Bi2 Cu2 O11 Sr4 Pelloquin D, Caldes M, Maignan A, Michel C, Hervieu M, Raveau B Physica C 208 (1993) 121-129 The bismuth oxycarbonate Bi2Sr4Cu2CO3O8. A new superconductor with a Tc of 30 K _cod_database_code 1001583 _database_code_amcsd 0015044 5.466 5.460 39.500 90 90 90 Abmm atom x y z occ Bi1 .25 0 .04 Sr1 .75 0 .109 Sr2 .75 0 .197 Cu1 .25 0 .155 C1 .25 0 .25 O1 .75 0 .04 O2 .25 0 .1 O3 0 .25 .15 O4 .5 .25 .15 O5 .25 0 .22 .5 O6 0 .25 .25 .5 O7 .5 .25 .25 .5 O8 .082 .168 .25 .5