Reactivity of Pyridine-2,4,6-tricarboxylic Acid toward Zn(II) Salts under Different Reaction Conditions
Sujit K. Ghosh; G. Savitha; Parimal K. Bharadwaj; Inorganic Chemistry 43 (2004) 5495–5497; doi:10.1021/ic049490c

data_4311496
_publ_section_title
;
 Reactivity of Pyridine-2,4,6-tricarboxylic Acid toward Zn(II) Salts under
 Different Reaction Conditions
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              5495
_journal_page_last               5497
_journal_paper_doi               10.1021/ic049490c
_journal_volume                  43
_journal_year                    2004
_chemical_formula_moiety         'C24 H21 N3 O24 Zn3, 7(H2 O)'
_chemical_formula_sum            'C24 H35 N3 O31 Zn3'
_chemical_formula_weight         1057.65
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           146
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'R 3'
_symmetry_space_group_name_H-M   'R 3 :H'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            3
_cell_length_a                   17.1581(2)
_cell_length_b                   17.1581(2)
_cell_length_c                   10.4309(1)
_cell_measurement_reflns_used    999
_cell_measurement_temperature    100
_cell_measurement_theta_max      28.23
_cell_measurement_theta_min      2.04
_cell_volume                     2659.44(5)
_computing_cell_refinement       'SAINT 6.45 ( Bruker, 2003)'
_computing_data_collection       'SMART 5.628 (Bruker, 2003)'
_computing_data_reduction        'SAINT 6.45  (Bruker, 2003)'
_computing_molecular_graphics    'Diamond 2.1'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR-97
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker SMART APEX'
_diffrn_measurement_method       /w-scans
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0690
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            2842
_diffrn_reflns_theta_full        28.32
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         2.37
_diffrn_standards_decay_%        <0.08
_exptl_absorpt_coefficient_mu    0.712
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    0.660
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       hexagonal
_exptl_crystal_F_000             538
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.11
_refine_diff_density_max         3.236
_refine_diff_density_min         -1.418
_refine_diff_density_rms         0.293
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(4)
_refine_ls_extinction_coef       0.0000(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.084
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         2842
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.084
_refine_ls_R_factor_all          0.1114
_refine_ls_R_factor_gt           0.0960
_refine_ls_shift/su_max          1.023
_refine_ls_shift/su_mean         0.136
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1891P)^2^+42.1271P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2529
_refine_ls_wR_factor_ref         0.2735
_reflns_number_gt                2377
_reflns_number_total             2842
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic049490csi20040709_100307_4.cif
_cod_data_source_block           compound4
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal' according
to '/home/adriana/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 1555 2011-01-17 13:19:09Z saulius 

The following automatic conversions were performed:

'_cell_measurement_temperature' value '100K' was changed to '100' -
the value should be numeric and without a unit
designator.

'_diffrn_ambient_temperature' value '100K' was changed
to '100' - the value should be numeric and without a unit designator.

Automatic conversion script
Id: cif_fix_values 1569 2011-02-09 13:29:24Z adriana 

2021-04-13
Formula fixed to be consistent with given Z value
                 miguel
;
_cod_original_formula_sum            'C8 H11.67 N O10.33 Zn'
_cod_original_formula_weight         352.55
_cod_original_formula_moiety         'C8 H11.67 N O10.33 Zn'
_cod_original_cell_volume        2659.4(4)
_cod_original_sg_symbol_H-M      'R 3'
_cod_database_code               4311496