data_2310070
_publ_section_title
;
 The crystal structure of Ag Ca and Ag2 Ca
;
_journal_name_full               'Acta Crystallographica (1,1948-23,1967)'
_journal_page_first              775
_journal_page_last               775
_journal_volume                  10
_journal_year                    1957
_chemical_formula_sum            'Ag2 Ca'
_chemical_name_systematic        'Ag2 Ca'
_space_group_IT_number           74
_symmetry_space_group_name_Hall  '-I 2b 2'
_symmetry_space_group_name_H-M   'I m m a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.26
_cell_length_b                   4.68
_cell_length_c                   8.14
_cell_volume                     276.571
_citation_journal_id_ASTM        ACCRA9
_[local]_cod_data_source_file    silver2-3_32.cif
_[local]_cod_data_source_block   Ag2Ca1
_[local]_cod_chemical_formula_sum_orig 'Ag2 Ca1'
_cod_original_cell_volume        276.5712
_cod_database_code               2310070
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y+1/2,z
x,-y,-z
-x,y+1/2,-z
-x,-y,-z
x,y-1/2,-z
-x,y,z
x,-y-1/2,z
x+1/2,y+1/2,z+1/2
-x+1/2,-y+1,z+1/2
x+1/2,-y+1/2,-z+1/2
-x+1/2,y+1,-z+1/2
-x+1/2,-y+1/2,-z+1/2
x+1/2,y,-z+1/2
-x+1/2,y+1/2,z+1/2
x+1/2,-y,z+1/2
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Ag1 Ag 0.2 0.25 0.08 1 0.0
Ca1 Ca 0 0.25 0.645 1 0.0
