Magnesium complexes containing bis-amido-oxazolinate ligands as efficient catalysts for ring opening polymerisation of l-lactide
Chen, Ming-Tsz; Chang, Ping-Jung; Huang, Chi-An; Peng, Kuo-Fu; Chen, Chi-Tien; Dalton Transactions  (2009) 9068–9074; doi:10.1039/b907549f

data_7002560
_publ_section_title
;
 Magnesium complexes containing bis-amido-oxazolinate ligands as
 efficient catalysts for ring opening polymerisation of l-lactide
;
_journal_issue                   41
_journal_name_full               'Dalton Transactions'
_journal_page_first              9068
_journal_page_last               9074
_journal_paper_doi               10.1039/b907549f
_journal_year                    2009
_chemical_formula_moiety         'C28 H38 Mg N4 O2, 0.5(C6 H14)'
_chemical_formula_sum            'C31 H45 Mg N4 O2'
_chemical_formula_weight         530.02
_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                88.650(3)
_cell_angle_beta                 77.594(3)
_cell_angle_gamma                86.275(3)
_cell_formula_units_Z            2
_cell_length_a                   8.8207(12)
_cell_length_b                   11.1967(15)
_cell_length_c                   16.708(2)
_cell_measurement_reflns_used    3256
_cell_measurement_temperature    297(2)
_cell_measurement_theta_max      25.363
_cell_measurement_theta_min      2.4965
_cell_volume                     1608.1(4)
_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      297(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_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  0.0193
_diffrn_reflns_av_sigmaI/netI    0.0350
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            9196
_diffrn_reflns_theta_full        26.07
_diffrn_reflns_theta_max         26.07
_diffrn_reflns_theta_min         1.82
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  0.9931
_exptl_absorpt_correction_T_min  0.9796
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.095
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelpiped
_exptl_crystal_F_000             574
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.311
_refine_diff_density_min         -0.194
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         6249
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0820
_refine_ls_R_factor_gt           0.0536
_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^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1527
_refine_ls_wR_factor_ref         0.1693
_reflns_number_gt                4071
_reflns_number_total             6249
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b907549f.txt
_cod_data_source_block           compound_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7002560