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_7030039
_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         'C58 H84 Mg2 N4 O2, C Cl2'
_chemical_formula_sum            'C29.5 H43 Cl Mg N2 O'
_chemical_formula_weight         501.42
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 102.436(2)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   15.0133(8)
_cell_length_b                   17.0252(9)
_cell_length_c                   22.8695(13)
_cell_measurement_reflns_used    9969
_cell_measurement_temperature    100
_cell_measurement_theta_max      71.79
_cell_measurement_theta_min      3.26
_cell_volume                     5708.4(5)
_computing_cell_refinement       'SAINT V8.30C(Bruker AXS, )'
_computing_data_collection       'APEX2  (Bruker AXS, 0)'
_computing_data_reduction        'SAINT V8.30C(Bruker AXS, )'
_computing_molecular_graphics    'SHELXTL  (Bruker AXS, 2003)'
_computing_publication_material  'UdMX (Maris, 2004)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker Microstar'
_diffrn_measurement_method       \w
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.042
_diffrn_reflns_av_unetI/netI     0.0263
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            80320
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         71.988
_diffrn_reflns_theta_min         3.230
_diffrn_source                   'Rotating Anode'
_exptl_absorpt_coefficient_mu    1.567
_exptl_absorpt_correction_T_max  0.7535
_exptl_absorpt_correction_T_min  0.6444
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick, 2012)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.167
_exptl_crystal_description       block
_exptl_crystal_F_000             2168
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     663
_refine_ls_number_reflns         11142
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      1.140
_refine_ls_R_factor_all          0.0612
_refine_ls_R_factor_gt           0.0562
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 w=1/[\s^2^(Fo^2^)+(0.0807P)^2^+4.2557P]
 where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1547
_refine_ls_wR_factor_ref         0.1593
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9945
_reflns_number_total             11142
_cod_data_source_file            c3dt53278j2.cif
_cod_data_source_block           TODD38
_cod_original_sg_symbol_H-M      P21/n
_cod_original_formula_sum        'C29.50 H43 Cl Mg N2 O'
_cod_database_code               7030039
_shelx_estimated_absorpt_t_min   0.799
_shelx_estimated_absorpt_t_max   0.799