A new polymorph of <i>catena</i>-poly[[triaquacadmium(II)]-μ~2~-pyrazine-2,3-dicarboxylato]
Yin, Hua; Acta Crystallographica Section E 65 (2009) m971–; doi:10.1107/S1600536809028268

data_2222595
_publ_section_title
;
 A new polymorph of
 <i>catena</i>-poly[[triaquacadmium(II)]-\m~2~-pyrazine-2,3-dicarboxylato]
;
_journal_coeditor_code           BT5003
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m971
_journal_paper_doi               10.1107/S1600536809028268
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          '[Cd (C6 H2 N2 O4) (H2 O)3]'
_chemical_formula_moiety         'C6 H2 Cd N2 O4, 3H2O'
_chemical_formula_sum            'C6 H8 Cd N2 O7'
_chemical_formula_weight         332.54
_chemical_name_systematic
;
<i>catena</i>-poly[[triaquacadmium(II)]-\m~2~-pyrazine-2,3-dicarboxylato]
;
_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                 93.94(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.586(6)
_cell_length_b                   15.748(9)
_cell_length_c                   10.832(6)
_cell_measurement_reflns_used    4538
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.47
_cell_measurement_theta_min      3.20
_cell_volume                     950.6(13)
_computing_cell_refinement
'TEXRAY (Molecular Structure Corporation, 1999)'
_computing_data_collection
'TEXRAY (Molecular Structure Corporation, 1999)'
_computing_data_reduction
'TEXSAN (Molecular Structure Corporation, 1999)'
_computing_molecular_graphics    'ORTEX (McArdle, 1995)'
_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 0.976
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'Weissenberg IP'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotor target'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0321
_diffrn_reflns_av_sigmaI/netI    0.0409
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5659
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         3.20
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 'not measured'
_diffrn_standards_interval_time  'not measured'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.323
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.668
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'(TEXRAY; Molecular Structure Corporation, 1999)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    2.324
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.824
_refine_diff_density_min         -0.531
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     145
_refine_ls_number_reflns         2129
_refine_ls_number_restraints     9
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0412
_refine_ls_R_factor_gt           0.0295
_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^)+(0.0366P)^2^+0.562P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0709
_refine_ls_wR_factor_ref         0.0739
_reflns_number_gt                1699
_reflns_number_total             2129
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bt5003.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.

'_geom_bond_publ_flag' value 'Yes' changed to 'yes' according
to '/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (4
times).

'_geom_angle_publ_flag' value 'Yes' changed to 'yes' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (15 times).

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.

'_geom_bond_publ_flag' value 'Yes' changed to 'yes'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29 (4
times).

'_geom_angle_publ_flag' value 'Yes' changed to 'yes'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29 (15
times).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        950.5(12)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2222595
_cod_database_fobs_code          2222595