(Cs2AgBiBr6)4 (Fm-3m) ~ Cs2AgBiBr6_mp-1 1 0.000000 5.583188 5.583188 5.583188 0.000000 5.583188 5.583188 5.583188 0.000000 Cs Ag Bi Br 2 1 1 6 Direct configuration= 1 0.25000000 0.25000000 0.25000000 0.75000000 0.75000000 0.75000000 0.50000000 0.50000000 0.50000000 0.00000000 0.00000000 0.00000000 0.74581981 0.25418019 0.25418019 0.25418019 0.74581981 0.74581981 0.25418019 0.25418019 0.74581981 0.74581981 0.74581981 0.25418019 0.25418019 0.74581981 0.25418019 0.74581981 0.25418019 0.74581981