data_9007784
_publ_section_title
;
 Dimagnesium platinum silicon
;
_journal_name_full               'Acta Crystallographica, Section C'
_journal_page_first              1092
_journal_page_last               1093
_journal_paper_doi               10.1107/S0108270189014150
_journal_volume                  46
_journal_year                    1990
_chemical_formula_structural     Mg2PtSi
_chemical_formula_sum            'Mg2 Pt Si'
_space_group_IT_number           194
_symmetry_space_group_name_Hall  '-P 6c 2c'
_symmetry_space_group_name_H-M   'P 63/m m c'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   4.254
_cell_length_b                   4.254
_cell_length_c                   8.542
_cell_volume                     133.871
_exptl_crystal_density_diffrn    6.742
_cod_database_code               9007784
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-x+y,1/2+z
x,x-y,1/2-z
-x+y,-x,1/2-z
x-y,x,1/2+z
-y,-x,z
y,x,-z
y,-x+y,-z
-y,x-y,z
x-y,-y,1/2+z
-x+y,y,1/2-z
x,y,1/2-z
-x,-y,1/2+z
x,x-y,z
-x,-x+y,-z
x-y,x,-z
-x+y,-x,z
y,x,1/2+z
-y,-x,1/2-z
-y,x-y,1/2-z
y,-x+y,1/2+z
-x+y,y,z
x-y,-y,-z
-x,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Mg 0.33333 0.66667 0.57820 0.03800
Pt 0.33333 0.66667 0.25000 0.00850
Si 0.00000 0.00000 0.25000 0.01900
