(NH4)2S2O8 Zachariasen W H, Mooney R C L Zeitschrift fur Kristallographie 88 (1934) 63-81 The atomic arrangement in ammonium and caesium persulphate (NH4)2S2O8 and Cs2S2O8, and the structure of the persulphate group _database_code_amcsd 0010520 7.83 8.04 6.13 90 95.15 90 P2_1/n atom x y z N .144 .125 .250 S .136 .350 .708 O1 .042 .500 .611 O2 .028 .194 .681 O3 .208 .417 .931 O4 .292 .347 .597