data_9008252
_publ_section_title
;
 The crystal structure of mercury(I) dihydrogenphosphate, Hg2(H2PO4)2
;
_journal_name_full               'Zeitschrift fur Kristallographie'
_journal_page_first              321
_journal_page_last               329
_journal_volume                  141
_journal_year                    1975
_chemical_formula_structural     Hg2(H2PO4)2
_chemical_formula_sum            'Hg O4 P'
_space_group_IT_number           14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_cell_angle_alpha                90
_cell_angle_beta                 92.172
_cell_angle_gamma                90
_cell_length_a                   6.0754
_cell_length_b                   14.5034
_cell_length_c                   4.7280
_cell_volume                     416.303
_exptl_crystal_density_diffrn    4.716
_[local]_cod_chemical_formula_sum_orig 'Hg P O4'
_cod_database_code               9008252
loop_
_symmetry_equiv_pos_as_xyz
x,y,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_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Hg 0.30421 0.01696 0.05308
P 0.98860 0.15230 0.40500
O1 0.00100 0.06770 0.21000
O2 0.18800 0.14420 0.62400
O3 0.77100 0.13790 0.56700
O4 0.99200 0.24500 0.26300
