Rare-Earth Complexes with Multidentate Tethered Phenoxy-Amidinate Ligands: Synthesis, Structure, and Activity in Ring-Opening Polymerization of Lactide
Sinenkov, Mikhail; Kirillov, Evgeny; Roisnel, Thierry; Fukin, Georgy; Trifonov, Alexander; Carpentier, Jean-François; Organometallics 30 (2011) 5509–; doi:10.1021/om200786u

data_4065423
_publ_section_title
;
 Rare-Earth Complexes with Multidentate Tethered Phenoxy-Amidinate
 Ligands: Synthesis, Structure, and Activity in Ring-Opening
 Polymerization of Lactide
;
_journal_issue                   20
_journal_name_full               Organometallics
_journal_page_first              5509
_journal_paper_doi               10.1021/om200786u
_journal_volume                  30
_journal_year                    2011
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C54 H104 N6 O2 Si4 Y2'
_chemical_formula_sum            'C54 H104 N6 O2 Si4 Y2'
_chemical_formula_weight         1159.61
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2009-10-14T09:49:47-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 96.778(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   18.4284(16)
_cell_length_b                   14.7704(11)
_cell_length_c                   27.969(2)
_cell_measurement_reflns_used    8127
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      20.48
_cell_measurement_theta_min      2.21
_cell_measurement_wavelength     0.71073
_cell_volume                     7559.8(10)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SAINT'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'APEXII, Bruker-AXS'
_diffrn_measurement_method       'CCD rotation images, thin slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1199
_diffrn_reflns_av_unetI/netI     0.191
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            72687
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.93
_exptl_absorpt_coefficient_mu    1.625
_exptl_absorpt_correction_T_max  0.784
_exptl_absorpt_correction_T_min  0.549
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
  [Sheldrick, G.M. (2002). SADABS Bruker AXS Inc., Madison, Wisconsin, USA]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.019
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2480
_exptl_crystal_size_max          0.47
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.15
_platon_squeeze_details
;
;
_refine_diff_density_max         1.234
_refine_diff_density_min         -0.969
_refine_diff_density_rms         0.095
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.937
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     645
_refine_ls_number_reflns         17233
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.937
_refine_ls_R_factor_all          0.1556
_refine_ls_R_factor_gt           0.069
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0782P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1513
_refine_ls_wR_factor_ref         0.1711
_reflns_number_gt                8168
_reflns_number_total             17233
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200786u_si_001.cif
_cod_data_source_block           6
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4065423