2-Amino-5-cyanopyridinium chloride
Wen, Xiao-Chun; Acta Crystallographica Section E 64 (2008) o1461–; doi:10.1107/S1600536808020783

data_2219158
_publ_section_title
;
 2-Amino-5-cyanopyridinium chloride
;
_journal_coeditor_code           RZ2232
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1461
_journal_paper_doi               10.1107/S1600536808020783
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C6 H6 N3 +, Cl -'
_chemical_formula_moiety         'C6 H6 N3 +, Cl -'
_chemical_formula_sum            'C6 H6 Cl N3'
_chemical_formula_weight         155.59
_chemical_name_systematic
;
2-Amino-5-cyanopyridinium chloride
;
_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                 94.95(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   4.0937(8)
_cell_length_b                   11.856(2)
_cell_length_c                   14.842(3)
_cell_measurement_reflns_used    1250
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      24.36
_cell_measurement_theta_min      2.31
_cell_volume                     717.7(2)
_computing_cell_refinement       'CrystalClear (Rigaku, 2005)'
_computing_data_collection       'CrystalClear (Rigaku, 2005)'
_computing_data_reduction        'CrystalClear (Rigaku, 2005)'
_computing_molecular_graphics    'SHELXTL/PC (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL/PC (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean 13.6612
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku Mercury2'
_diffrn_measurement_method       \w
_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  0.0444
_diffrn_reflns_av_sigmaI/netI    0.0356
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            7307
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.25
_exptl_absorpt_coefficient_mu    0.451
_exptl_absorpt_correction_T_max  0.935
_exptl_absorpt_correction_T_min  0.922
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrystalClear; Rigaku, 2005)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.440
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             320
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.211
_refine_diff_density_min         -0.233
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     91
_refine_ls_number_reflns         1652
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0663
_refine_ls_R_factor_gt           0.0448
_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^)+(0.041P)^2^+0.2213P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0943
_refine_ls_wR_factor_ref         0.1022
_reflns_number_gt                1252
_reflns_number_total             1652
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            rz2232.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2219158
_cod_database_fobs_code          2219158