Figure 9
SXDP pattern of NOTT-300·4SO2: [Al2(OH)2(C16H6O8)](SO2)4 [λ = 0.49481 (2) Å] and Rietveld refinement results (main plot) with a refinement indication of Rp = 1.01%. (a) The crystal structure with adsorbed SO2 viewed along the c axis; atoms are shown as blue (Al), red (O), black (C), yellow (S) and white (H). (b) One of the four molecular arrangements in the channel, showing the locations of the SO2(I) and SO2(II) sites, and the S—O and O—O bonds, viewed along the a axis. |