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. 2015 Feb 5:136 Pt B:743-50.
doi: 10.1016/j.saa.2014.09.090. Epub 2014 Sep 30.

L-tryptophan L-tryptophanium chloride

V V Ghazaryan  1 , M Fleck  2 , A M Petrosyan  3
Affiliations

L-tryptophan L-tryptophanium chloride

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

Abstract

L-tryptophan L-tryptophanium chloride is a new salt with (A⋯A(+)) type dimeric cation. It crystallizes in the monoclinic system (space group P2(1), Z=2). The asymmetric unit contains one zwitterionic L-tryptophan molecule, one L-tryptophanium cation and one chloride anion. The dimeric cation is formed by a O-H⋯O hydrogen bond with the O⋯O distance equal to 2.5556(18) Å. The infrared and Raman spectra of the crystal are studied and compared with the spectra of L-tryptophanium chloride.

Keywords: Dimeric cation; Structure; Vibrational spectra; l-Tryptophan l-tryptophanium chloride.

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