Na4OI2 Sabrowsky H, Hippler K, Sitta S, Vogt P, Walz L Acta Crystallographica C46 (1990) 368-369 Structure of Na4OI2 _database_code_amcsd 0010109 4.655 4.655 15.940 90 90 90 I4/mmm atom x y z Uiso Na1 0 .5 0 .0250 Na2 0 0 .1429 .0272 O1 0 0 0 .0187 I1 0 0 .3467 .0203