title: Potassium l-2-nitrimino-1,3-diazepane-4-carboxyl-ate monohydrate.
abstract: The title compound, K(+)·C(6)H(9)N(4)O(4) (-)·H(2)O, crystallizes with the K atoms located on special positions related by pseudocentres of symmetry. Each K atom is coordinated by six O-atom donors. The N and water H atoms are involved in inter- and intra-molecular N-H⋯O, N-H⋯N and O-H⋯O hydrogen bonding. The data indicate inversion twinning.
authors.affiliation: Molecule Structure Research Center, National Academy of Sciences RA, Azatutyan Avenue 26, 375014 Yerevan, Republic of Armenia.
authors.forename: Harutyun A
authors.initials: HA
authors.lastname: Karapetyan