Crystal structure of bis(3-aminopyridinium)1,5-naphthalene-disulfonate dihydrate, [(C5H7N2)2][C10H6O6S2] · 2H2O
Zi-Liang Wang; Lin-Heng Wei; Zeitschrift für Kristallographie - New Crystal Structures 223 (2008) 281–; doi:

data_8102302
_publ_section_title
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 Crystal structure of bis(3-aminopyridinium)1,5-naphthalene-disulfonate
 dihydrate, [(C5H7N2)2][C10H6O6S2] &#x00B7; 2H2O
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_journal_issue                   3
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              281
_journal_volume                  223
_journal_year                    2008
_chemical_formula_moiety         'C10 H6 O6 S2, 2(C5 H7 N2), 2(H2 O)'
_chemical_formula_sum            'C20 H24 N4 O8 S2'
_chemical_formula_weight         512.55
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                   12.2909(4)
_cell_length_b                   12.6265(4)
_cell_length_c                   14.6083(5)
_cell_measurement_temperature    296(2)
_cell_volume                     2267.08(13)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART Apex CCD area-detector'
_diffrn_measurement_method       \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  0.0244
_diffrn_reflns_av_sigmaI/netI    0.0114
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_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            22187
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         2.70
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.291
_exptl_absorpt_correction_T_max  0.9771
_exptl_absorpt_correction_T_min  0.9577
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.502
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1072
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.303
_refine_diff_density_min         -0.286
_refine_diff_density_rms         0.039
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     192
_refine_ls_number_reflns         2221
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0366
_refine_ls_R_factor_gt           0.0307
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0475P)^2^+0.7580P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0857
_refine_ls_wR_factor_ref         0.0893
_reflns_number_gt                1940
_reflns_number_total             2221
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            1267-2300.cff
_cod_data_source_block           zl
_cod_depositor_comments
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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.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN' changed
to 'multi-scan' 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 1555 2011-01-17 13:19:09Z saulius 
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_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               8102302