μ-Oxalato-κ^4^<i>O</i>^1^,<i>O</i>^2^:<i>O</i>^1'^,<i>O</i>^2'^-bis[aqua(2,2'-bipyridine-κ<i>N</i>)(nitrato-κ^2^<i>O</i>,<i>O</i>')lead(II)]
Pan, Gang-Hong; Tang, Jin-Niu; Huang, Zhong-Jing; Li, Long; Zhang, Chun-Mei; Acta Crystallographica Section E 68 (2012) m1310–; doi:10.1107/S1600536812040196

data_2236690
_publ_section_title
;
 \m-Oxalato-\k^4^<i>O</i>^1^,<i>O</i>^2^:<i>O</i>^1'^,<i>O</i>^2'^-bis[aqua(2,2'-bipyridine-\k<i>N</i>)(nitrato-\k^2^<i>O</i>,<i>O</i>')lead(II)]
;
_journal_coeditor_code           WM2667
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m1310
_journal_paper_doi               10.1107/S1600536812040196
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          '[Pb2 (C2 O4) (N O3)2 (C10 H8 N2)2 (H2 O)2]'
_chemical_formula_moiety         'C22 H20 N6 O12 Pb2'
_chemical_formula_sum            'C22 H20 N6 O12 Pb2'
_chemical_formula_weight         974.82
_chemical_name_systematic
;
\m-Oxalato-\k^4^<i>O</i>^1^,<i>O</i>^2^:<i>O</i>^1'^,<i>O</i>^2'^-
bis[aqua(2,2'-bipyridine-\k<i>N</i>)(nitrato-\k^2^<i>O</i>,<i>O</i>')lead(II)]
;
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 91.6870(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.5791(19)
_cell_length_b                   20.6330(14)
_cell_length_c                   6.7649(15)
_cell_measurement_reflns_used    3490
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.25
_cell_measurement_theta_min      2.34
_cell_volume                     1336.5(4)
_computing_cell_refinement       'SAINT (Bruker, 2003)'
_computing_data_collection       'SMART (Bruker, 2003)'
_computing_data_reduction        'SAINT (Bruker, 2003)'
_computing_molecular_graphics    'DIAMOND (Brandenburg, 2009)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker SMART CCD'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0382
_diffrn_reflns_av_sigmaI/netI    0.0432
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            7096
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.97
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    12.656
_exptl_absorpt_correction_T_max  0.1374
_exptl_absorpt_correction_T_min  0.1204
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(<i>SADABS</i>; Bruker, 2003)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.422
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             908
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.26
_refine_diff_density_max         2.683
_refine_diff_density_min         -1.188
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2336
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0358
_refine_ls_R_factor_gt           0.0309
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0350P)^2^+5.1328P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0791
_refine_ls_wR_factor_ref         0.0818
_reflns_number_gt                2082
_reflns_number_total             2336
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            wm2667.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2236690
_cod_database_fobs_code          2236690