Proton-transfer compounds of isonipecotamide with the aromatic dicarboxylic acids 4-nitrophthalic, 4,5-dichlorophthalic, 5-nitroisophthalic and terephthalic acid
Smith, Graham; Wermuth, Urs D.; Acta Crystallographica Section C 67 (2011) o259–o264; doi:10.1107/S0108270111020518

data_2018158
_publ_section_title
;
 Proton-transfer compounds of isonipecotamide with the aromatic
 dicarboxylic acids 4-nitrophthalic, 4,5-dichlorophthalic,
 5-nitroisophthalic and terephthalic acid
;
_journal_coeditor_code           SU3064
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o259
_journal_page_last               o264
_journal_paper_doi               10.1107/S0108270111020518
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C6 H13 N2 O + , C8 H4 N O6 -'
_chemical_formula_moiety         'C6 H13 N2 O +, C8 H4 N O6 -'
_chemical_formula_sum            'C14 H17 N3 O7'
_chemical_formula_weight         339.31
_chemical_melting_point          467
_chemical_name_common            'isonipecotamide hydrogen 4-nitrophthalate'
_chemical_name_systematic
;
4-carbamoylpiperidinium 2-carboxy-4-nitrobenzoate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.082(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.8637(5)
_cell_length_b                   11.2707(8)
_cell_length_c                   23.0268(19)
_cell_measurement_reflns_used    4796
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      28.804
_cell_measurement_theta_min      3.204
_cell_volume                     1519.6(2)
_computing_cell_refinement       'CrysAlis PRO (Oxford Diffraction, 2009)'
_computing_data_collection       'CrysAlis PRO (Oxford Diffraction, 2009)'
_computing_data_reduction        'CrysAlis PRO (Oxford Diffraction, 2009)'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material  'PLATON (Spek, 2009)'
_computing_structure_refinement
;
SHELXL97 (Sheldrick, 2008) within WinGX (Farrugia, 1999)
;
_computing_structure_solution    'SIR92 (Altomare <i>et al.</i>, 1994)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.9997
_diffrn_measured_fraction_theta_max 0.9997
_diffrn_measurement_device_type  'Oxford Gemini-S CCD area-detector'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0226
_diffrn_reflns_av_sigmaI/netI    0.0251
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            10364
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         3.21
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.121
_exptl_absorpt_correction_T_max  0.980
_exptl_absorpt_correction_T_min  0.915
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrysAlis PRO; Oxford Diffraction, 2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.483
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.350
_refine_diff_density_min         -0.262
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     233
_refine_ls_number_reflns         2989
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0635
_refine_ls_R_factor_gt           0.0461
_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^)+(0.0482P)^2^+0.9247P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1077
_refine_ls_wR_factor_ref         0.1141
_reflns_number_gt                2375
_reflns_number_total             2989
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            su3064.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2018158
_cod_database_fobs_code          2018158