Synthesis and Characterization of Salalen Lanthanide Complexes and Their Application in the Polymerization ofrac-Lactide
Nie, Kun; Gu, Weikai; Yao, Yingming; Zhang, Yong; Shen, Qi; Organometallics 32 (2013) 2608–; doi:10.1021/om4001023

data_4080704
_publ_section_title
;
 Synthesis and Characterization of Salalen Lanthanide Complexes and Their
 Application in the Polymerization ofrac-Lactide
;
_journal_issue                   9
_journal_name_full               Organometallics
_journal_page_first              2608
_journal_paper_doi               10.1021/om4001023
_journal_volume                  32
_journal_year                    2013
_chemical_formula_moiety         'C80 H114 N4 O6 Sm2, C4 H8 O'
_chemical_formula_sum            'C84 H122 N4 O7 Sm2'
_chemical_formula_weight         1600.56
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                108.590(5)
_cell_angle_beta                 104.090(5)
_cell_angle_gamma                107.369(5)
_cell_formula_units_Z            1
_cell_length_a                   12.5937(7)
_cell_length_b                   13.8280(7)
_cell_length_c                   14.6265(7)
_cell_measurement_reflns_used    6575
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      21.8710
_cell_measurement_theta_min      3.1400
_cell_volume                     2136.6(3)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalStructure
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 10.3818
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini '
_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  0.0961
_diffrn_reflns_av_sigmaI/netI    0.0969
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            33077
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.96
_exptl_absorpt_coefficient_mu    1.411
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.85654
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.244
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             834
_exptl_crystal_size_max          0.4000
_exptl_crystal_size_mid          0.2000
_exptl_crystal_size_min          0.1500
_refine_diff_density_max         1.761
_refine_diff_density_min         -0.806
_refine_diff_density_rms         0.111
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.990
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     395
_refine_ls_number_reflns         7927
_refine_ls_number_restraints     8
_refine_ls_restrained_S_all      0.994
_refine_ls_R_factor_all          0.0922
_refine_ls_R_factor_gt           0.0601
_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^)+(0.0738P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1313
_refine_ls_wR_factor_ref         0.1439
_reflns_number_gt                5724
_reflns_number_total             7927
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om4001023_si_001.cif
_cod_data_source_block           complex5
_cod_original_cell_volume        2136.62(19)
_cod_database_code               4080704