Bis[3-(2-carboxyethenyl)pyridinium-1-acetato]dichloridozinc(II)
Jing, Xue-Hui; Sun, Wei-Wei; Gao, En-Qing; Acta Crystallographica Section E 65 (2009) m1598–; doi:10.1107/S160053680904793X

data_2224300
_publ_section_title
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 Bis[3-(2-carboxyethenyl)pyridinium-1-acetato]dichloridozinc(II)
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_journal_coeditor_code           HY2249
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m1598
_journal_paper_doi               10.1107/S160053680904793X
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          '[Zn Cl2 (C10 H9 N O4)2]'
_chemical_formula_moiety         'C20 H18 Cl2 N2 O8 Zn'
_chemical_formula_sum            'C20 H18 Cl2 N2 O8 Zn'
_chemical_formula_weight         550.63
_chemical_name_systematic
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Bis[3-(2-carboxyethenyl)pyridinium-1-acetato]dichloridozinc(II)
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 108.6850(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.6247(6)
_cell_length_b                   7.1973(3)
_cell_length_c                   18.8873(7)
_cell_measurement_reflns_used    9202
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.00
_cell_measurement_theta_min      2.28
_cell_volume                     2140.81(14)
_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 DIAMOND (Brandenburg, 1999)'
_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 0.993
_diffrn_measured_fraction_theta_max 0.993
_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  0.0188
_diffrn_reflns_av_sigmaI/netI    0.0089
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            27422
_diffrn_reflns_theta_full        27.51
_diffrn_reflns_theta_max         27.51
_diffrn_reflns_theta_min         2.28
_exptl_absorpt_coefficient_mu    1.449
_exptl_absorpt_correction_T_max  0.8929
_exptl_absorpt_correction_T_min  0.8453
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2001)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.708
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1120
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.496
_refine_diff_density_min         -0.235
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2450
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0297
_refine_ls_R_factor_gt           0.0278
_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^)+(0.0424P)^2^+2.553P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0745
_refine_ls_wR_factor_ref         0.0765
_reflns_number_gt                2309
_reflns_number_total             2450
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hy2249.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      'C 2/c'
_cod_database_code               2224300
_cod_database_fobs_code          2224300