N-oxide-4,4′-bipyridine, a forgotten ligand in coordination chemistry: structure‒photoluminescence property relationships in 2D and 1D lead-coordination polymers
Toma, Oksana; Mercier, Nicolas; Bouilland, Mathilde; Allain, Magali; CrystEngComm 14 (2012) 7844–; doi:10.1039/c2ce26237a

data_7208820
_publ_section_title
;
 N-oxide-4,4&#x2032;-bipyridine, a forgotten ligand in coordination
 chemistry: structure--photoluminescence property relationships in 2D and
 1D lead-coordination polymers
;
_journal_issue                   23
_journal_name_full               CrystEngComm
_journal_page_first              7844
_journal_paper_doi               10.1039/c2ce26237a
_journal_volume                  14
_journal_year                    2012
_chemical_formula_sum            'C20 H18 Cl2 N6 O8 Pb'
_chemical_formula_weight         748.5
_chemical_name_systematic
;
?
;
_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_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2012-07-06T18:24:58-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 97.55(1)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   16.847(1)
_cell_length_b                   4.0866(5)
_cell_length_c                   35.249(3)
_cell_measurement_temperature    293(2)
_cell_volume                     2405.7(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.958
_diffrn_measured_fraction_theta_max 0.958
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  'horizontally mounted graphite crystal'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0637
_diffrn_reflns_av_unetI/netI     0.091
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       49
_diffrn_reflns_limit_l_min       -48
_diffrn_reflns_number            13502
_diffrn_reflns_theta_full        30.06
_diffrn_reflns_theta_max         30.06
_diffrn_reflns_theta_min         3.99
_exptl_absorpt_coefficient_mu    7.294
_exptl_absorpt_correction_T_max  0.528
_exptl_absorpt_correction_T_min  0.405
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS (Sheldrick, Bruker, 2000))'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.066
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1440
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.07
_refine_diff_density_max         1.283
_refine_diff_density_min         -1.883
_refine_diff_density_rms         0.17
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     168
_refine_ls_number_reflns         3392
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0856
_refine_ls_R_factor_gt           0.0399
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0232P)^2^+2.7105P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0617
_refine_ls_wR_factor_ref         0.0685
_reflns_number_gt                2294
_reflns_number_total             3392
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce26237a.txt
_cod_data_source_block           2
_cod_original_cell_volume        2406.0(4)
_cod_database_code               7208820