data_7221201
_publ_section_title
;
 Ternaere Erdalkali-Element(V)-Verbindungen A Mg2 B2 mit A = Ca, Sr, Ba
 und B = As, Sb, Bi
;
_journal_name_full
;
Zeitschrift fuer Naturforschung, Teil B. Anorganische Chemie, Organische 
Chemie (2,1947-32,1977)
;
_journal_page_first              612
_journal_page_last               616
_journal_volume                  32
_journal_year                    1977
_chemical_formula_sum            'Mg2 Sb2 Sr'
_chemical_name_systematic        'Sr Mg2 Sb2'
_space_group_IT_number           164
_symmetry_space_group_name_Hall  '-P 3 2"'
_symmetry_space_group_name_H-M   'P -3 m 1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            1
_cell_length_a                   4.7
_cell_length_b                   4.7
_cell_length_c                   7.83
_cell_volume                     149.792
_citation_journal_id_ASTM        ZENBAX
_cod_data_source_file            Deller_ZENBAX_1977_144.cif
_cod_data_source_block           Mg2Sb2Sr1
_cod_original_cell_volume        149.7918
_cod_chemical_formula_sum_orig   'Mg2 Sb2 Sr1'
_cod_database_code               7221201
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x-y,z
-x+y,-x,z
y,x,-z
-x,-x+y,-z
x-y,-y,-z
-x,-y,-z
y,-x+y,-z
x-y,x,-z
-y,-x,z
x,x-y,z
-x+y,y,z
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
Mg1 Mg 0.3333 0.6667 0.6286 1 0.0
Sb1 Sb 0.3333 0.6667 0.2571 1 0.0
Sr1 Sr 0 0 0 1 0.0
