Ba1.5 K3 O26 Si4 Ta6
Choisnet J, Nguyen N, Raveau B
Materials Research Bulletin 12 (1977) 91-96
Silicotantalates et siliconiobates non-stoechiometriques: les composes
K6-2x Bax Ta6 Si4 O26 (0<x<3) et K8 M14 Si4 O47 (M = Ta, Nb)
_cod_database_code 1001275
_database_code_amcsd 0014255
9.035 9.035 7.79 90 90 120 P-62m
atom    x    y    z occ
Ba1  .586    0   .5  .5
K1   .586    0   .5  .5
K2    .61    0    0  .5
Ta1  .239    0 .249
Si1   1/3  2/3 .208
O1    1/3  2/3    0
O2   .262    0    0
O3   .811    0 .269
O4     .5 .176 .289
O5   .242    0   .5