Ba Nb4 O17 Ti3
Mezaoui D, Michel C, Groult D, Raveau B
Materials Research Bulletin 21 (1986) 1039-1044
A M3 O9 (M2 O4)n: A series of oxides derived from the rutile
structure by chemical twinning
_cod_database_code 1001353
_database_code_amcsd 0014320
6.639 8.957 21.145 90 90 90 Cmcm
atom    x     y     z  occ
Ba1     0 .9807   .25
Ti1     0 .1026 .0568   .6
Nb1     0 .1026 .0568   .4
Ti2     0 .3446 .3404 .225
Nb2     0 .3446 .3404 .775
Ti3     0 .7359 .3878   .3
Nb3     0 .7359 .3878   .7
Ti4     0    .5    .5  .75
Nb4     0    .5    .5  .25
O1      0  .546 .3365
O2      0  .304   .25
O3      0  .315 .4549
O4      0  .889 .4539
O5      0  .120 .3570
O6   .195  .197 .6571
O7   .280  .096 .4562