2-Amino-4-methylpyridinium 2-hydroxybenzoate
Hemamalini, Madhukar; Fun, Hoong-Kun; Acta Crystallographica Section E 66 (2010) o2151–o2152; doi:10.1107/S160053681002965X

data_2226920
_publ_section_title
;
 2-Amino-4-methylpyridinium 2-hydroxybenzoate
;
_journal_coeditor_code           HB5564
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2151
_journal_page_last               o2152
_journal_paper_doi               10.1107/S160053681002965X
_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_common
;
2-amino-4-methylpyridinium salicylate
;
_chemical_name_systematic
;
2-Amino-4-methylpyridinium 2-hydroxybenzoate
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                68.752(2)
_cell_angle_beta                 82.038(2)
_cell_angle_gamma                88.824(2)
_cell_formula_units_Z            4
_cell_length_a                   7.2417(2)
_cell_length_b                   12.5520(3)
_cell_length_c                   14.7699(3)
_cell_measurement_reflns_used    3981
_cell_measurement_temperature    100.00(10)
_cell_measurement_theta_max      31.40
_cell_measurement_theta_min      2.68
_cell_volume                     1238.58(5)
_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 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEXII CCD'
_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  0.0471
_diffrn_reflns_av_sigmaI/netI    0.0667
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            23090
_diffrn_reflns_theta_full        31.61
_diffrn_reflns_theta_max         31.61
_diffrn_reflns_theta_min         1.49
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.095
_exptl_absorpt_correction_T_max  0.996
_exptl_absorpt_correction_T_min  0.971
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.321
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             520
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.376
_refine_diff_density_min         -0.284
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.001
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     359
_refine_ls_number_reflns         8280
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.001
_refine_ls_R_factor_all          0.1038
_refine_ls_R_factor_gt           0.0561
_refine_ls_shift/su_max_lt       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^)+(0.0755P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1330
_refine_ls_wR_factor_ref         0.1552
_reflns_number_gt                5112
_reflns_number_total             8280
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb5564.cif
_cod_data_source_block           I
_cod_database_code               2226920
_cod_database_fobs_code          2226920