Figure 9
3D-ΔPDF map of Mn[Co] at different temperatures, the section uv0.17 containing the signal from the Co atom to the nearest zeolitic oxygen: (a) at room temperature the signal is weak and centred near xxx with x = 0.21 which corresponds to (d) a disordered configuration of water; at low temperatures the peak becomes more pronounced and moves to x = 0.17 for a flash-frozen sample, (b), and to x = 0.19 for slowly cooled sample, (c), which corresponds to a better defined position of zeolitic water, (e). |