2-Amino-5-methylpyridinium 4-hydroxybenzoate
Hemamalini, Madhukar; Fun, Hoong-Kun; Acta Crystallographica Section E 66 (2010) o936–o937; doi:10.1107/S1600536810009396

data_2225685
_publ_section_title
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 2-Amino-5-methylpyridinium 4-hydroxybenzoate
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_journal_coeditor_code           RZ2424
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o936
_journal_page_last               o937
_journal_paper_doi               10.1107/S1600536810009396
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C6 H9 N2 +, C7 H5 O3 -'
_chemical_formula_moiety         'C6 H9 N2 +, C7 H5 O3 -'
_chemical_formula_sum            'C13 H14 N2 O3'
_chemical_formula_weight         246.26
_chemical_name_systematic
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2-Amino-5-methylpyridinium 4-hydroxybenzoate
;
_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                 108.3970(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.9562(6)
_cell_length_b                   8.7876(4)
_cell_length_c                   11.3276(5)
_cell_measurement_reflns_used    9907
_cell_measurement_temperature    100.00(10)
_cell_measurement_theta_max      36.22
_cell_measurement_theta_min      6.53
_cell_volume                     1223.78(10)
_computing_cell_refinement       'SAINT (Bruker, 2009)'
_computing_data_collection       'APEX2 (Bruker, 2009)'
_computing_data_reduction        'SAINT (Bruker, 2009)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
'SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.00(10)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type
;
Bruker APEX DUO CCD area-detector diffractometer
;
_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  0.0188
_diffrn_reflns_av_sigmaI/netI    0.0171
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            20102
_diffrn_reflns_theta_full        35.00
_diffrn_reflns_theta_max         35.00
_diffrn_reflns_theta_min         6.23
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  0.9745
_exptl_absorpt_correction_T_min  0.9633
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.337
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blcok
_exptl_crystal_F_000             520
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.27
_refine_diff_density_max         0.597
_refine_diff_density_min         -0.321
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.145
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     219
_refine_ls_number_reflns         5326
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.145
_refine_ls_R_factor_all          0.0469
_refine_ls_R_factor_gt           0.0394
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0859P)^2^+0.1288P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1168
_refine_ls_wR_factor_ref         0.1366
_reflns_number_gt                4662
_reflns_number_total             5326
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            rz2424.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 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2225685
_cod_database_fobs_code          2225685