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. 2015 May 5:142:344-9.
doi: 10.1016/j.saa.2015.02.036. Epub 2015 Feb 14.

L-Methioninium picrate

V V Ghazaryan  1 , B A Zakharov  2 , E V Boldyreva  2 , A M Petrosyan  3
Affiliations

L-Methioninium picrate

V V Ghazaryan et al. Spectrochim Acta A Mol Biomol Spectrosc. .

Abstract

Single crystals of l-methioninium picrate were obtained by evaporation of aqueous solution containing equimolar quantities of each component. l-Methioninium picrate crystallizes in the monoclinic system (space group P21, Z=2). The asymmetric unit contains one l-methioninium cation and one picrate anion. The carboxyl group of the cation forms an O-H⋯O hydrogen bond with the phenoxy oxygen atom and has an O⋯O distance of 2.669(3)Å. The protonated amino group of the l-methioninium cation forms N-H⋯O hydrogen bonds with the phenoxy oxygen atom of the picrate anion and the carbonyl oxygen atom of the symmetry related cation. The infrared and Raman spectra are recorded and discussed.

Keywords: Crystal structure; NLO crystals; Vibrational spectra; l-Methioninium picrate.

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