data_1010101
_publ_section_title
;
Structures of Complex Fluorides. Potassium Hexafluogermanate and
Ammonium Hexafluogermanate
;
_journal_coden_ASTM              JACSAT
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              2849
_journal_page_last               2852
_journal_paper_doi               10.1021/ja01265a082
_journal_volume                  61
_journal_year                    1939
_chemical_formula_structural     'K2 Ge F6'
_chemical_formula_sum            'F6 Ge K2'
_chemical_name_systematic        'Potassium hexafluorogermanate'
_space_group_IT_number           164
_symmetry_cell_setting           trigonal
_symmetry_Int_Tables_number      164
_symmetry_space_group_name_Hall  '-P 3 2"'
_symmetry_space_group_name_H-M   'P -3 m 1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            1
_cell_length_a                   5.62(1)
_cell_length_b                   5.62(1)
_cell_length_c                   4.65(1)
_cell_volume                     127.2
_exptl_crystal_density_meas      3.32
_cod_database_code               1010101
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x-y,z
y-x,-x,z
-y,-x,z
x,x-y,z
y-x,y,z
-x,-y,-z
y,y-x,-z
x-y,x,-z
y,x,-z
-x,y-x,-z
x-y,-y,-z
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
_atom_site_calc_flag
K1 K1+ 2 d 0.3333 0.6667 0.7 1. 0 d
Ge1 Ge4+ 1 a 0. 0. 0. 1. 0 d
F1 F1- 6 i 0.148 0.852 0.22 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
K1+ 1.000
Ge4+ 4.000
F1- -1.000
