5-Formylsalicylic acid and 5-(benzimidazolium-2-yl)salicylate
Lu, Yu-Bing; Yang, Ping; Huang, Wen-Na; Yang, Yan-Na; Wu, Jian-Zhong; Acta Crystallographica Section C 66 (2010) o596–o599; doi:10.1107/S0108270110044926

data_2017900
_publ_section_title
;
 5-Formylsalicylic acid and 5-(benzimidazolium-2-yl)salicylate
;
_journal_coeditor_code           SK3389
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o596
_journal_page_last               o599
_journal_paper_doi               10.1107/S0108270110044926
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C14 H10 N2 O3'
_chemical_formula_moiety         'C14 H10 N2 O3'
_chemical_formula_sum            'C14 H10 N2 O3'
_chemical_formula_weight         254.24
_chemical_name_common
;
5-(benzimidazolium-2-yl)salicylate
;
_chemical_name_systematic
;
5-(1<i>H</i>-benzimidazol-3-ium-2-yl)-2-hydroxybenzoate
;
_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           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   16.2033(4)
_cell_length_b                   8.1005(2)
_cell_length_c                   18.8425(5)
_cell_measurement_reflns_used    5133
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      23.85
_cell_measurement_theta_min      2.50
_cell_volume                     2473.17(11)
_computing_cell_refinement       'APEX2 (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'APEX2 (Bruker, 2004)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEXII CCD area-detector'
_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  0.0398
_diffrn_reflns_av_sigmaI/netI    0.0281
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            23379
_diffrn_reflns_theta_full        27.88
_diffrn_reflns_theta_max         27.88
_diffrn_reflns_theta_min         2.16
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  0.9806
_exptl_absorpt_correction_T_min  0.9664
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2002)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.366
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1056
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.199
_refine_diff_density_min         -0.179
_refine_ls_extinction_coef       0.0029(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 2008)'
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     174
_refine_ls_number_reflns         2949
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0676
_refine_ls_R_factor_gt           0.0410
_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^)+(0.0442P)^2^+0.3316P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0935
_refine_ls_wR_factor_ref         0.1040
_reflns_number_gt                2007
_reflns_number_total             2949
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sk3389.cif
_cod_data_source_block           II
_cod_database_code               2017900
_cod_database_fobs_code          2017900