Downeyite Stahl K, Legros J P, Galy J Zeitschrift fur Kristallographie 202 (1992) 99-107 The crystal structure of SeO2 at 139 and 286 K Note: T = 139 K Locality: synthetic _database_code_amcsd 0011027 8.3218 8.3218 5.0541 90 90 90 P4_2/mbc atom x y z Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Se .13396 .20929 0 .45 .00122 .00154 .00566 .00005 0 0 O1 .13752 .36248 .25 .74 .00262 .00262 .00745 .00055 .00102 .00102 O2 -.05789 .17358 0 .90 .00170 .00366 .01178 -.00039 0 0