Binolate complexes of lithium, zinc, aluminium, and titanium; preparations, structures, and studies of lactide polymerization
Chisholm, Malcolm H.; Lin, Chu-Chieh; Gallucci, Judith C.; Ko, Bao-Tsan; Dalton Transactions  (2003) 406–; doi:10.1039/b211582b

data_7012515
_publ_section_title
;
 Binolate complexes of lithium, zinc, aluminium, and titanium;
 preparations, structures, and studies of lactide polymerization
;
_journal_issue                   3
_journal_name_full               'Dalton Transactions'
_journal_page_first              406
_journal_paper_doi               10.1039/b211582b
_journal_year                    2003
_chemical_formula_sum            'C32 H50 Li4 O2'
_chemical_formula_weight         494.48
_chemical_name_systematic
; 
? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-93
_cell_angle_alpha                90.00
_cell_angle_beta                 107.116(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   20.0434(2)
_cell_length_b                   16.0320(2)
_cell_length_c                   20.3345(2)
_cell_measurement_temperature    150(2)
_cell_volume                     6244.81(12)
_computing_cell_refinement       'DENZO (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1999)'
_computing_data_reduction        'DENZO (Otwinowski & Minor, 1997)'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measurement_device       'Nonius Kappa CCD'
_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  0.043
_diffrn_reflns_av_sigmaI/netI    0.0341
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            50528
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.10
_exptl_absorpt_coefficient_mu    0.061
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.052
_exptl_crystal_description       'rectangular block'
_exptl_crystal_F_000             2160
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.277
_refine_diff_density_min         -0.230
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.026
_refine_ls_goodness_of_fit_obs   1.077
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     371
_refine_ls_number_reflns         7168
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_restrained_S_obs      1.077
_refine_ls_R_factor_all          0.0748
_refine_ls_R_factor_obs          0.0499
_refine_ls_shift/esd_max         0.024
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0679P)^2^+4.0730P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1394
_refine_ls_wR_factor_obs         0.1247
_reflns_number_observed          5288
_reflns_number_total             7168
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            b211582b.txt
_cod_data_source_block           Chisholm996
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0679P)^2^+4.0730P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0679P)^2^+4.0730P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7012515