Magnesium complexes supported by salan-like ligands: Synthesis, characterization and their application in the ring-opening polymerization of rac-lactide.
Song, Shaodi; Ma, Haiyan; Yang, Yang; Dalton transactions (Cambridge, England : 2003) 42 (2013) 14200–14211; doi:10.1039/c3dt51344k

data_7021893
_publ_section_title
;
 Magnesium complexes supported by salan-like ligands: Synthesis,
 characterization and their application in the ring-opening polymerization
 of rac-lactide.
;
_journal_issue                   39
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              14200
_journal_page_last               14211
_journal_paper_doi               10.1039/c3dt51344k
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C33 H59 Mg N3 O2 Si2'
_chemical_formula_weight         610.32
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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-97
_cell_angle_alpha                90.00
_cell_angle_beta                 101.172(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.423(4)
_cell_length_b                   27.293(10)
_cell_length_c                   15.241(6)
_cell_measurement_reflns_used    914
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      21.428
_cell_measurement_theta_min      2.620
_cell_volume                     3845(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0562
_diffrn_reflns_av_sigmaI/netI    0.0570
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            15806
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.49
_diffrn_standards_decay_%        6.08
_exptl_absorpt_coefficient_mu    0.138
_exptl_absorpt_correction_T_max  0.9756
_exptl_absorpt_correction_T_min  0.9469
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.054
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1336
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.373
_refine_diff_density_min         -0.258
_refine_diff_density_rms         0.042
_refine_ls_extinction_coef       0.0004(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   0.993
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     386
_refine_ls_number_reflns         6765
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.993
_refine_ls_R_factor_all          0.1022
_refine_ls_R_factor_gt           0.0615
_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^)+(0.1065P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1683
_refine_ls_wR_factor_ref         0.1929
_reflns_number_gt                3957
_reflns_number_total             6765
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt51344k.txt
_cod_data_source_block           a00120a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_cell_volume        3846(2)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7021893