Poly[[hemi-μ~4~-oxalato-hemi-μ~2~-oxalato-bis(μ~3~-pyrazine-2-carboxylato)erbium(III)silver(I)] monohydrate]
Zhao, Ling-Zhi; He, Rui-Xia; Zhong, Qiu-Gui; Zeng, Rong-Hua; Lu, Dong-Sheng; Acta Crystallographica Section E 65 (2009) m1018–m1019; doi:10.1107/S1600536809029742

data_2222749
_publ_section_title
;Poly[[hemi-\m~4~-oxalato-hemi-\m~2~-oxalato-bis(\m~3~-pyrazine-2-carboxylato)erbium(III)silver(I)]
 monohydrate]
;
_journal_coeditor_code           HY2207
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m1018
_journal_page_last               m1019
_journal_paper_doi               10.1107/S1600536809029742
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          '[Ag Er (C5 H3 N2 O2)2 (C2 O4)], H2 O'
_chemical_formula_moiety         'C12 H6 Ag Er N4 O8, H2 O'
_chemical_formula_sum            'C12 H8 Ag Er N4 O9'
_chemical_formula_weight         627.35
_chemical_name_systematic
;
Poly[[hemi-\m~4~-oxalato-hemi-\m~2~-oxalato-bis(\m~3~-pyrazine-2-
carboxylato)erbium(III)silver(I)] monohydrate]
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 95.3970(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.0482(6)
_cell_length_b                   18.3968(11)
_cell_length_c                   8.0371(5)
_cell_measurement_reflns_used    5128
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.23
_cell_measurement_theta_min      2.21
_cell_volume                     1479.11(16)
_computing_cell_refinement       'SAINT (Bruker, 2007)'
_computing_data_collection       'APEX2 (Bruker, 2007)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics
'SHELXTL (Sheldrick, 2008) and Mercury (Macrae <i>et al.</i>,  2006)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEXII CCD'
_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  0.0189
_diffrn_reflns_av_sigmaI/netI    0.0212
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            7533
_diffrn_reflns_theta_full        25.20
_diffrn_reflns_theta_max         25.20
_diffrn_reflns_theta_min         2.04
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    7.024
_exptl_absorpt_correction_T_max  0.3487
_exptl_absorpt_correction_T_min  0.3071
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.817
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1180
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.19
_refine_diff_density_max         1.429
_refine_diff_density_min         -1.144
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         2649
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0230
_refine_ls_R_factor_gt           0.0208
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.024P)^2^+4.153P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0490
_refine_ls_wR_factor_ref         0.0500
_reflns_number_gt                2450
_reflns_number_total             2649
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            hy2207.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/c'
_cod_database_code               2222749
_cod_database_fobs_code          2222749