A new polymorph of poly[bis(μ~2~-perchlorato-κ^2^<i>O</i>:<i>O</i>')(2,2':6',2''-terpyridine-κ^3^<i>N</i>,<i>N</i>',<i>N</i>'')lead(II)] with a greatly extended chain repeat distance
Blake, Alexander J.; Caltagirone, Claudia; Lippolis, Vito; Shamsipur, Mojtaba; Acta Crystallographica Section C 65 (2009) m33–m36; doi:10.1107/S0108270108042236

data_2016921
_publ_section_title
;A new polymorph of
 poly[bis(\m~2~-perchlorato-\k^2^<i>O</i>:<i>O</i>')(2,2':6',2''-terpyridine-\k^3^<i>N</i>,<i>N</i>',<i>N</i>'')lead(II)]
 with a greatly extended chain repeat distance
;
_journal_coeditor_code           FG3072
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              m33
_journal_page_last               m36
_journal_paper_doi               10.1107/S0108270108042236
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          '[Pb (Cl O4)2 (C15 H11 N3)]'
_chemical_formula_moiety         'C15 H11 Cl2 N3 O8 Pb'
_chemical_formula_sum            'C15 H11 Cl2 N3 O8 Pb'
_chemical_formula_weight         639.36
_chemical_name_systematic
;
poly[bis(\m~2~-perchlorato-\k^2^<i>O</i>:<i>O</i>')(2,2':6',2''-terpyridine-
\k^3^<i>N</i>,<i>N</i>',<i>N</i>'')lead(II)]
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           'enCIFer editing of SHELXL97 CIF output'
_cell_angle_alpha                90.00
_cell_angle_beta                 98.671(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            20
_cell_length_a                   25.440(4)
_cell_length_b                   16.333(3)
_cell_length_c                   21.916(4)
_cell_measurement_reflns_used    2817
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.9
_cell_measurement_theta_min      2.5
_cell_volume                     9002(3)
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction
'SAINT (Bruker, 2001), SHELXTL (Sheldrick, 2008)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
;
enCIFer (Allen <i>et al.</i>,  2004), PLATON (Spek, 2003),
publCIF (Westrip,
2008)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker SMART APEX CCD area-detector'
_diffrn_measurement_method       omega
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.052
_diffrn_reflns_av_sigmaI/netI    0.074
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            27358
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.49
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    9.721
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.514
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.359
_exptl_crystal_description       column
_exptl_crystal_F_000             6040
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         2.07
_refine_diff_density_min         -2.43
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.03
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     655
_refine_ls_number_reflns         8832
_refine_ls_number_restraints     220
_refine_ls_restrained_S_all      1.02
_refine_ls_R_factor_all          0.0935
_refine_ls_R_factor_gt           0.0448
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s\^2\^(Fo\^2\^)+(0.027P)\^2\^+69.73P] where P=(Fo\^2\^+2Fc\^2\^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0999
_refine_ls_wR_factor_ref         0.126
_reflns_number_gt                4705
_reflns_number_total             8832
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            fg3072.cif
_cod_data_source_block           I
_cod_original_cell_volume        9002(4)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2016921
_cod_database_fobs_code          2016921