Hexaaquacadmium(II) dipicrate monohydrate
Natarajan, S.; Moovendaran, K.; Dhas, S. A. Martin Britto; Suresh, J.; Lakshman, P. L. Nilantha; Acta Crystallographica Section E 65 (2009) m620–; doi:10.1107/S1600536809015049

data_2221920
_publ_section_title
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 Hexaaquacadmium(II) dipicrate monohydrate
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_journal_coeditor_code           BQ2135
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m620
_journal_paper_doi               10.1107/S1600536809015049
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          '[Cd (H2 O)6] (C6 H2 N3 O7)2, H2 O'
_chemical_formula_moiety         'Cd H12 O6 2+, 2(C6 H2 N3 O7 -), 2(H2 O)'
_chemical_formula_sum            'C12 H20 Cd N6 O22'
_chemical_formula_weight         712.75
_chemical_name_systematic
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Hexaaquacadmium(II) dipicrate monohydrate
;
_space_group_IT_number           56
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2bc 2ab'
_symmetry_space_group_name_H-M   'P b n b'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.2823(2)
_cell_length_b                   13.2249(4)
_cell_length_c                   25.3798(8)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      3
_cell_volume                     2444.27(13)
_computing_cell_refinement       'CAD-4 EXPRESS (Enraf--Nonius, 1994)'
_computing_data_collection       'CAD-4 EXPRESS (Enraf--Nonius, 1994)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1996)'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0096
_diffrn_reflns_av_sigmaI/netI    0.0161
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -1
_diffrn_reflns_number            2247
_diffrn_reflns_theta_full        24.96
_diffrn_reflns_theta_max         24.96
_diffrn_reflns_theta_min         2.91
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  60
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    1.009
_exptl_absorpt_correction_T_max  0.895
_exptl_absorpt_correction_T_min  0.834
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North <i>et al.</i>,  1968)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.937
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1432
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.540
_refine_diff_density_min         -0.380
_refine_ls_extinction_coef       0.0029(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 2008)'
_refine_ls_goodness_of_fit_ref   1.164
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     220
_refine_ls_number_reflns         2142
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.164
_refine_ls_R_factor_all          0.0488
_refine_ls_R_factor_gt           0.0273
_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^)+(0.0314P)^2^+3.7212P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0742
_refine_ls_wR_factor_ref         0.0835
_reflns_number_gt                1513
_reflns_number_total             2142
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bq2135.cif
_cod_data_source_block           I
_cod_depositor_comments
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The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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 'Orthorhombic' changed to
'orthorhombic' 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 
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_cod_database_code               2221920
_cod_database_fobs_code          2221920