Lactide polymerization catalyzed by Mg and Zn diketiminate complexes with flexible ligand frameworks.
Whitehorne, Todd J. J.; Vabre, Boris; Schaper, Frank; Dalton transactions (Cambridge, England : 2003) 43 (2014) 6339–6352; doi:10.1039/c3dt53278j

data_7030032
_publ_section_title
;
 Lactide polymerization catalyzed by Mg and Zn diketiminate complexes with
 flexible ligand frameworks.
;
_journal_issue                   17
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6339
_journal_page_last               6352
_journal_paper_doi               10.1039/c3dt53278j
_journal_volume                  43
_journal_year                    2014
_chemical_compound_source        'Synthesized by the authors. See text'
_chemical_formula_moiety         'C76 H72 N4 O2 Zn2, 2(C H2 Cl2)'
_chemical_formula_sum            'C78 H76 Cl4 N4 O2 Zn2'
_chemical_formula_weight         1373.97
_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                95.0500(10)
_cell_angle_beta                 115.269(2)
_cell_angle_gamma                92.8140(10)
_cell_formula_units_Z            1
_cell_length_a                   11.8196(4)
_cell_length_b                   12.4402(5)
_cell_length_c                   12.4806(5)
_cell_measurement_reflns_used    9878
_cell_measurement_temperature    150
_cell_measurement_theta_max      71.99
_cell_measurement_theta_min      3.58
_cell_volume                     1645.42(11)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_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 0.952
_diffrn_measured_fraction_theta_max 0.952
_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  0.0353
_diffrn_reflns_av_sigmaI/netI    0.0211
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            21587
_diffrn_reflns_theta_full        72.43
_diffrn_reflns_theta_max         72.43
_diffrn_reflns_theta_min         3.58
_exptl_absorpt_coefficient_mu    2.790
_exptl_absorpt_correction_T_max  0.611467
_exptl_absorpt_correction_T_min  0.447932
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.387
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             716
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.27
_refine_diff_density_max         1.341
_refine_diff_density_min         -1.443
_refine_diff_density_rms         0.097
_refine_ls_extinction_coef       0.0118(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     409
_refine_ls_number_reflns         6223
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0554
_refine_ls_R_factor_gt           0.0544
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0800P)^2^+2.2062P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1395
_refine_ls_wR_factor_ref         0.1405
_reflns_number_gt                5998
_reflns_number_total             6223
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt53278j2.cif
_cod_data_source_block           todd14
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/current/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7030032