Ba2 Bi0.22 Cu Hg0.78 O4.28 Pelloquin D, Maignan A, Guesdon A, Hardy V, Raveau B Physica C 265 (1996) 5-12 Single crystal study of the "1201" superconductor Hg0.8Bi0.2Ba2CuO4+d _cod_database_code 1001762 _database_code_amcsd 0015078 3.8800 3.8800 9.492 90 90 90 P4/mmm atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Hg1 0 0 0 .78 .0167 .0167 .0074 0 0 0 Bi1 0 0 0 .22 .0167 .0167 .0074 0 0 0 Ba1 .5 .5 .2963 .076 .076 .0074 0 0 0 Cu1 0 0 .5 .0034 .0034 .007 0 0 0 O1 .5 0 .5 .007 .011 .0010 0 0 0 O2 0 0 .209 .027 .027 .006 0 0 0 O3 .38 .38 0 .07