Synthesis and Structural Studies of Lithium and Sodium Complexes with OOO-Tridentate Bis(phenolate) Ligands: Effective Catalysts for the Ring-Opening Polymerization of l-Lactide
Yong Huang; Yueh-Hsuan Tsai; Wen-Chou Hung; Chieh-Shen Lin; Wei Wang; Jui-Hsien Huang; Saikat Dutta; Chu-Chieh Lin; Inorganic Chemistry 49 (2010) 9416–9425; doi:10.1021/ic1011154

data_4316784
_publ_section_title
;
 Synthesis and Structural Studies of Lithium and Sodium Complexes with
 OOO-Tridentate Bis(phenolate) Ligands: Effective Catalysts for the
 Ring-Opening Polymerization of l-Lactide
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              9416
_journal_page_last               9425
_journal_paper_doi               10.1021/ic1011154
_journal_volume                  49
_journal_year                    2010
_chemical_formula_sum            'C41 H61 Li O4'
_chemical_formula_weight         624.84
_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                 97.082(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.9623(7)
_cell_length_b                   20.8957(7)
_cell_length_c                   10.5572(4)
_cell_measurement_temperature    293(2)
_cell_volume                     3932.3(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 0.978
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'CCD detector'
_diffrn_measurement_method       '\w 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  0.0335
_diffrn_reflns_av_sigmaI/netI    0.0491
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            20869
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.89
_exptl_absorpt_coefficient_mu    0.065
_exptl_absorpt_correction_T_max  0.9992
_exptl_absorpt_correction_T_min  0.9814
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Sheldrick (1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.055
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelpiped
_exptl_crystal_F_000             1368
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.689
_refine_diff_density_min         -0.367
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     419
_refine_ls_number_reflns         7536
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.1226
_refine_ls_R_factor_gt           0.0940
_refine_ls_shift/su_max          0.168
_refine_ls_shift/su_mean         0.019
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.3000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3679
_refine_ls_wR_factor_ref         0.3866
_reflns_number_gt                5322
_reflns_number_total             7536
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic1011154_si_007.cif
_cod_data_source_block           exp_101
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_database_code               4316784