Piperazinium dinitrate
E Yang; Xu-Chun Song; Yue-E Chen; Rong-Qiang Zhuang; Acta Crystallographica Section E 63 (2007) o340–o341; doi:10.1107/S1600536806053724

data_2211755
_publ_section_title
;
 Piperazinium dinitrate
;
_journal_coeditor_code           CF2077
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o340
_journal_page_last               o341
_journal_paper_doi               10.1107/S1600536806053724
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C4 H12 N2 2+ , 2 N O3 -'
_chemical_formula_moiety         'C4 H12 N2 2+ , 2 N O3 -'
_chemical_formula_sum            'C4 H12 N4 O6'
_chemical_formula_weight         212.18
_chemical_name_systematic
;
Piperazinium dinitrate
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 120.9560(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.6895(3)
_cell_length_b                   5.93010(10)
_cell_length_c                   12.4018(4)
_cell_measurement_reflns_used    220
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      28.02
_cell_measurement_theta_min      3.23
_cell_volume                     926.44(4)
_computing_cell_refinement       'SAINT (Siemens, 1996)'
_computing_data_collection       'SMART (Siemens, 1996)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'DIAMOND (Bergerhoff <i>et al.</i>,  1996)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'Siemens SMART 1K CCD area-detector'
_diffrn_measurement_method       '\f and \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  0.0526
_diffrn_reflns_av_sigmaI/netI    0.0583
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            3535
_diffrn_reflns_theta_full        28.02
_diffrn_reflns_theta_max         28.02
_diffrn_reflns_theta_min         3.23
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.141
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.88
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.521
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             448
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.147
_refine_diff_density_min         -0.173
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.768
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     64
_refine_ls_number_reflns         1104
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.768
_refine_ls_R_factor_all          0.0794
_refine_ls_R_factor_gt           0.0338
_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^)+(0.0417P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0784
_refine_ls_wR_factor_ref         0.0895
_reflns_number_gt                535
_reflns_number_total             1104
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            cf2077.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      'C 2/c'
_cod_database_code               2211755
_cod_database_fobs_code          2211755