Anhydrous guanidinium 3,5-dinitrobenzoate
Smith, Graham; Wermuth, Urs D.; White, Jonathan M.; Acta Crystallographica Section E 63 (2007) o867–o868; doi:10.1107/S1600536807002231

data_2212411
_publ_section_title
;
 Anhydrous guanidinium 3,5-dinitrobenzoate
;
_journal_coeditor_code           WW2074
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o867
_journal_page_last               o868
_journal_paper_doi               10.1107/S1600536807002231
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C H6 N3 +, C7 H3 N2 O6 -'
_chemical_formula_moiety         'C H6 N3 +, C7 H3 N2 O6 -'
_chemical_formula_sum            'C8 H9 N5 O6'
_chemical_formula_weight         271.20
_chemical_melting_point_gt       553
_chemical_name_common            'guanidinium 3,5-dinitrobenzoate'
_chemical_name_systematic
;
guanidinium 3,5-dinitrobenzoate
;
_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 (Sheldrick, 1997)'
_cell_angle_alpha                90.00
_cell_angle_beta                 103.5660(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.5192(6)
_cell_length_b                   19.0605(14)
_cell_length_c                   7.8416(6)
_cell_measurement_reflns_used    3607
_cell_measurement_temperature    130(2)
_cell_measurement_theta_max      25.05
_cell_measurement_theta_min      2.67
_cell_volume                     1092.50(15)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 1999)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  PLATON
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      130(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0415
_diffrn_reflns_av_sigmaI/netI    0.0292
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            5679
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.14
_diffrn_standards_decay_%        0.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.143
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.649
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.197
_refine_diff_density_min         -0.228
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     196
_refine_ls_number_reflns         1920
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0322
_refine_ls_R_factor_gt           0.0296
_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^)+(0.0456P)^2^+0.2176P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0796
_refine_ls_wR_factor_ref         0.0815
_reflns_number_gt                1753
_reflns_number_total             1920
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ww2074.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' tag was changed to
'_chemical_melting_point_gt' since the value was specified 'more
than' ('>') a certain temperature. The value '>553' was changed to
'553' - it should be numeric and without a unit designator.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' tag was changed to
'_chemical_melting_point_gt' since the value was specified 'more
than' ('>') a certain temperature. The value '>553' was changed to
'553' - it should be numeric and without a unit designator.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2212411
_cod_database_fobs_code          2212411