title: Potassium N-bromo-2-nitro-benzene-sulfonamidate monohydrate.
abstract: In the title compound, K(+)·C(6)H(4)BrN(2)O(4)S(-)·H(2)O, the K(+) ion is hepta-coordinated by two O atoms from two different water mol-ecules, three sulfonyl O atoms from three N-bromo-2-nitro-benzene-sulfonamidate anions and two nitro O atoms from two N-bromo-2-nitro-benzene-sulfonamidate anions. The S-N distance of 1.576 (4) Å is consistent with an S=N double bond. The crystal structure is stabilized by inter-molecular O-H⋯N and O-H⋯Br hydrogen bonds which link the molecules into polymeric layers running parallel to the bc plane.
authors.affiliation: Department of Chemistry, Mangalore University, Mangalagangotri 574 199, Mangalore,  India.
authors.forename: B Thimme
authors.initials: BT
authors.lastname: Gowda
authors.forename: Sabine
authors.initials: S
authors.lastname: Foro
authors.forename: H S
authors.initials: HS
authors.lastname: Spandana