data_9007539
_publ_section_title
;
 Rutile-type compounds. VI.
 SiO2, GeO2 and a comparison with other rutile-type structures
;
_journal_name_full               'Acta Crystallographica, Section B'
_journal_page_first              2133
_journal_page_last               2139
_journal_volume                  27
_journal_year                    1971
_chemical_formula_structural     ZnF2
_chemical_formula_sum            'F2 Zn'
_space_group_IT_number           136
_symmetry_space_group_name_Hall  '-P 4n 2n'
_symmetry_space_group_name_H-M   'P 42/m n m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   4.7048
_cell_length_b                   4.7048
_cell_length_c                   3.1338
_cell_volume                     69.367
_exptl_crystal_density_diffrn    4.950
_[local]_cod_chemical_formula_sum_orig 'Zn F2'
_cod_database_code               9007539
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,-x,z
y,x,-z
1/2+y,1/2-x,1/2-z
1/2-y,1/2+x,1/2+z
1/2+x,1/2-y,1/2+z
1/2-x,1/2+y,1/2-z
x,y,-z
-x,-y,z
y,x,z
-y,-x,-z
1/2-y,1/2+x,1/2-z
1/2+y,1/2-x,1/2+z
1/2-x,1/2+y,1/2+z
1/2+x,1/2-y,1/2-z
-x,-y,-z
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Zn 0.00830 0.00830 0.00781 -0.00067 0.00000 0.00000
F 0.01189 0.01189 0.01045 -0.00258 0.00000 0.00000
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Zn 0.00000 0.00000 0.00000
F 0.30240 0.30240 0.00000
