<small>L</small>-Asparaginium picrate
K. Anitha; S. Athimoolam; R. K. Rajaram; Acta Crystallographica Section E 61 (2005) o1463–o1465; doi:10.1107/S1600536805012080

data_2205705
_publ_section_title
;
 <small>L</small>-Asparaginium picrate
;
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1463
_journal_page_last               o1465
_journal_paper_doi               10.1107/S1600536805012080
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C4 H9 N2 O3 + , C6 H2 N3 O7 -'
_chemical_formula_moiety         'C4 H9 N2 O3 + , C6 H2 N3 O7 -'
_chemical_formula_sum            'C10 H11 N5 O10'
_chemical_formula_weight         361.24
_chemical_name_common            'L-Asparaginium picrate'
_chemical_name_systematic
;
L-Asparaginium picrate
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 93.20(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.367(4)
_cell_length_b                   5.1611(7)
_cell_length_c                   13.120(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      14.29
_cell_measurement_theta_min      10.06
_cell_volume                     700.9(3)
_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
'ORTEPII (Johnson,1976) and PLATON (Spek, 2003)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Nonius MACH-3'
_diffrn_measurement_method       \w/2\q
_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  0.0097
_diffrn_reflns_av_sigmaI/netI    0.0089
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -1
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            1769
_diffrn_reflns_theta_full        24.97
_diffrn_reflns_theta_max         24.97
_diffrn_reflns_theta_min         2.44
_diffrn_standards_decay_%        2
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.155
_exptl_absorpt_correction_T_max  0.967
_exptl_absorpt_correction_T_min  0.956
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North <i>et al.</i>, 1968)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.712
_exptl_crystal_density_meas      1.710
_exptl_crystal_density_method
'flotation, using a mixture of carbon tetrachloride and bromoform'
_exptl_crystal_description       needle
_exptl_crystal_F_000             372
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.130
_refine_diff_density_min         -0.161
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.094
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     227
_refine_ls_number_reflns         1380
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.093
_refine_ls_R_factor_all          0.0271
_refine_ls_R_factor_gt           0.0251
_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^)+(0.0395P)^2^+0.1431P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0679
_refine_ls_wR_factor_ref         0.0695
_reflns_number_gt                1300
_reflns_number_total             1380
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            er6019.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'
_cod_database_code               2205705
_cod_database_fobs_code          2205705