Highly Stereoselective 1,3-Dipolar Cycloaddition of Nitrones to (Nitrile)2PtIISpecies Furnishing Diastereomerically Pure 2,3-Dihydro-1,2,4-oxadiazole Ligands
Bokach, Nadezhda A.; Balova, Irina A.; Haukka, Matti; Kukushkin, Vadim Yu.; Organometallics 30 (2011) 595–; doi:10.1021/om100957b

data_4063814
_publ_section_title
;
 Highly Stereoselective 1,3-Dipolar Cycloaddition of Nitrones to
 (Nitrile)2PtIISpecies Furnishing Diastereomerically Pure
 2,3-Dihydro-1,2,4-oxadiazole Ligands
;
_journal_issue                   3
_journal_name_full               Organometallics
_journal_page_first              595
_journal_paper_doi               10.1021/om100957b
_journal_volume                  30
_journal_year                    2011
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C32 H52 Cl2 N4 O4 Pt'
_chemical_formula_sum            'C32 H52 Cl2 N4 O4 Pt'
_chemical_formula_weight         822.77
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_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                   7.39480(10)
_cell_length_b                   16.1571(3)
_cell_length_c                   29.4684(6)
_cell_measurement_reflns_used    8351
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     3520.84(11)
_computing_cell_refinement       'EvalCCD (Duisenberg, 2003)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2008)'
_computing_data_reduction        'EvalCCD (Duisenberg, 2003)'
_computing_molecular_graphics    'Diamond v.3.2e (Brandenburg, 2010)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans and \w scans with \k offset'
_diffrn_radiation_monochromator  'horizontally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0402
_diffrn_reflns_av_sigmaI/netI    0.0603
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            30341
_diffrn_reflns_theta_full        27.51
_diffrn_reflns_theta_max         27.51
_diffrn_reflns_theta_min         2.52
_exptl_absorpt_coefficient_mu    4.177
_exptl_absorpt_correction_T_max  0.7847
_exptl_absorpt_correction_T_min  0.6148
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.552
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1664
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.06
_refine_diff_density_max         1.147
_refine_diff_density_min         -0.936
_refine_diff_density_rms         0.120
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.006(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     398
_refine_ls_number_reflns         8055
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0411
_refine_ls_R_factor_gt           0.0287
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0453
_refine_ls_wR_factor_ref         0.0481
_reflns_number_gt                6854
_reflns_number_total             8055
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om100957b_si_002.cif
_cod_data_source_block           7
_cod_database_code               4063814