Hexaaquamagnesium(II) bis[(4-oxo-4<i>H</i>-pyridin-1-yl)acetate] dihydrate
Zhao, Jing-Gui; Zhang, Zhu-Yan; Huo, Li-Hua; Gao, Shan; Acta Crystallographica Section E 60 (2004) m1987–m1988; doi:10.1107/S1600536804031113

data_2204758
_publ_section_title
;
 Hexaaquamagnesium(II) bis[(4-oxo-4<i>H</i>-pyridin-1-yl)acetate]
 dihydrate
;
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m1987
_journal_page_last               m1988
_journal_paper_doi               10.1107/S1600536804031113
_journal_volume                  60
_journal_year                    2004
_chemical_formula_iupac          '[Mg (H2 O)6] (C7 H6 N O3)2, 2H2 O'
_chemical_formula_moiety         'H12 Mg O6 2+ , 2C7 H6 N O3 - , 2H2 O'
_chemical_formula_sum            'C14 H28 Mg N2 O14'
_chemical_formula_weight         472.69
_chemical_name_systematic
;
Hexaaquamagnesium(II) bis[(4-oxo-4H-pyridin-1-yl)acetate] dihydrate
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 99.21(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   12.486(3)
_cell_length_b                   12.904(3)
_cell_length_c                   6.8131(14)
_cell_measurement_reflns_used    9023
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.45
_cell_measurement_theta_min      3.16
_cell_volume                     1083.6(4)
_computing_cell_refinement       RAPID-AUTO
_computing_data_collection       'RAPID-AUTO (Rigaku, 1998)'
_computing_data_reduction        'CrystalStructure (Rigaku/MSC, 2002)'
_computing_molecular_graphics    'ORTEPII (Johnson, 1976)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 10
_diffrn_measured_fraction_theta_full 1.00
_diffrn_measured_fraction_theta_max 1.00
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       \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  0.0224
_diffrn_reflns_av_sigmaI/netI    0.0150
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            9164
_diffrn_reflns_theta_full        27.5
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.16
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.155
_exptl_absorpt_correction_T_max  0.974
_exptl_absorpt_correction_T_min  0.953
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(ABSCOR; Higashi, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.449
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       Prism
_exptl_crystal_F_000             500
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.39
_refine_diff_density_min         -0.27
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.083
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     166
_refine_ls_number_reflns         2477
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.0604
_refine_ls_R_factor_gt           0.0549
_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^)+(0.0802P)^2^+1.5072P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1726
_refine_ls_wR_factor_ref         0.1769
_reflns_number_gt                2212
_reflns_number_total             2477
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ng6065.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               2204758
_cod_database_fobs_code          2204758