Bi0.75 O1.36 Sr0.25 Mercurio D, Champarnaud-Mesjard J, Frit B, Conflant P, Boivin J, Vogt T Journal of Solid State Chemistry 112 (1994) 1-8 Thermal evolution of the crystal structure of the rhombohedral Bi0.75Sr0.25O1.375 phase: a single crystal neutron diffraction study _cod_database_code 1004102 _database_code_amcsd 0013819 3.983 3.983 28.68999 90 90 120 R-3m atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Sr1 0 0 0 .75 .0224 .0224 .0511 .0112 0 0 Bi1 0 0 0 .25 .0224 .0224 .0511 .0112 0 0 Bi2 0 0 .2246 .0325 .0325 .0254 .0163 0 0 O1 0 0 .2948 .0756 .0756 .0287 .0586 0 0 O2 0 0 .0992 .1833 .0508 .0508 .0473 .0353 0 0 O3 .0711 .1422 .105 .1611 O4 0 0 .4468 .3667