Effect of the cation size on the framework structures of magnesium tungstate, A4Mg(WO4)3 (A = Na, K), R2Mg2(WO4)3 (R = Rb, Cs).
Han, Shujuan; Wang, Ying; Jing, Qun; Wu, Hongping; Pan, Shilie; Yang, Zhihua; Dalton transactions (Cambridge, England : 2003) 44 (2015) 5810–5817; doi:10.1039/c5dt00332f

data_7034015
_publ_section_title
;
 Effect of the cation size on the framework structures of magnesium
 tungstate, A4Mg(WO4)3 (A = Na, K), R2Mg2(WO4)3 (R = Rb, Cs).
;
_journal_issue                   12
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5810
_journal_page_last               5817
_journal_paper_doi               10.1039/c5dt00332f
_journal_volume                  44
_journal_year                    2015
_chemical_formula_sum            'Mg2 O12 Rb2 W3'
_chemical_formula_weight         963.11
_chemical_name_common            Mg2O12Rb2W3
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           198
_symmetry_cell_setting           cubic
_symmetry_space_group_name_Hall  'P 2ac 2ab 3'
_symmetry_space_group_name_H-M   'P 21 3'
_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            4
_cell_length_a                   10.7656(6)
_cell_length_b                   10.7656(6)
_cell_length_c                   10.7656(6)
_cell_measurement_reflns_used    4217
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.60
_cell_measurement_theta_min      3.28
_cell_volume                     1247.71(12)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0433
_diffrn_reflns_av_sigmaI/netI    0.0252
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            7753
_diffrn_reflns_theta_full        27.60
_diffrn_reflns_theta_max         27.60
_diffrn_reflns_theta_min         2.68
_exptl_absorpt_coefficient_mu    35.495
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.3848
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   Face-indexed
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    5.127
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1664
_exptl_crystal_size_max          0.228
_exptl_crystal_size_mid          0.149
_exptl_crystal_size_min          0.123
_refine_diff_density_max         1.009
_refine_diff_density_min         -0.643
_refine_diff_density_rms         0.167
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.02(3)
_refine_ls_extinction_coef       0.00160(10)
_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   1.073
_refine_ls_matrix_type           full
_refine_ls_number_parameters     59
_refine_ls_number_reflns         979
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.0180
_refine_ls_R_factor_gt           0.0172
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0148P)^2^+4.6263P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0386
_refine_ls_wR_factor_ref         0.0389
_reflns_number_gt                963
_reflns_number_total             979
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5dt00332f5.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Cubic' changed to 'cubic' according
to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

 Adding full bibliography for 7034012--7034015.cif.
;
_cod_original_sg_symbol_H-M      P2(1)3
_cod_original_formula_sum        Mg2O12Rb2W3
_cod_database_code               7034015