Cu2 Hg0.3 O9 Pr2 Sr2 Tl0.7 Hervieu M, Van Tendeloo G, Michel C, Martin C, Maignan A, Raveau B Journal of Solid State Chemistry 115 (1995) 525-531 Synthesis and characterization of mercury-based "1222" cuprates (Hg1-xMx) (Sr,Ba)2 Pr2 Cu2 O9-d _cod_database_code 1001650 _database_code_amcsd 0013858 3.8642 3.8642 29.56799 90 90 90 I4/mmm atom x y z occ Hg1 0 0 0 .3 Tl1 0 0 0 .7 Sr1 0 0 .5847 Pr1 0 0 .7055 Cu1 0 0 .1480 O1 0 0 .068 O2 0 .5 .1482 O3 0 .5 .25 O4 0 0 .5