Synthesis of amine-bridged bis(phenolate) rare-earth metal aryloxides and their catalytic performances for the ring-opening polymerization of L-lactic acid O-carboxyanhydride and L-lactide
Ouyang, Hao; Nie, Kun; Yuan, Dan; Yao, Yingming; Dalton Trans.  (2017) –; doi:10.1039/C7DT03001K

data_7044565
_publ_section_title
;
 Synthesis of amine-bridged bis(phenolate) rare-earth metal aryloxides and
 their catalytic performances for the ring-opening polymerization of
 L-lactic acid O-carboxyanhydride and L-lactide
;
_journal_name_full               'Dalton Trans.'
_journal_paper_doi               10.1039/C7DT03001K
_journal_year                    2017
_chemical_formula_moiety         'C69 H85 La N2 O5'
_chemical_formula_sum            'C69 H85 La N2 O5'
_chemical_formula_weight         1161.29
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2017-10-24 deposited with the CCDC.
2017-10-26 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 101.496(2)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   15.1660(3)
_cell_length_b                   33.8032(8)
_cell_length_c                   24.5524(6)
_cell_measurement_reflns_used    18954
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.6960
_cell_measurement_theta_min      3.1030
_cell_volume                     12334.5(5)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.32 (release 02-08-2013 CrysAlis171 .NET)
(compiled Aug  2 2013,16:46:58)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.32 (release 02-08-2013 CrysAlis171 .NET)
(compiled Aug  2 2013,16:46:58)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.32 (release 02-08-2013 CrysAlis171 .NET)
(compiled Aug  2 2013,16:46:58)
;
_computing_molecular_graphics    'SHELXP-2016/6 (Sheldrick, 2016)'
_computing_publication_material  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXS-2016/6 (Sheldrick, 2016)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0414
_diffrn_reflns_av_unetI/netI     0.0531
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       39
_diffrn_reflns_limit_k_min       -42
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            74083
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.373
_diffrn_reflns_theta_min         2.946
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.743
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.87430
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.32 (release 02-08-2013 CrysAlis171 .NET)
(compiled Aug  2 2013,16:46:58)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.251
_exptl_crystal_description       block
_exptl_crystal_F_000             4880
_exptl_crystal_size_max          0.750
_exptl_crystal_size_mid          0.600
_exptl_crystal_size_min          0.400
_refine_diff_density_max         0.962
_refine_diff_density_min         -0.755
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1471
_refine_ls_number_reflns         25165
_refine_ls_number_restraints     46
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0692
_refine_ls_R_factor_gt           0.0447
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0359P)^2^+11.8607P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0936
_refine_ls_wR_factor_ref         0.1055
_reflns_Friedel_coverage         0.000
_reflns_number_gt                19002
_reflns_number_total             25165
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7dt03001k2.cif
_cod_data_source_block           complex3
_cod_original_cell_volume        12334.6(5)
_cod_database_code               7044565
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.606
_shelx_estimated_absorpt_t_max   0.756
_shelx_res_checksum              48478