2-Amino-5-methylpyridinium picolinate 0.63-hydrate
Hemamalini, Madhukar; Fun, Hoong-Kun; Acta Crystallographica Section E 66 (2010) o1420–o1421; doi:10.1107/S1600536810018180

data_2226298
_publ_section_title
;
 2-Amino-5-methylpyridinium picolinate 0.63-hydrate
;
_journal_coeditor_code           SJ5005
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1420
_journal_page_last               o1421
_journal_paper_doi               10.1107/S1600536810018180
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C6 H9 N2 +, C6 H4 N O2 -, 1.25H2 O'
_chemical_formula_moiety         'C6 H9 N2 +, C6 H4 N O2 -, 1.25(H2 O)'
_chemical_formula_sum            'C12 H14.25 N3 O2.63'
_chemical_formula_weight         242.51
_chemical_name_common
;
2-amino-5-methylpyridinium picolinate 1.25-hydrate
;
_chemical_name_systematic
;
2-Amino-5-methylpyridinium pyridine-2-carboxylate 1.25-hydrate
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.126(3)
_cell_length_b                   13.842(3)
_cell_length_c                   14.318(3)
_cell_measurement_reflns_used    7433
_cell_measurement_temperature    100.00(10)
_cell_measurement_theta_max      29.75
_cell_measurement_theta_min      2.23
_cell_volume                     2403.2(9)
_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 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type
;
Bruker APEXII 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  0.0682
_diffrn_reflns_av_sigmaI/netI    0.0291
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            50363
_diffrn_reflns_theta_full        30.22
_diffrn_reflns_theta_max         30.22
_diffrn_reflns_theta_min         2.20
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_T_max  0.9910
_exptl_absorpt_correction_T_min  0.9734
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.340
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1026
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.333
_refine_diff_density_min         -0.349
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     353
_refine_ls_number_reflns         3955
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0699
_refine_ls_R_factor_gt           0.0461
_refine_ls_shift/su_max          0.001
_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^)+(0.0779P)^2^+0.4137P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1168
_refine_ls_wR_factor_ref         0.1407
_reflns_number_gt                3119
_reflns_number_total             3955
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sj5005.cif
_cod_data_source_block           I
_cod_depositor_comments
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The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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 
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_cod_original_cell_volume        2403.4(10)
_cod_database_code               2226298
_cod_database_fobs_code          2226298