Cu8 La6.4 O20 Sr1.6 Er Rakho L, Michel C, Raveau B Journal of Solid State Chemistry 73 (1988) 514-519 La8-x Srx Cu8 O20: An Oxygen-Deficient Perovskite Built of CuO6, CuO5, and CuO4 Polyhedra _cod_database_code 1001365 _database_code_amcsd 0013615 10.8461 10.8461 3.8631 90 90 90 P4/mbm atom x y z occ La1 .2621 .4693 .5 .8 Sr1 .2621 .4693 .5 .2 Cu1 0 0 0 Cu2 .5 0 0 Cu3 .2196 .7196 0 O1 0 0 .5 O2 .5 0 .5 O3 .2169 .7169 .5 O4 .3757 .8757 0 O5 .1615 .0960 0