-Zoghbi, Ibrahim; Whitehorne, Todd J. J.; Schaper, Frank; Dalton transactions (Cambridge, England : 2003) 42 (2013) 9376–9387; doi:10.1039/c2dt31761c

data_7022117
_publ_section_title
;
 Exceptionally high lactide polymerization activity of zirconium complexes
 with bridged diketiminate ligands.
;
_journal_issue                   25
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9376
_journal_page_last               9387
_journal_paper_doi               10.1039/c2dt31761c
_journal_volume                  42
_journal_year                    2013
_chemical_formula_moiety         'C32 H42 Cl2 N4 Zr, C6 H6'
_chemical_formula_sum            'C38 H48 Cl2 N4 Zr'
_chemical_formula_weight         722.92
_chemical_name_systematic
;
?
;
_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                100.423(2)
_cell_angle_beta                 104.614(2)
_cell_angle_gamma                96.408(2)
_cell_formula_units_Z            2
_cell_length_a                   9.7217(4)
_cell_length_b                   11.9708(5)
_cell_length_c                   16.5433(7)
_cell_measurement_reflns_used    6871
_cell_measurement_temperature    150
_cell_measurement_theta_max      68.30
_cell_measurement_theta_min      2.83
_cell_volume                     1807.04(13)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150
_diffrn_detector_area_resol_mean 5.5
_diffrn_measured_fraction_theta_full 0.975
_diffrn_measured_fraction_theta_max 0.975
_diffrn_measurement_device_type  'Bruker SMART 6000 / Nonius FR591'
_diffrn_measurement_method       '\w scan'
_diffrn_radiation_monochromator  'Helios multi-layers optics'
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0487
_diffrn_reflns_av_sigmaI/netI    0.0605
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            25219
_diffrn_reflns_theta_full        69.62
_diffrn_reflns_theta_max         69.62
_diffrn_reflns_theta_min         2.83
_exptl_absorpt_coefficient_mu    4.086
_exptl_absorpt_correction_T_max  0.80
_exptl_absorpt_correction_T_min  0.47
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.329
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             756
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.585
_refine_diff_density_min         -0.340
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.915
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     414
_refine_ls_number_reflns         6640
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.915
_refine_ls_R_factor_all          0.0471
_refine_ls_R_factor_gt           0.0327
_refine_ls_shift/su_max          0.016
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0341P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0703
_refine_ls_wR_factor_ref         0.0734
_reflns_number_gt                5226
_reflns_number_total             6640
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt31761c.txt
_cod_data_source_block           todd15
_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.

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               7022117