title: 7-Methoxy-2,3-dioxo-1,4-dihydroquinoxalin-6-aminium chloride monohydrate.
abstract: Single crystals of the title compound, C(9)H(10)N(3)O(3)(+).Cl(-).H(2)O, were obtained by recrystallization from hydrochloric acid. The cations stack along the crystallographic a direction. The 2,3-dioxo-1,4-dihydroquinoxaline group shows a significant deviation from planarity [r.m.s. deviation from the best plane = 0.063 (2) A]. Hydrogen bonding links the cations, chloride anions and water molecules to form an extended three-dimensional architecture.
authors.affiliation: Institute of Inorganic and Analytical Chemistry, Goethe University, Max-von-Laue-Strasse 7, D-60438 Frankfurt am Main, Germany.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Brüning
authors.forename: Alexander
authors.initials: A
authors.lastname: Peters
authors.forename: Jan W
authors.initials: JW
authors.lastname: Bats
authors.forename: Martin U
authors.initials: MU
authors.lastname: Schmidt
mesh_terms: D002412:Cations / Q000737:chemistry; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D015394:Molecular Structure; D011810:Quinoxalines / Q000737:chemistry*
chemical_list: C547116:7-methoxy-2,3-dioxo-1,4-dihydroquinoxalin-6-aminium chloride monohydrate; D002412:Cations; D011810:Quinoxalines