title: Sodium 2-oxo-3-semicarbazono-2,3-dihydro-1H-indole-5-sulfonate dihydrate.
abstract: The title compound, Na+.C9H7N4O5S-.2H2O, presents a Z configuration around the imine C=N bond and an E configuration around the C(O)NH2 group, stabilized by two intramolecular hydrogen bonds. The packing is governed by ionic interactions between the Na+ cation and the surrounding O atoms. The ionic unit, Na+ and 2-oxo-3-semicarbazono-2,3-dihydro-1H-indole-5-sulfonate, forms layers extending in the bc plane. The layers are connected by hydrogen bonds involving the water molecules.
authors.affiliation: Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Parco Area delle Scienze 17/A, 43100 Parma, Italy. giorgio@unipr.it
authors.forename: G
authors.initials: G
authors.lastname: Pelosi
authors.forename: M
authors.initials: M
authors.lastname: Belicchi Ferrari
authors.forename: M C
authors.initials: MC
authors.lastname: Rodríguez-Argüelles
authors.forename: S
authors.initials: S
authors.lastname: Mosquera-Vázquez
authors.forename: J
authors.initials: J
authors.lastname: Sanmartín
mesh_terms: D000838:Anions / Q000737:chemistry; D018360:Crystallography, X-Ray; D007211:Indoles / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D012664:Semicarbazones / Q000737:chemistry*; D012964:Sodium / Q000737:chemistry*
chemical_list: D000838:Anions; D007211:Indoles; D012664:Semicarbazones; C520082:sodium 2-oxo-3-semicarbazono-2,3-dihydro-1H-indole-5-sulfonate dihydrate; D012964:Sodium