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. 2015 Aug 15;71(Pt 9):o661-2.
doi: 10.1107/S205698901501484X. eCollection 2015 Sep 1.

Crystal structure of l-tryptophan-fumaric acid-water (1/1/1)

M Lydia Caroline  1 , S Kumaresan  1 , P G Aravindan  2 , M Peer Mohamed  3 , G Mani  1
Affiliations

Crystal structure of l-tryptophan-fumaric acid-water (1/1/1)

M Lydia Caroline et al. Acta Crystallogr E Crystallogr Commun. .

Abstract

In the title compound, C11H12N2O2·C4H4O4·H2O, the l-tryp-to-phan mol-ecule crystallized as a zwitterion, together with a neutral fumaric acid mol-ecule and a water solvent mol-ecule. In the crystal, the three components are linked by a series of N-H⋯O, O-H⋯O and C-H⋯O hydrogen bonds, forming slabs lying parallel to (001). The slabs are connected by O-H⋯O hydrogen bonds, involving inversion-related fumaric acid groups, leading to the formation of a three-dimensional structure.

Keywords: crystal structure; fumaric acid; hydrogen bonding; l-tryptophan; three-dimensional structure.

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Figures

Fig. 1.
Fig. 1.
The molecular structure of the title compound, with atom labelling. Displacement ellipsoids are drawn at the 40% probability level.
Fig. 2.
Fig. 2.
The crystal packing of the title compound, viewed along the a axis. The hydrogen bonds are shown as dashed lines (see Table 1 for details).
Fig. 3.
Fig. 3.
The crystal packing of the title compound, viewed along the b axis. The hydrogen bonds are shown as dashed lines (see Table 1 for details).
See this image and copyright information in PMC

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