Poly[disilver(I)(<i>Ag</i>—<i>Ag</i>)-μ-4-chlorobenzoato-μ-piperazine]
Yang, Song; Zou, Ying; Zhu, Hai-liang; Acta Crystallographica Section E 61 (2005) m219–m220; doi:10.1107/S1600536804033732

data_2205147
_publ_section_title
;
 Poly[disilver(I)(<i>Ag</i>---<i>Ag</i>)-\m-4-chlorobenzoato-\m-piperazine]
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m219
_journal_page_last               m220
_journal_paper_doi               10.1107/S1600536804033732
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          '[Ag2 (C7 H4 Cl O2)2 (C4 H10 N2)]'
_chemical_formula_moiety         'C18 H18 Ag2 Cl2 N2 O4'
_chemical_formula_sum            'C18 H18 Ag2 Cl2 N2 O4'
_chemical_formula_weight         612.98
_chemical_name_systematic
;
Poly[disilver(I)(Ag---Ag)-\m-4-chlorobenzoato-\m-piperazine]
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.818(4)
_cell_length_b                   7.422(3)
_cell_length_c                   24.425(9)
_cell_measurement_reflns_used    3794
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      26.257
_cell_measurement_theta_min      2.869
_cell_volume                     2142.4(14)
_computing_cell_refinement       'SAINT (Bruker, 2002)'
_computing_data_collection       'SMART (Bruker, 2002)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Bruker, 2002)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type
'Bruker SMART APEX area-detector diffractometer'
_diffrn_measurement_method       '\f and \w 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  0.0446
_diffrn_reflns_av_sigmaI/netI    0.0411
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            10524
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         1.67
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.103
_exptl_absorpt_correction_T_max  0.8668
_exptl_absorpt_correction_T_min  0.5526
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2002)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.900
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1200
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.561
_refine_diff_density_min         -0.687
_refine_ls_abs_structure_details
'Flack (1983) parameter from 1799 Friedel pairs'
_refine_ls_abs_structure_Flack   0.00(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     254
_refine_ls_number_reflns         3736
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0505
_refine_ls_R_factor_gt           0.0351
_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^)+(0.0551P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0833
_refine_ls_wR_factor_ref         0.1006
_reflns_number_gt                2996
_reflns_number_total             3736
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sj6025.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      Pna21
_cod_database_code               2205147
_cod_database_fobs_code          2205147