2,6-Xylidinium nitrate
Abid, Sonia; Hemissi, Hanene; Rzaigui, Mohamed; Acta Crystallographica Section E 63 (2007) o3117–o3117; doi:10.1107/S1600536807025408

data_2214150
_publ_section_title
;
 2,6-Xylidinium nitrate
;
_journal_coeditor_code           DN2181
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3117
_journal_page_last               o3117
_journal_paper_doi               10.1107/S1600536807025408
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C8 H12 N +, N O3 -'
_chemical_formula_moiety         'C8 H12 N +, N O3 -'
_chemical_formula_sum            'C8 H12 N2 O3'
_chemical_formula_weight         184.20
_chemical_name_systematic
;
2,6-Xylidinium nitrate
;
_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                 91.47(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.891(2)
_cell_length_b                   8.328(3)
_cell_length_c                   13.628(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      9.69
_cell_measurement_theta_min      8.30
_cell_volume                     895.3(4)
_computing_cell_refinement       'CAD-4 EXPRESS'
_computing_data_collection       'CAD-4 EXPRESS (Enraf--Nonius, 1994)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Enraf--Nonius TurboCAD-4'
_diffrn_measurement_method       'non-profiled \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0175
_diffrn_reflns_av_sigmaI/netI    0.0225
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            3131
_diffrn_reflns_theta_full        25
_diffrn_reflns_theta_max         24.97
_diffrn_reflns_theta_min         2.58
_diffrn_standards_decay_%        5
_diffrn_standards_interval_time  120
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    0.106
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.367
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             392
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.167
_refine_diff_density_min         -0.156
_refine_ls_extinction_coef       0.014(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     122
_refine_ls_number_reflns         1568
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0541
_refine_ls_R_factor_gt           0.0371
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0537P)^2^+0.2838P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1038
_refine_ls_wR_factor_ref         0.1116
_reflns_number_gt                1181
_reflns_number_total             1568
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            dn2181.cif
_cod_data_source_block           I
_cod_original_cell_volume        895.2(4)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2214150
_cod_database_fobs_code          2214150