Asymmetric Epoxidation of Unsaturated Ketones Catalyzed by Heterobimetallic Rare Earth-Lithium Complexes Bearing Phenoxy-Functionalized Chiral Diphenylprolinolate Ligand.
Qian, Qinqin; Tan, Yufang; Zhao, Bei; Feng, Tao; Shen, Qi; Yao, Yingming; Organic letters 16 (2014) 4516–; doi:10.1021/ol5020398

data_1517428
_publ_section_title
;
 Asymmetric Epoxidation of Unsaturated Ketones Catalyzed by
 Heterobimetallic Rare Earth-Lithium Complexes Bearing
 Phenoxy-Functionalized Chiral Diphenylprolinolate Ligand.
;
_journal_issue                   17
_journal_name_full               'Organic letters'
_journal_page_first              4516
_journal_paper_doi               10.1021/ol5020398
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety
'C24 H48 Cl O6 Li2, C64 H78 N2 O4 Yb, C4 H8 O'
_chemical_formula_sum            'C92 H134 Cl Li2 N2 O11 Yb'
_chemical_formula_weight         1666.38
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 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                   17.4299(11)
_cell_length_b                   17.8218(10)
_cell_length_c                   28.9190(16)
_cell_measurement_reflns_used    29039
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     8983.2(9)
_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      223(2)
_diffrn_detector_area_resol_mean 14.63
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Rigaku Saturn'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0514
_diffrn_reflns_av_sigmaI/netI    0.0899
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            32741
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         3.04
_exptl_absorpt_coefficient_mu    1.127
_exptl_absorpt_correction_T_max  0.578
_exptl_absorpt_correction_T_min  0.409
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.232
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3524
_exptl_crystal_size_max          0.70
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.25
_refine_diff_density_max         1.193
_refine_diff_density_min         -0.981
_refine_diff_density_rms         0.075
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.016(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     966
_refine_ls_number_reflns         16299
_refine_ls_number_restraints     216
_refine_ls_restrained_S_all      1.067
_refine_ls_R_factor_all          0.0578
_refine_ls_R_factor_gt           0.0500
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0291P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0958
_refine_ls_wR_factor_ref         0.1018
_reflns_number_gt                14600
_reflns_number_total             16299
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol5020398_si_002.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
'Adding full bibliography for 1517428--1517431.cif.'
_cod_database_code               1517428