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![[Figure 3]](vp3057fig3mag.jpg)
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Figure 3
(a) The molecular connectivity of psilocybin (taken from the trihydrate crystal structure), with displacement ellipsoids drawn at the 50% probability level. Colour code: C grey, H white, N blue, O red and P orange. Crystal packing of (b) the anhydrous Polymorph A′ and (c) the trihydrate form, both viewed down the b axis. Molecules are shown in stick representation, with the exception of the water O atoms in the trihydrate, which are rendered as red space-filling spheres to highlight their positions within the channels. Note the significant contraction of the unit cell along the c axis upon dehydration, corresponding to the collapse of the lattice into the anhydrous phase. |
![[Figure 3]](vp3057fig3.jpg)
 | STRUCTURAL CHEMISTRY |
ISSN: 2053-2296
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