Platinum(II)-Complexed Tetrahydroimidazo[1,2-b][1,2,4]oxadiazoles Derived from Metal-Mediated 1,3-Dipolar Cycloaddition. Novel Type of Heterocycles, Which Do Not Exist without the Metal Center
Bokach, Nadezhda A.; Kuznetsov, Maxim L.; Haukka, Matti; Ovcharenko, Victor I.; Tretyakov, Eugeny V.; Kukushkin, Vadim Yu.; Organometallics 28 (2009) 1406–; doi:10.1021/om800963d

data_4068580
_publ_section_title
;
 Platinum(II)-Complexed Tetrahydroimidazo[1,2-b][1,2,4]oxadiazoles Derived
 from Metal-Mediated 1,3-Dipolar Cycloaddition. Novel Type of
 Heterocycles, Which Do Not Exist without the Metal Center
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              1406
_journal_paper_doi               10.1021/om800963d
_journal_volume                  28
_journal_year                    2009
_chemical_formula_moiety         'C20 H40 Cl2 N8 O2 Pt'
_chemical_formula_sum            'C20 H40 Cl2 N8 O2 Pt'
_chemical_formula_weight         690.59
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.330(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.8650(2)
_cell_length_b                   12.4316(4)
_cell_length_c                   20.0399(6)
_cell_measurement_reflns_used    13817
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.03
_cell_measurement_theta_min      1.00
_cell_volume                     2690.27(13)
_computing_cell_refinement       'Denzo/Scalepack (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction        'Denzo/Scalepack (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'Diamond v.3.1f (Brandenburg, 2008)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_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     0.71073
_diffrn_reflns_av_R_equivalents  0.0499
_diffrn_reflns_av_sigmaI/netI    0.0370
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            55769
_diffrn_reflns_theta_full        29.00
_diffrn_reflns_theta_max         29.00
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    5.447
_exptl_absorpt_correction_T_max  0.6887
_exptl_absorpt_correction_T_min  0.4578
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS v.2.10 (Sheldrick, 2003)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.705
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1376
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.07
_refine_diff_density_max         7.805
_refine_diff_density_min         -3.035
_refine_diff_density_rms         0.201
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.167
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     310
_refine_ls_number_reflns         7082
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.167
_refine_ls_R_factor_all          0.0728
_refine_ls_R_factor_gt           0.0572
_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^)+(0.0000P)^2^+46.6745P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1156
_refine_ls_wR_factor_ref         0.1215
_reflns_number_gt                5939
_reflns_number_total             7082
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om800963d_si_002.cif
_cod_data_source_block           trans_4
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4068580