title: Crystal structure of 2-amino-4-methyl-pyridin-1-ium (2R,3R)-3-carb-oxy-2,3-di-hydroxy-propano-ate monohydrate.
abstract: The title mol-ecular salt, C6H9N2 (+)·C4H5O6 (-)·H2O, crystallized with two 2-amino-4-methyl-pyridin-1-ium cations, two l-(+)-tartaric acid monoanions [systematic name: (2R,3R)-3-carb-oxy-2,3-di-hydroxy-propano-ate] and two water mol-ecules in the asymmetric unit. In the crystal, the cations, anions and water mol-ecules are linked via a number of O-H⋯O and N-H⋯O hydrogen bonds, and a C-H⋯O hydrogen bond, forming a three-dimensional structure.
authors.affiliation: PG and Research Department of Physics, Queen Mary's College, Chennai-4, Tamilnadu, India.
authors.forename: J V
authors.initials: JV
authors.lastname: Jovita
authors.affiliation: PG and Research Department of Physics, Queen Mary's College, Chennai-4, Tamilnadu, India.
authors.forename: S
authors.initials: S
authors.lastname: Sathya
authors.affiliation: PG and Research Department of Physics, Queen Mary's College, Chennai-4, Tamilnadu, India.
authors.forename: G
authors.initials: G
authors.lastname: Usha
authors.affiliation: PG and Research Department of Physics, Queen Mary's College, Chennai-4, Tamilnadu, India.
authors.forename: R
authors.initials: R
authors.lastname: Vasanthi
authors.affiliation: Department of Physics, Loyola College, Chennai-34, Tamilnadu, India.
authors.forename: A
authors.initials: A
authors.lastname: Ramanand
keywords: 2-amino-4-methyl­pyridin-1-ium; crystal structure; l-(+)-tartaric acid; tartrate