Highly Active Yttrium Catalysts for the Ring-Opening Polymerization of ε-Caprolactone and δ-Valerolactone
Wang, Xinke; Brosmer, Jonathan L.; Thevenon, Arnaud; Diaconescu, Paula L.; Organometallics 34 (2015) 4700–; doi:10.1021/acs.organomet.5b00442

data_4087636
_publ_section_title
;
 Highly Active Yttrium Catalysts for the Ring-Opening Polymerization of
 \e-Caprolactone and \d-Valerolactone
;
_journal_issue                   19
_journal_name_full               Organometallics
_journal_page_first              4700
_journal_paper_doi               10.1021/acs.organomet.5b00442
_journal_volume                  34
_journal_year                    2015
_chemical_formula_sum            'C48 H70 Fe K O4 S2 Y'
_chemical_formula_weight         959.02
_space_group_IT_number           20
_space_group_name_Hall           'C 2c 2'
_space_group_name_H-M_alt        'C 2 2 21'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'C 2 2 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.145(5)
_cell_length_b                   16.399(5)
_cell_length_c                   18.230(6)
_cell_measurement_temperature    100(2)
_cell_volume                     4827(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.671
_diffrn_measured_fraction_theta_max 0.671
_diffrn_measurement_device_type  'Bruker APEX-II'
_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  0.0358
_diffrn_reflns_av_sigmaI/netI    0.0586
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            13283
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.71
_exptl_absorpt_coefficient_mu    1.710
_exptl_absorpt_correction_T_max  0.7261
_exptl_absorpt_correction_T_min  0.6745
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Bruker AXS area detector scaling and absorption correction'
_exptl_crystal_density_diffrn    1.320
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2024
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.877
_refine_diff_density_min         -0.671
_refine_diff_density_rms         0.090
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.029(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     230
_refine_ls_number_reflns         2839
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.0603
_refine_ls_R_factor_gt           0.0569
_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^)+(0.0932P)^2^+14.9927P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1509
_refine_ls_wR_factor_ref         0.1524
_reflns_number_gt                2659
_reflns_number_total             2839
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om5b00442_si_002.cif
_cod_data_source_block           pld1249sad
_cod_original_cell_volume        4826(3)
_cod_original_sg_symbol_H-M      C2221
_cod_database_code               4087636