2-Amino-5-methylpyridinium 3-hydroxypyridine-2-carboxylate
Farhadikoutenaei, Abbas; Thanigaimani, Kaliyaperumal; Arshad, Suhana; Razak, Ibrahim Abdul; Acta Crystallographica Section E 69 (2013) o1118–o1119; doi:10.1107/S1600536813016322

data_2238195
_publ_section_title
;
 2-Amino-5-methylpyridinium 3-hydroxypyridine-2-carboxylate
;
_journal_coeditor_code           IS5281
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1118
_journal_page_last               o1119
_journal_paper_doi               10.1107/S1600536813016322
_journal_volume                  69
_journal_year                    2013
_chemical_formula_iupac          'C6 H9 N2 +, C6 H4 N O3 -'
_chemical_formula_moiety         'C6 H9 N2 +, C6 H4 N O3 -'
_chemical_formula_sum            'C12 H13 N3 O3'
_chemical_formula_weight         247.25
_chemical_name_systematic
;
2-Amino-5-methylpyridinium 3-hydroxypyridine-2-carboxylate
;
_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                 118.250(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.3443(4)
_cell_length_b                   16.4321(9)
_cell_length_c                   10.8235(5)
_cell_measurement_reflns_used    8234
_cell_measurement_temperature    100.0(10)
_cell_measurement_theta_max      32.61
_cell_measurement_theta_min      2.47
_cell_volume                     1150.62(11)
_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      100.0(10)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type
;
Bruker SMART APEXII DUO 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  0.0196
_diffrn_reflns_av_sigmaI/netI    0.0194
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            15996
_diffrn_reflns_theta_full        32.63
_diffrn_reflns_theta_max         32.63
_diffrn_reflns_theta_min         2.47
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.105
_exptl_absorpt_correction_T_max  0.9836
_exptl_absorpt_correction_T_min  0.9416
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(<i>SADABS</i>; Bruker, 2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.427
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             520
_exptl_crystal_size_max          0.58
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.472
_refine_diff_density_min         -0.219
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     180
_refine_ls_number_reflns         4132
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0415
_refine_ls_R_factor_gt           0.0363
_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^)+(0.0686P)^2^+0.2463P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1087
_refine_ls_wR_factor_ref         0.1148
_reflns_number_gt                3596
_reflns_number_total             4132
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            is5281.cif
_cod_data_source_block           I
_cod_original_cell_volume        1150.62(10)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2238195
_cod_database_fobs_code          2238195