Figure 4
(a) Crystal packing of Na2S2O5 in the P21/n space group viewed down the unique b axis. Four unit cells of Na2S2O5 in the P21 space group are superimposed to illustrate the subcells responsible for the superpositioned structure determined in P21. The filled circles show the locations of the 21 axes. (b) Crystal packing of Na2S2O5 in the P21 space group viewed down the unique b axis. The filled circle shows the locations of the 21 axis. (c) Inequivalent ions in the P21/n space group superimposed by an approximate (0.25, 0, −0.25) translation. (d) Structure of superimposed Na2S2O5 ions determined in the P21 space group. |