; Chemistry of Materials  (2001) –; doi:

data_4000093
_journal_name_full               'Chemistry of Materials'
_journal_year                    2001
_chemical_formula_sum            'H17 Na8 O47.5 Si12 Ti5'
_chemical_formula_weight         1537.64
_space_group_IT_number           65
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-C 2 2'
_symmetry_space_group_name_H-M   'C m m m'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            1
_cell_length_a                   23.2272(4)
_cell_length_b                   7.1751(11)
_cell_length_c                   6.9727(6)
_cell_measurement_reflns_used    ?
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      ?
_cell_measurement_theta_min      ?
_cell_volume                     1162.1(2)
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean ?
_diffrn_measurement_device_type  ?
_diffrn_measurement_method       ?
_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  0.0760
_diffrn_reflns_av_sigmaI/netI    0.0798
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            981
_diffrn_reflns_theta_max         24.93
_diffrn_reflns_theta_min         4.85
_diffrn_standards_decay_%        ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_number         ?
_exptl_absorpt_coefficient_mu    1.334
_exptl_absorpt_correction_T_max  0.9868
_exptl_absorpt_correction_T_min  0.9008
_exptl_absorpt_correction_type   ?
_exptl_absorpt_process_details   ?
_exptl_crystal_colour            ?
_exptl_crystal_density_diffrn    2.197
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       ?
_exptl_crystal_F_000             763
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.01
_exptl_crystal_size_min          0.01
_refine_ls_extinction_coef       ?
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.119
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     83
_refine_ls_number_reflns         582
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.119
_refine_ls_R_factor_all          0.1019
_refine_ls_R_factor_gt           0.0677
_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^)+(0.0600P)^2^+25.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1593
_refine_ls_wR_factor_ref         0.1795
_reflns_number_gt                413
_reflns_number_total             582
_reflns_threshold_expression     >2sigma(I)
_cod_original_sg_symbol_H-M      Cmmm
_cod_original_formula_sum        'H17 Na8 O47.50 Si12 Ti5'
_cod_database_code               4000093