Rubidium stannate(IV), Rb~4~SnO~4~
Hoch, Constantin; Röhr, Caroline; Acta Crystallographica Section C 56 (2000) 136–137; doi:10.1107/S0108270199013700

data_2010608
_publ_section_title
;
 Rubidium stannate(IV), Rb~4~SnO~4~
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              136
_journal_page_last               137
_journal_paper_doi               10.1107/S0108270199013700
_journal_volume                  56
_journal_year                    2000
_chemical_formula_sum            'O4 Rb4 Sn'
_chemical_formula_weight         524.57
_chemical_name_systematic
;
tetrarubidiumtetraoxatin(IV)
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_audit_creation_method           SHELXL97
_cell_angle_alpha                71.72(3)
_cell_angle_beta                 79.48(2)
_cell_angle_gamma                66.64(2)
_cell_formula_units_Z            2
_cell_length_a                   6.773(2)
_cell_length_b                   6.776(3)
_cell_length_c                   10.122(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      21.4
_cell_measurement_theta_min      7.3
_cell_volume                     404.0(3)
_computing_cell_refinement       'CAD-4 Software'
_computing_data_collection       'CAD-4 Software (Enraf-Nonius, 1989)'
_computing_data_reduction        'HELENA (Spek, 1993)'
_computing_molecular_graphics
'ORTEP (Johnson, 1968) and DRAWxtl (Finger & Kroeker, 1997)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full .992
_diffrn_measured_fraction_theta_max .992
_diffrn_measurement_device_type  'Enraf-Nonius CAD-4'
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     .71070
_diffrn_reflns_av_R_equivalents  .049
_diffrn_reflns_av_sigmaI/netI    .045
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            1710
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26
_diffrn_reflns_theta_min         5.20
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    27.047
_exptl_absorpt_correction_T_max  .339
_exptl_absorpt_correction_T_min  .109
_exptl_absorpt_correction_type   \y-scan
_exptl_absorpt_process_details   '(North et al., 1968)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    4.312
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             460
_exptl_crystal_size_max          .10
_exptl_crystal_size_mid          .07
_exptl_crystal_size_min          .04
_refine_diff_density_max         4.132
_refine_diff_density_min         -4.368
_refine_ls_extinction_coef       .0139(17)
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 1997)'
_refine_ls_goodness_of_fit_ref   1.101
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     83
_refine_ls_number_reflns         1575
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.101
_refine_ls_R_factor_all          .087
_refine_ls_R_factor_gt           .056
_refine_ls_shift/su_max          <0.001
_refine_ls_shift/su_mean         .000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.1006P)^2^+1.5556P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         .150
_reflns_number_total             1575
_cod_data_source_file            br1266.cif
_cod_data_source_block           I
_cod_original_cell_volume        404.0(2)
_cod_original_formula_sum        'Rb4 Sn O4'
_cod_database_code               2010608
_cod_database_fobs_code          2010608