Bimetallic anilido-aldimine Al or Zn complexes for efficient ring-opening polymerization of ε-caprolactone
Yao, Wei; Mu, Ying; Gao, Aihong; Gao, Wei; Ye, Ling; Dalton Transactions  (2008) 3199–3206; doi:10.1039/b719017d

data_7003726
_publ_section_title
;
 Bimetallic anilido-aldimine Al or Zn complexes for efficient
 ring-opening polymerization of \e-caprolactone
;
_journal_issue                   24
_journal_name_full               'Dalton Transactions'
_journal_page_first              3199
_journal_page_last               3206
_journal_paper_doi               10.1039/b719017d
_journal_year                    2008
_chemical_formula_moiety         'C44 H60 Al2 N4'
_chemical_formula_sum            'C44 H60 Al2 N4'
_chemical_formula_weight         698.92
_chemical_melting_point          ?
_chemical_name_systematic
;
?
;
_space_group_IT_number           113
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P -4 2ab'
_symmetry_space_group_name_H-M   'P -4 21 m'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   15.200(2)
_cell_length_b                   15.200(2)
_cell_length_c                   9.0022(18)
_cell_measurement_reflns_used    20121
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.46
_cell_measurement_theta_min      3.00
_cell_volume                     2079.9(6)
_computing_cell_refinement       Process-auto
_computing_data_collection       Process-auto
_computing_data_reduction        Process-auto
_computing_molecular_graphics    SHELXP-97
_computing_publication_material  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 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       omega-scan
_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  0.0496
_diffrn_reflns_av_sigmaI/netI    0.0184
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            20121
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         3.00
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  .
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.104
_exptl_absorpt_correction_T_max  0.9727
_exptl_absorpt_correction_T_min  0.9618
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.116
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             756
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.27
_refine_diff_density_max         0.555
_refine_diff_density_min         -0.369
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   10(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     142
_refine_ls_number_reflns         1417
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.0696
_refine_ls_R_factor_gt           0.0627
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1241P)^2^+0.6409P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1753
_refine_ls_wR_factor_ref         0.1821
_reflns_number_gt                1256
_reflns_number_total             1417
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b719017d.txt
_cod_data_source_block           gg
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
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 

The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_sg_symbol_H-M      P-42(1)m
_cod_database_code               7003726