Cs0.75 K0.25 Nb O11 Ti U2 Gasperin M Acta Crystallographica C42 (1986) 136-138 (Cs.75 K.25) (Nb, Ti) U2 O11: un Niobotitanouranate Alcalin de Type Sructural Nouveau _cod_database_code 1001337 _database_code_amcsd 0010026 7.630 10.923 13.609 90 90 90 Amam atom x y z occ U1 .25 .22691 .2691 Nb1 0 0 .3692 .5 Ti1 0 0 .3692 .5 Cs1 0 0 0 .75 O1 0 .5 0 .75 O2 .0488 .3994 0 .125 O3 .25 .8161 .1248 O4 .25 .1397 .1502 O5 .25 .5413 .1467 O6 .0347 .3532 .1994 K1 .0188 .1584 0 .125