A second triclinic polymorph of bis(μ-<i>N</i>-nitroso-<i>N</i>-phenylhydroxylaminato)-κ^3^<i>O</i>,<i>O</i>':<i>O</i>';κ^3^<i>O</i>':<i>O</i>,<i>O</i>'-bis[(<i>N</i>-nitroso-<i>N</i>-phenylhydroxylaminato-κ^2^<i>O</i>,<i>O</i>')lead(II)]
Najafi, Ezzatollah; Amini, Mostafa M.; Ng, Seik Weng; Acta Crystallographica Section E 68 (2012) m791–; doi:10.1107/S1600536812021885

data_2235146
_publ_section_title
;
 A second triclinic polymorph of
 bis(\m-<i>N</i>-nitroso-<i>N</i>-phenylhydroxylaminato)-\k^3^<i>O</i>,<i>O</i>':<i>O</i>';\k^3^<i>O</i>':<i>O</i>,<i>O</i>'-bis[(<i>N</i>-nitroso-<i>N</i>-phenylhydroxylaminato-\k^2^<i>O</i>,<i>O</i>')lead(II)]
;
_journal_coeditor_code           LH5471
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m791
_journal_paper_doi               10.1107/S1600536812021885
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          '[Pb2 (C6 H5 N2 O2)4]'
_chemical_formula_moiety         'C24 H20 N8 O8 Pb2'
_chemical_formula_sum            'C24 H20 N8 O8 Pb2'
_chemical_formula_weight         962.86
_chemical_name_systematic
;
bis(\m-<i>N</i>-nitroso-<i>N</i>-phenylhydroxylaminato)-
\k^3^<i>O</i>,<i>O</i>':<i>O</i>';\k^3^<i>O</i>':<i>O</i>,<i>O</i>'-
bis[(<i>N</i>-nitroso-<i>N</i>-phenylhydroxylaminato-
\k^2^<i>O</i>,<i>O</i>')lead(II)]
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
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_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
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_cell_angle_beta                 77.582(3)
_cell_angle_gamma                86.538(2)
_cell_formula_units_Z            2
_cell_length_a                   8.7579(2)
_cell_length_b                   10.6985(3)
_cell_length_c                   15.3603(6)
_cell_measurement_reflns_used    11683
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.5017
_cell_measurement_theta_min      2.3765
_cell_volume                     1337.31(8)
_computing_cell_refinement       'CrysAlis PRO (Agilent, 2012)'
_computing_data_collection       'CrysAlis PRO (Agilent, 2012)'
_computing_data_reduction        'CrysAlis PRO (Agilent, 2012)'
_computing_molecular_graphics    'X-SEED (Barbour, 2001)'
_computing_publication_material  'publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.4041
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type
'Agilent SuperNova Dual diffractometer with an Atlas detector'
_diffrn_measurement_method       '\w scan'
_diffrn_radiation_monochromator  Mirror
_diffrn_radiation_source         'SuperNova (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0395
_diffrn_reflns_av_sigmaI/netI    0.0399
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            20132
_diffrn_reflns_theta_full        27.56
_diffrn_reflns_theta_max         27.56
_diffrn_reflns_theta_min         2.38
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    12.638
_exptl_absorpt_correction_T_max  0.2530
_exptl_absorpt_correction_T_min  0.1443
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrysAlis PRO; Agilent, 2012)'
_exptl_crystal_colour            'Light brown'
_exptl_crystal_density_diffrn    2.391
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.784
_refine_diff_density_min         -1.671
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     379
_refine_ls_number_reflns         6173
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0287
_refine_ls_R_factor_gt           0.0239
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0248P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0547
_refine_ls_wR_factor_ref         0.0572
_reflns_number_gt                5479
_reflns_number_total             6173
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh5471.cif
_cod_data_source_block           I
_cod_original_cell_volume        1337.31(7)
_cod_database_code               2235146
_cod_database_fobs_code          2235146