Psilocybin: crystal structure solutions enable phase analysis of prior art and recently patented examples

Sherwood, A.M.; Kargbo, R.B.; Kaylo, K.W.; Cozzi, N.V.; Meisenheimer, P.; Kaduk, J.A.

doi:10.1107/S2053229621013164

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 20
(a) Comparison of PXRD patterns for Sample 4 collected by transmission geometry (red) and reflection-based configurations (blue). (b) The Rietveld plot for the refinement of psilocybin Sample 4 (Hydrate A and Polymorph A) using transmission data. The blue crosses represent the observed data points and the green line is the calculated pattern. The cyan curve is the normalized error plot obtained by transmission geometry. (c) The Rietveld plot for the refinement of psilocybin Sample 4 (Hydrate A and Polymorph A) using reflection data. The blue crosses represent the observed data points and the green line is the calculated pattern. The cyan curve is the normalized error plot.

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 78| Part 1| January 2022| Pages 36-55

https://doi.org/10.1107/S2053229621013164

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