The 1:2 adduct <i>N,N</i>-dimethylethylenediamine-1,4-diium bis(2,4-dinitrophenolate)
Suchada Chantrapromma; Anwar Usman; Hoong-Kun Fun; Bo-Long Poh; Chatchanok Karalai; Acta Crystallographica Section E 58 (2002) o108–o110; doi:10.1107/S1600536801021845

data_2200929
_publ_section_title
;
 The 1:2 adduct <i>N,N</i>-dimethylethylenediamine-1,4-diium
 bis(2,4-dinitrophenolate)
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o108
_journal_page_last               o110
_journal_paper_doi               10.1107/S1600536801021845
_journal_volume                  58
_journal_year                    2002
_chemical_formula_iupac          'C4 H14 N2 1+, 2C6 H3 N2 O5 1-'
_chemical_formula_moiety         'C4 H14 N2 1+, 2C6 H3 N2 O5 1-'
_chemical_formula_sum            'C16 H20 N6 O10'
_chemical_formula_weight         456.38
_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           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.886(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.3777(3)
_cell_length_b                   7.3596(2)
_cell_length_c                   22.00640(10)
_cell_measurement_reflns_used    3306
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      28.32
_cell_measurement_theta_min      2.92
_cell_volume                     1985.71(7)
_computing_cell_refinement       'SAINT (Siemens, 1996)'
_computing_data_collection       'SMART (Siemens, 1996)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    SHELXTL
_computing_publication_material
;
SHELXTL, PARST (Nardelli, 1995) and PLATON (Spek, 1990)
;
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Sheldrick, 1997)'
_diffrn_ambient_temperature      183(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full .982
_diffrn_measured_fraction_theta_max .982
_diffrn_measurement_device_type  'Siemens SMART CCD area-detector'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     .71073
_diffrn_reflns_av_R_equivalents  .0925
_diffrn_reflns_av_sigmaI/netI    .1327
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            9040
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.92
_diffrn_standards_decay_%        negligible
_diffrn_standards_interval_count none
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    .129
_exptl_absorpt_correction_T_max  .9872
_exptl_absorpt_correction_T_min  .9648
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.527
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             952
_exptl_crystal_size_max          .28
_exptl_crystal_size_mid          .28
_exptl_crystal_size_min          .10
_refine_diff_density_max         .249
_refine_diff_density_min         -.286
_refine_ls_extinction_coef       .0120(13)
_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   .868
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     304
_refine_ls_number_reflns         3427
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      .868
_refine_ls_R_factor_all          .1190
_refine_ls_R_factor_gt           .0584
_refine_ls_shift/su_max          <0.001
_refine_ls_shift/su_mean         .000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0449P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          .1180
_refine_ls_wR_factor_ref         .1376
_reflns_number_gt                1790
_reflns_number_total             3427
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            na6126.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2200929
_cod_database_fobs_code          2200929