Two-component molecular crystals from <i>N</i>-heteroaromatics and nitrobenzoic acids
Hashizume, Daisuke; Iegaki, Masataka; Yasui, Masanori; Iwasaki, Fujiko; Meng, Jiben; Wen, Zhong; Matsuura, Teruo; Acta Crystallographica Section C 57 (2001) 1067–1072; doi:10.1107/S0108270101009118

data_2012220
_publ_section_title
;
 Two-component molecular crystals from <i>N</i>-heteroaromatics and
 nitrobenzoic acids
;
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1067
_journal_page_last               1072
_journal_paper_doi               10.1107/S0108270101009118
_journal_volume                  57
_journal_year                    2001
_chemical_formula_moiety         'C7 H7 N2 + , C7 H4 N O4 -'
_chemical_formula_sum            'C14 H11 N3 O4'
_chemical_formula_weight         285.26
_chemical_melting_point          436.0(10)
_chemical_name_systematic
;
Benzimidazolium 4-nitrobenzoate
;
_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'
_cell_angle_alpha                90
_cell_angle_beta                 94.1400(17)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.8524(5)
_cell_length_b                   7.6666(4)
_cell_length_c                   12.5193(7)
_cell_measurement_reflns_used    22373
_cell_measurement_temperature    297
_cell_measurement_theta_max      30.03
_cell_measurement_theta_min      2.95
_cell_volume                     1326.09(11)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       'PROCESS-AUTO (Rigaku Corporation, 1998)'
_computing_data_reduction
'TEXSAN (Molecular Structure Corporation, 1993)'
_computing_molecular_graphics    'ORTEPIII (Burnett & Johnson, 1996)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      297
_diffrn_detector_area_resol_mean 10
_diffrn_measured_fraction_theta_full .998
_diffrn_measured_fraction_theta_max .998
_diffrn_measurement_device_type  'Rigaku R-AXIS Rapid'
_diffrn_measurement_method       oscillation
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     .71073
_diffrn_reflns_av_R_equivalents  .034
_diffrn_reflns_av_sigmaI/netI    .029
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            23459
_diffrn_reflns_theta_full        30.03
_diffrn_reflns_theta_max         30.03
_diffrn_reflns_theta_min         2.95
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count none
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    .108
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.429
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             592
_exptl_crystal_size_max          .60
_exptl_crystal_size_mid          .38
_exptl_crystal_size_min          .33
_refine_diff_density_max         .22
_refine_diff_density_min         -.19
_refine_ls_extinction_coef       .017(3)
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 1997)'
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         3869
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          .075
_refine_ls_R_factor_gt           .053
_refine_ls_shift/su_max          <0.001
_refine_ls_shift/su_mean         .000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0675P)^2^+0.2721P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         .153
_reflns_number_gt                2856
_reflns_number_total             3869
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ob1039.cif
_cod_data_source_block           II
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '435-437' was changed to '436.0(10)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value '435-437' was changed to '436.0(10)'
- the average value was taken and precision was estimated.

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               2012220
_cod_database_fobs_code          2012220