Ba Cu3 O7.01 Pb Sr Y Rouillon T, Caignaert V, Hervieu M, Michel C, Groult D, Raveau B Journal of Solid State Chemistry 97 (1992) 56-64 PbBaSrYCu3O7: a "0223" structure, intergrowth of single rock salt layers and triple oxygen-deficient perovskite layers; X-ray, neutron diffraction, and electron microscopy study _cod_database_code 1001595 _database_code_amcsd 0013731 3.8436 3.8436 27.42599 90 90 90 I4mm atom x y z occ Cu1 0 0 0 Ba1 .5 .5 .0704 .7 Sr1 .5 .5 .0704 .3 Cu2 0 0 .1533 Pb1 .5 .5 .2152 Ba2 0 0 .3119 .3 Sr2 0 0 .3119 .7 Cu3 .5 .5 .3789 Y1 0 0 .4395 O1 0 .5 -.0079 O2 0 0 .0874 O3 .1366 0 .2190 .25 O4 .5 .5 .2929 O5 0 .5 .3869 O6 .5 .5 .4395 .01