title: Crystal structure of l-tryptophan-fumaric acid-water (1/1/1).
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.
authors.affiliation: PG & Research Department of Physics, Arignar Anna Govt. Arts College, Cheyyar 604 407, Tamil Nadu, India.
authors.forename: M Lydia
authors.initials: ML
authors.lastname: Caroline
authors.affiliation: PG & Research Department of Physics, Arignar Anna Govt. Arts College, Cheyyar 604 407, Tamil Nadu, India.
authors.forename: S
authors.initials: S
authors.lastname: Kumaresan
authors.affiliation: Thiru.Vi.Ka. Govt Arts College, Thiruvarur 610 003, Tamilnadu, India.
authors.forename: P G
authors.initials: PG
authors.lastname: Aravindan
authors.affiliation: Department of Physics, C. Abdul Hakeem College, Melvisharam 632 509, Tamil Nadu, India.
authors.forename: M Peer
authors.initials: MP
authors.lastname: Mohamed
authors.affiliation: PG & Research Department of Physics, Arignar Anna Govt. Arts College, Cheyyar 604 407, Tamil Nadu, India.
authors.forename: G
authors.initials: G
authors.lastname: Mani
keywords: crystal structure; fumaric acid; hydrogen bonding; l-tryptophan; three-dimensional structure