Order-Disorder in the Super-Sodalite Zn3Al6(PO4)12, 4tren, 17H2O (MIL-74): A Combined XRD-NMR Assessment
Lionel Beitone; Clarisse Huguenard; Axel Gansmüller; Marc Henry; Francis Taulelle; Thierry Loiseau; Gérard Férey; Journal of the American Chemical Society 125 (2003) 9102–9110; doi:10.1021/ja0294818

data_4113994
_publ_section_title
;
 Order-Disorder in the Super-Sodalite Zn3Al6(PO4)12, 4tren, 17H2O
 (MIL-74): A Combined XRD-NMR Assessment
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9102
_journal_page_last               9110
_journal_paper_doi               10.1021/ja0294818
_journal_volume                  125
_journal_year                    2003
_chemical_formula_sum            'C24 H118 Al6 N16 O65 P12 Zn3'
_chemical_formula_weight         2400.97
_chemical_name_common            MIL-74
_space_group_IT_number           217
_symmetry_cell_setting           cubic
_symmetry_space_group_name_Hall  'I -4 2 3'
_symmetry_space_group_name_H-M   'I -4 3 m'
_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                90.00
_cell_formula_units_Z            2
_cell_length_a                   16.79420(10)
_cell_length_b                   16.79420(10)
_cell_length_c                   16.79420(10)
_cell_measurement_temperature    293(2)
_cell_volume                     4736.72(5)
_computing_cell_refinement       'Siemens XSCANS'
_computing_data_collection       'Siemens XSCANS'
_computing_data_reduction        'Siemens SHELXTL'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'Siemens SHELXTL'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_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  0.0286
_diffrn_reflns_av_sigmaI/netI    0.0137
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            16637
_diffrn_reflns_theta_full        29.75
_diffrn_reflns_theta_max         29.75
_diffrn_reflns_theta_min         1.71
_exptl_absorpt_coefficient_mu    1.125
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.683
_exptl_crystal_description       rhombododecahedron
_exptl_crystal_F_000             2484
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.24
_geom_special_details
;
 All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;
_refine_diff_density_max         0.716
_refine_diff_density_min         -0.580
_refine_diff_density_rms         0.089
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.04(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.203
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     65
_refine_ls_number_reflns         1247
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.203
_refine_ls_R_factor_all          0.0325
_refine_ls_R_factor_gt           0.0321
_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^)+(0.0618P)^2^+2.9861P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0954
_refine_ls_wR_factor_ref         0.0957
_refine_special_details
;
 Refinement of F^2^ against ALL reflections.  The weighted R-factor wR and
 goodness of fit S are based on F^2^, conventional R-factors R are based
 on F, with F set to zero for negative F^2^. The threshold expression of
 F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is
 not relevant to the choice of reflections for refinement.  R-factors based
 on F^2^ are statistically about twice as large as those based on F, and R-
 factors based on ALL data will be even larger.
;
_reflns_number_gt                1229
_reflns_number_total             1247
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0294818si20021126_120225.cif
_cod_data_source_block           MIL-74
_cod_depositor_comments
;
 Adding additional data items after consulting the original supplementary
 material.

 Antanas Vaitkus,
 2018-11-16

 Replacing the _cod_related_optimal_structure data name with the shorter
 version (_cod_related_optimal_struct) that is formally defined in the
 'cif_cod' dictionary.

 Antanas Vaitkus,
 2018-11-16

 Removed the _cod_suboptimal_structure data item in preparation for
 its deprecation. The fact that the structure is a suboptimal one
 should be derived from the presence of the _cod_related_optimal_struct
 data item.

 Antanas Vaitkus,
 2019-05-21
;
_cod_related_optimal_struct      1101222
_cod_database_code               4113994