Similar environments for the ClO~4~^{-^}, HSO~4~^{-^} and H~2~PO~4~^{-^} anions offered by strychnine self-assemblies
Agata Białońska; Zbigniew Ciunik; Acta Crystallographica Section C 61 (2005) o161–o164; doi:10.1107/S0108270105001034

data_2014689
_publ_section_title
;
 Similar environments for the ClO~4~^{-^}, HSO~4~^{-^} and
 H~2~PO~4~^{-^} anions offered by strychnine self-assemblies
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o161
_journal_page_last               o164
_journal_paper_doi               10.1107/S0108270105001034
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C21 H23 N2 O2 +, H O4 S -, 2H2 O'
_chemical_formula_moiety         'C21 H23 N2 O2 +, H O4 S -, 2H2 O'
_chemical_formula_sum            'C21 H28 N2 O8 S'
_chemical_formula_weight         468.51
_chemical_name_systematic
;
Strychninium hydrogen sulphate (VI) dihydrate
;
_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           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 100.388(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.7884(8)
_cell_length_b                   7.6686(8)
_cell_length_c                   17.5780(18)
_cell_measurement_reflns_used    1886
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.49
_cell_measurement_theta_min      3.54
_cell_volume                     1032.66(19)
_computing_cell_refinement       'CrysAlis RED (Oxford Diffraction, 2001)'
_computing_data_collection       'CrysAlis CCD (Oxford Diffraction, 2001)'
_computing_data_reduction        'CrysAlis RED'
_computing_molecular_graphics    'SHELXTL-NT (Bruker, 1999)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Kuma KM-4 CCD'
_diffrn_measurement_method       '\w scans'
_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  0.0762
_diffrn_reflns_av_sigmaI/netI    0.0668
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            6972
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         3.54
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.211
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourles
_exptl_crystal_density_diffrn    1.507
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             496
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.328
_refine_diff_density_min         -0.552
_refine_ls_abs_structure_details
;
from known structure (Robertson & Beevers, 1951), Flack (1983),
1465 Friedel pairs?
;
_refine_ls_abs_structure_Flack   -0.14(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         4009
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0540
_refine_ls_R_factor_gt           0.0466
_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^)+(0.0753P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1181
_refine_ls_wR_factor_ref         0.1257
_reflns_number_gt                3552
_reflns_number_total             4009
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            gd1357.cif
_cod_data_source_block           II
_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_cell_volume        1032.66(18)
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               2014689
_cod_database_fobs_code          2014689