Rare earth metal complexes supported by 1,ω-dithiaalkanediyl-bridged bis(phenolato) ligands: synthesis, characterization and ring-opening polymerization catalysis of l-lactide
Ma, Haiyan; Spaniol, Thomas P.; Okuda, Jun; Dalton Transactions  (2003) 4770–4780; doi:10.1039/b311604b

data_7013670
_publ_section_title
;
 Rare earth metal complexes supported by 1,\w-dithiaalkanediyl-bridged
 bis(phenolato) ligands: synthesis, characterization and ring-opening
 polymerization catalysis of l-lactide
;
_journal_coden_ASTM              DTARAF
_journal_issue                   24
_journal_name_full               'Dalton Transactions'
_journal_page_first              4770
_journal_page_last               4780
_journal_paper_doi               10.1039/b311604b
_journal_year                    2003
_chemical_formula_sum            'C39 H68 N O3 S2 Si2 Y'
_chemical_formula_weight         808.15
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 98.230(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.021(3)
_cell_length_b                   15.195(4)
_cell_length_c                   22.294(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      11.2
_cell_measurement_theta_min      8.2
_cell_volume                     4700.8(17)
_computing_cell_refinement       'CAD4 Express (Enraf Nonius, 1994)'
_computing_data_collection       'CAD4 Express (Enraf Nonius, 1994)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'CAD4 (Enraf nonius)'
_diffrn_measurement_method       'non-profiled omega/2theta 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  0.0709
_diffrn_reflns_av_sigmaI/netI    0.2343
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            11999
_diffrn_reflns_theta_full        24.97
_diffrn_reflns_theta_max         24.97
_diffrn_reflns_theta_min         3.06
_diffrn_standards_decay_%        14
_diffrn_standards_interval_count 178
_diffrn_standards_interval_time  59
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    1.412
_exptl_absorpt_correction_T_max  0.6378
_exptl_absorpt_correction_T_min  0.4846
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   'semi-empirical, psi-scan'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.142
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1728
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.256
_refine_diff_density_min         -0.231
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.942
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     557
_refine_ls_number_reflns         8220
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.942
_refine_ls_R_factor_all          0.2478
_refine_ls_R_factor_gt           0.0714
_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^)+(0.0482P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1065
_refine_ls_wR_factor_ref         0.1470
_reflns_number_gt                2938
_reflns_number_total             8220
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b311604b.txt
_cod_data_source_block           hm2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'psi scan' changed to 'psi-scan'
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 21/C'
_cod_database_code               7013670
_diffrn_standards_corr_method    'STDANAL linear fit'
_diffrn_standards_corr_fact_max  1.168
_diffrn_standards_corr_fact_min  1.006