K4 Nb6 O17 Gasperin M, le Bihan M Journal of Solid State Chemistry 43 (1982) 346-353 Mecanisme d'hydratation des niobates alcalins lamellaires de formule A4Nb4O17 (A=K,Rb,Cs) _cod_database_code 1001842 _database_code_amcsd 0013485 7.83 33.20999 6.46 90 90 90 P2_1nb atom x y z Nb1 0 .1741 .2017 Nb2 .0078 .8259 .7941 Nb3 -.0011 .1252 .7558 Nb4 .0147 .8728 .2325 Nb5 .2617 .0954 .1369 Nb6 .2614 .0499 .6802 K1 .2484 .2209 .6511 K2 .7509 .2177 .6453 K3 .7499 .0819 .3339 K4 .7542 .0214 .7948 O1 .0431 .2219 .2783 O2 .4862 .2279 .2786 O3 .0131 .1445 .4976 O4 .5189 .1536 .5162 O5 .0228 .0680 .6711 O6 .5142 .0683 .7100 O7 .0053 .1783 .9048 O8 .5091 .1902 .9157 O9 .0189 .1099 .0918 O10 .4885 .1026 .0729 O11 .2599 .1209 .8112 O12 .7567 .1169 .7814 O13 .2354 .0426 .9830 O14 .75 .1676 .2327 O15 .239 .1561 .2230 O16 .2758 .996 .6252 O17 .278 .0737 .3874