4,4'-(2,6-Dihydroxynaphthalene-1,5-diyldimethylene)dipyridinium bis(perchlorate)
Zhu, Wei-Feng; Xing, Zheng; Acta Crystallographica Section E 64 (2008) o1173–; doi:10.1107/S1600536808015092

data_2218567
_publ_section_title
;
 4,4'-(2,6-Dihydroxynaphthalene-1,5-diyldimethylene)dipyridinium
 bis(perchlorate)
;
_journal_coeditor_code           WN2262
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1173
_journal_paper_doi               10.1107/S1600536808015092
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C22 H20 N2 O2 2+, 2Cl O4 -'
_chemical_formula_moiety         'C22 H20 N2 O2 2+, 2(Cl O4 -)'
_chemical_formula_sum            'C22 H20 Cl2 N2 O10'
_chemical_formula_weight         543.30
_chemical_name_systematic
;
4,4'-(2,6-Dihydroxynaphthalene-1,5-diyldimethylene)dipyridinium
bis(perchlorate)
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 96.767(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   4.9587(4)
_cell_length_b                   13.0399(11)
_cell_length_c                   17.8291(16)
_cell_measurement_reflns_used    3755
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      2.78
_cell_volume                     1144.82(17)
_computing_cell_refinement       'SAINT (Bruker, 2000)'
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART APEX 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  0.0226
_diffrn_reflns_av_sigmaI/netI    0.0258
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            6156
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.78
_exptl_absorpt_coefficient_mu    0.347
_exptl_absorpt_correction_T_max  0.988
_exptl_absorpt_correction_T_min  0.925
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2000)'
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.576
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       tabular
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.460
_refine_diff_density_min         -0.270
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     168
_refine_ls_number_reflns         2011
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0732
_refine_ls_R_factor_gt           0.0587
_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^)+(0.0742P)^2^+0.8634P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1437
_refine_ls_wR_factor_ref         0.1512
_reflns_number_gt                1610
_reflns_number_total             2011
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            wn2262.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 'Monoclinic' changed to 'monoclinic'
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      'P 21/c'
_cod_database_code               2218567
_cod_database_fobs_code          2218567