#------------------------------------------------------------------------------
#$Date: 2020-03-17 12:35:40 +0200 (Tue, 17 Mar 2020) $
#$Revision: 249436 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/20/67/2206769.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2206769
loop_
_publ_author_name
'Liu, Ying'
'Dou, Jianmin'
'Wang, Daqi'
'Li, Dacheng'
_publ_section_title
;
 Poly[diaquadi-μ₃-malonato-μ-pyrazine-dinickel(II)]
;
_journal_coeditor_code           OB6558
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m1834
_journal_page_last               m1836
_journal_paper_doi               10.1107/S1600536805026358
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          '[Ni2 (C3 H2 O4)2 (C4 H4 N2) (H2 O)2]'
_chemical_formula_moiety         'C10 H12 N2 Ni2 O10'
_chemical_formula_sum            'C10 H12 N2 Ni2 O10'
_chemical_formula_weight         437.6
_chemical_name_systematic
;
Poly[diaquabis(μ₃-malonato)(μ-pyrazine)dinickel(II)]
;
_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           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 92.181(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.9783(5)
_cell_length_b                   14.5612(9)
_cell_length_c                   7.3348(5)
_cell_measurement_reflns_used    1338
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.16
_cell_measurement_theta_min      1.71
_cell_volume                     744.77(9)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Siemens, 1996)'
_computing_data_reduction        'SAINT (Siemens, 1996)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1997b)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997a)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997a)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Siemens SMART CCD area-detector'
_diffrn_measurement_method       'φ and ω'
_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  0.0226
_diffrn_reflns_av_sigmaI/netI    0.0375
_diffrn_reflns_limit_h_max       3
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            2429
_diffrn_reflns_theta_full        25.16
_diffrn_reflns_theta_max         25.16
_diffrn_reflns_theta_min         2.80
_exptl_absorpt_coefficient_mu    2.585
_exptl_absorpt_correction_T_max  0.426
_exptl_absorpt_correction_T_min  0.375
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.951
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       column
_exptl_crystal_F_000             444
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.33
_refine_diff_density_max         0.602
_refine_diff_density_min         -0.396
_refine_ls_extinction_coef       0.018(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 1997a)'
_refine_ls_goodness_of_fit_ref   1.002
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     123
_refine_ls_number_reflns         1338
_refine_ls_number_restraints     9
_refine_ls_restrained_S_all      1.004
_refine_ls_R_factor_all          0.0391
_refine_ls_R_factor_gt           0.0329
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.008
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[σ²(Fo²)+(0.0643P)²] where P = (Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0856
_refine_ls_wR_factor_ref         0.0893
_reflns_number_gt                1118
_reflns_number_total             1338
_reflns_threshold_expression     I>2σ(I)
_cod_data_source_file            ob6558.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2206769
_cod_database_fobs_code          2206769
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x-1/2, -y-1/2, z-1/2'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_occupancy
_atom_site_type_symbol
. . . . . . . . . .
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Ni Ni 0.3393 1.1124 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_cod_entry_issue_id
_cod_entry_issue_origin
_cod_entry_issue_severity
_cod_entry_issue_description
_cod_entry_issue_author
_cod_entry_issue_date
1 original retraction
;
    This file does not describe any real compound and was retracted by
    the authors. The previously deposited coordinates can be reviewed
    in older revisions of this file or in the COD Subversion
    repository, svn://www.crystallography.net/cod/retracted/.

    The precise reasons for the retraction and other circumstances are
    extensively discussed in the Acta Cryst. E editorial:

    Acta Cryst. E 68 (2012) e14--e15

    http://journals.iucr.org/e/issues/2012/07/00/me0451/index.html
    http://journals.iucr.org/e/issues/2012/07/00/me0451/me0451.pdf
    doi:10.1107/S1600536811037603
    (http://dx.doi.org/10.1107/S1600536811037603)
;
'Andrius Merkys' 2017-02-20
