Poly[bis(<i>p</i>-nitrosalicylato-<i>O</i>:<i>O</i>')disilver(I)-<i>O</i>^3^:<i>Ag</i>';<i>Ag</i>:<i>O</i>^3'^]
Tahir, M. N.; Ülkü, D.; Muvsumov, E. M.; Acta Crystallographica Section C 52 (1996) 593–595; doi:10.1107/S010827019501314X

data_2004583
_publ_section_title
Poly[bis(<i>p</i>-nitrosalicylato-<i>O</i>:<i>O</i>')disilver(I)-<i>O</i>^3^:<i>Ag</i>';<i>Ag</i>:<i>O</i>^3'^]
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              593
_journal_page_last               595
_journal_paper_doi               10.1107/S010827019501314X
_journal_volume                  52
_journal_year                    1996
_chemical_formula_analytical     '(NO2 OH C6H3 CO2 Ag)2'
_chemical_formula_iupac          '[Ag2 (C7 H4 N1 O5)2]'
_chemical_formula_moiety         '(C7 H4 Ag1 N1 O5)2'
_chemical_formula_structural     'C7 H4 N O5 Ag 1+'
_chemical_formula_sum            'C14 H8 Ag2 N2 O10'
_chemical_formula_weight         579.968
_chemical_name_systematic
;
catena-[bis(p-nitrosalicylato)disilver(I)]
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_cell_angle_alpha                90.0
_cell_angle_beta                 93.050(10)
_cell_angle_gamma                90.0
_cell_formula_units_Z            2
_cell_length_a                   3.6140(10)
_cell_length_b                   31.543(2)
_cell_length_c                   6.7500(10)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    295
_cell_measurement_theta_max      18.83
_cell_measurement_theta_min      15.19
_cell_volume                     768.4(2)
_computing_cell_refinement       'CAD-4 Software'
_computing_data_collection       'CAD-4 Software (Enraf-Nonius, 1989)'
_computing_data_reduction        'MolEN (Fair, 1990)'
_computing_molecular_graphics    'ORTEPII (Johnson, 1976)'
_computing_publication_material  MolEN
_computing_structure_refinement  'MolEN LSFM'
_computing_structure_solution    'Perschar & Schenk (1987) '
_diffrn_ambient_temperature      295
_diffrn_measurement_device       'Enraf-Nonius CAD-4'
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.137
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       35
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            1613
_diffrn_reflns_theta_max         26
_diffrn_reflns_theta_min         1
_diffrn_standards_decay_%        4.4
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    2.62
_exptl_absorpt_correction_T_max  0.999
_exptl_absorpt_correction_T_min  0.705
_exptl_absorpt_correction_type
'empirical via \y scans (North, Phillips & Mathews, 1968)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.51
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    none
_exptl_crystal_description       needle
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.02
_refine_diff_density_min         -0.77
_refine_ls_extinction_coef       none
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_obs   0.70
_refine_ls_hydrogen_treatment
;
All H atoms were located geometrically 0.95\%A from their
attached atom and a riding model was used.
;
_refine_ls_matrix_type           full
_refine_ls_number_constraints    4
_refine_ls_number_parameters     127
_refine_ls_number_reflns         631
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.1657
_refine_ls_R_factor_obs          0.054
_refine_ls_shift/esd_max         <0.0001
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme
;
A modified unit-weight scheme was used:
if F>=threshold then w = [threshold/F]^2^ and
if F^2^<cutoff x \sF^2^ then w = 0
(where threshold = 24, cutoff = 6.2)
;
_refine_ls_wR_factor_obs         0.065
_reflns_number_observed          833
_reflns_number_total             1383
_reflns_observed_criterion       I>3\s(I)
_cod_data_source_file            bm1026.cif
_cod_data_source_block           TOZ
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2004583