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_7034013
_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            'K4 Mg O12 W3'
_chemical_formula_weight         924.26
_chemical_name_common            K4MgW3O12
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                93.249(10)
_cell_angle_beta                 106.624(10)
_cell_angle_gamma                105.781(11)
_cell_formula_units_Z            2
_cell_length_a                   7.7255(14)
_cell_length_b                   9.9119(19)
_cell_length_c                   10.0401(18)
_cell_measurement_reflns_used    4673
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.55
_cell_measurement_theta_min      2.16
_cell_volume                     701.3(2)
_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      293(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_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  0.0405
_diffrn_reflns_av_sigmaI/netI    0.0409
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            13490
_diffrn_reflns_theta_full        27.59
_diffrn_reflns_theta_max         27.59
_diffrn_reflns_theta_min         2.14
_exptl_absorpt_coefficient_mu    25.824
_exptl_absorpt_correction_T_max  0.36439
_exptl_absorpt_correction_T_min  0.16343
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   Face-indexed
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    4.377
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             812
_exptl_crystal_size_max          0.195
_exptl_crystal_size_mid          0.071
_exptl_crystal_size_min          0.063
_refine_diff_density_max         2.109
_refine_diff_density_min         -2.444
_refine_diff_density_rms         0.316
_refine_ls_extinction_coef       0.00114(11)
_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   1.089
_refine_ls_matrix_type           full
_refine_ls_number_parameters     125
_refine_ls_number_reflns         3192
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.0411
_refine_ls_R_factor_gt           0.0303
_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^)+(0.0233P)^2^+4.0465P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0619
_refine_ls_wR_factor_ref         0.0658
_reflns_number_gt                2662
_reflns_number_total             3192
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5dt00332f3.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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      P-1
_cod_database_code               7034013