data_5910177
loop_
_publ_author_name
'Wyckoff, R. W. G.'
_publ_section_title
;
Page 72 & 74 from the Structure of Crystals, vol. 3 by Wyckoff R W G. 
published by Interscience Publishers, Inc. in 1951 
;
_journal_name_full               'The Structure of Crystals'
_journal_page_first              72
_journal_page_last               74
_journal_volume                  3
_journal_year                    1951
_chemical_formula_structural     Al2HgSe4
_chemical_formula_sum            'Al2 Hg Se4'
_space_group_IT_number           82
_symmetry_cell_setting           tetragonal
_symmetry_Int_Tables_number      82
_symmetry_space_group_name_Hall  'I -4'
_symmetry_space_group_name_H-M   'I -4'
_audit_creation_date             2006-02-07
_audit_creation_method
;
Page 72 & 74 from the Structure of Crystals, vol. 3 by Wyckoff R W G. 
published by Interscience Publishers, Inc. in 1951 
;
_audit_update_record
'created by Girish Upreti, Portland State University'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   5.708
_cell_length_b                   5.708
_cell_length_c                   10.74
_cell_volume                     349.923
_cod_database_code               5910177
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
y,-x,-z
-y,x,-z
-x,-y,z
x+1/2,y+1/2,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
loop_
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_label
0.00000 0.00000 0.00000 Hg1
0.50000 0.50000 0.50000 Hg2
0.00000 0.00000 0.50000 Al1
0.50000 0.50000 0.00000 Al2
0.00000 0.50000 0.25000 Al3
0.50000 0.00000 0.75000 Al4
0.27500 0.26500 0.13800 Se1
-0.27500 -0.26500 0.13800 Se2
-0.26500 0.27500 -0.13800 Se3
0.26500 -0.26500 -0.13800 Se4