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dl-Methio­nine dl-methio­ninium picrate

✍ Scribed by Anitha, K. ;Athimoolam, S. ;Rajaram, R. K.

Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
363 KB
Volume
62
Category
Article
ISSN
1600-5368

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✦ Synopsis

is composed of two crystallographically independent methionine residues and a picrate anion. The methionine and protonated methioninium residues are bonded through a strong O-HÁ Á ÁO hydrogen bond, and an inversion-related dl1 head-to-tail sequence along the a axis is observed in the zwitterion. The amino groups of two residues connect to the lone oxygen of two inversion-related picrate anions. Hydrophobic layers are observed in the y = 0 plane.

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