Cs8 Nb10 O41 Si6
Crosnier M, Pagnoux C, Guyomard D, Verbaere A, Piffard Y, Tournoux M
European Journal of Solid State and Inorganic Chemistry 28 (1991) 971-981
The crystal structure of a novel cyclotrisilicate: Cs8Nb10O23(Si3O9)2.
Its relationship with the pyrochlore and benitoite types
_cod_database_code 1000469
_database_code_amcsd 0012545
7.342 7.342 22.16599 90 90 120 P6_3/mmc
atom     x     y      z  occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Cs1    1/3   2/3 .15558       .0311  .0311  .0276  .0156      0      0
Cs2      0     0 .09183       .0345  .0345  .0233  .0173      0      0
Nb1     .5     0      0       .0264  .0214  .0235  .0107 -.0003 -.0006
Nb2    1/3   2/3 .63573       .0176  .0176  .0158  .0088      0      0
Si1  .8623 .7246    .25       .0011  .0004  .0017  .0002      0      0
O1    .117  .234    .25       .0010  .0007  .0056  .0004      0      0
O2   .2090 .4180  .4816 .917  .0032  .0034  .0031  .0017 -.0003 -.0006
O3   .5457 .0914  .0863       .0043  .0016  .0019  .0008 -.0002 -.0004
O4   .2057 .4114  .6898       .0048  .0017  .0018  .0009  .0003  .0006