Coordination polymers with 4,4'-bipyrimidine. Using a combination of endo- and exodentate donors to build a one-dimensional Ag(I) ladder and a heterometallic Co(II)Ag(I)2 network.
Beauchamp, Derek A.; Loeb, Stephen J.; Dalton transactions (Cambridge, England : 2003)  (2007) 4760–4762; doi:10.1039/b711960g

data_7006289
_publ_section_title
;
 Coordination polymers with 4,4'-bipyrimidine. Using a combination of
 endo- and exodentate donors to build a one-dimensional Ag(I) ladder
 and a heterometallic Co(II)Ag(I)2 network.
;
_journal_issue                   42
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4760
_journal_page_last               4762
_journal_paper_doi               10.1039/b711960g
_journal_year                    2007
_chemical_formula_sum            'C26 H27 Ag2 Cl4 Co N13 O19'
_chemical_formula_weight         1242.08
_chemical_name_systematic
;
?
;
_space_group_IT_number           57
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2c 2b'
_symmetry_space_group_name_H-M   'P b c m'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.001(7)
_cell_length_b                   14.016(7)
_cell_length_c                   20.654(10)
_cell_measurement_temperature    173(2)
_cell_volume                     4343(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL XPREP'
_computing_molecular_graphics    'Bruker SHELXTL XP'
_computing_publication_material  'Bruker SHELXTL XCIF'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.968
_diffrn_measured_fraction_theta_max 0.968
_diffrn_measurement_device_type  'Bruker APEX CCD'
_diffrn_measurement_method       'hemisphere 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  0.0519
_diffrn_reflns_av_sigmaI/netI    0.0327
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            23176
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.99
_diffrn_standards_decay_%        0
_diffrn_standards_number         100
_exptl_absorpt_coefficient_mu    1.606
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.603937
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.900
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2460
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.16
_refine_diff_density_max         1.869
_refine_diff_density_min         -1.013
_refine_diff_density_rms         0.180
_refine_ls_extinction_coef       0.0002(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.299
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         3822
_refine_ls_number_restraints     28
_refine_ls_restrained_S_all      1.300
_refine_ls_R_factor_all          0.1049
_refine_ls_R_factor_gt           0.1037
_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^)+(0.0695P)^2^+69.9138P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2461
_refine_ls_wR_factor_ref         0.2468
_reflns_number_gt                3742
_reflns_number_total             3822
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b711960g.txt
_cod_data_source_block           dab55r
_cod_original_cell_volume        4342(4)
_cod_original_sg_symbol_H-M      Pbcm
_cod_database_code               7006289