Na0.35 O3 W Haegg G Nature 135 (1935) 874-874 The Spinels and the Cubic Sodium - Tungsten Bronzes as New Examples of Structures with Vacant Lattice Points _cod_database_code 1010420 _database_code_amcsd 0017344 3.813 3.813 3.813 90 90 90 Pm3m atom x y z occ Na1 0 0 0 .35 W1 .5 .5 .5 O1 .5 .5 0