title: L-Methioninium picrate.
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.
authors.affiliation: Institute of Applied Problems of Physics, NAS of Armenia, 25 Nersessyan Str., 0014 Yerevan, Armenia.
authors.forename: V V
authors.initials: VV
authors.lastname: Ghazaryan
authors.affiliation: Institute of Solid State Chemistry, Siberian Branch of the Russian Academy of Sciences, Kutateladze 18, Novosibirsk 630128, Russian Federation; REC-008, Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russian Federation.
authors.forename: B A
authors.initials: BA
authors.lastname: Zakharov
authors.affiliation: Institute of Solid State Chemistry, Siberian Branch of the Russian Academy of Sciences, Kutateladze 18, Novosibirsk 630128, Russian Federation; REC-008, Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russian Federation.
authors.forename: E V
authors.initials: EV
authors.lastname: Boldyreva
authors.affiliation: Institute of Applied Problems of Physics, NAS of Armenia, 25 Nersessyan Str., 0014 Yerevan, Armenia. Electronic address: aram.m.petrosyan@gmail.com.
authors.forename: A M
authors.initials: AM
authors.lastname: Petrosyan
mesh_terms: D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008715:Methionine / Q000031:analogs & derivatives* / Q000737:chemistry; D008958:Models, Molecular; D010851:Picrates / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013059:Spectrum Analysis, Raman
chemical_list: C517371:DL-methioninium picrate; D010851:Picrates; D008715:Methionine
keywords: Crystal structure; NLO crystals; Vibrational spectra; l-Methioninium picrate