Bis[μ-1-(4-pyridylmethyl)-1<i>H</i>-imidazole]disilver(I) dinitrate
Jun-Ping Xiao; Qing-Xiang Zhou; Jia-Hongwen Tu; Acta Crystallographica Section E 63 (2007) m2371–m2371; doi:10.1107/S1600536807040032

data_2215081
_publ_section_title
;
 Bis[\m-1-(4-pyridylmethyl)-1<i>H</i>-imidazole]disilver(I) dinitrate
;
_journal_coeditor_code           ER2033
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m2371
_journal_page_last               m2371
_journal_paper_doi               10.1107/S1600536807040032
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          '[Ag2 (C9 H9 N3)2] (N O3)2'
_chemical_formula_moiety         'C18 H18 Ag2 N6 2+ , 2N O3 -'
_chemical_formula_sum            'C18 H18 Ag2 N8 O6'
_chemical_formula_weight         658.14
_chemical_name_systematic
;
Bis[\m-1-(4-pyridylmethyl)-1H-imidazole]disilver(I) dinitrate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 92.915(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   5.4170(9)
_cell_length_b                   13.020(2)
_cell_length_c                   15.648(3)
_cell_measurement_reflns_used    3520
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      27.65
_cell_measurement_theta_min      2.61
_cell_volume                     1102.2(3)
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Sheldrick, 2001)'
_diffrn_ambient_temperature      291(2)
_diffrn_detector_area_resol_mean 10
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Bruker SMART 1K CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0221
_diffrn_reflns_av_sigmaI/netI    0.0201
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            6892
_diffrn_reflns_theta_full        25.49
_diffrn_reflns_theta_max         25.49
_diffrn_reflns_theta_min         2.61
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.831
_exptl_absorpt_correction_T_max  0.7201
_exptl_absorpt_correction_T_min  0.5867
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2001)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.983
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.854
_refine_diff_density_min         -0.500
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2024
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0333
_refine_ls_R_factor_gt           0.0293
_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^)+(0.0546P)^2^+0.4881P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0803
_refine_ls_wR_factor_ref         0.0839
_reflns_number_gt                1809
_reflns_number_total             2024
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            er2033.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2215081
_cod_database_fobs_code          2215081