title: 2-Hydroxy-3-(4,5,6,7-tetrahydro-1H-imidazo[4,5-c]pyridin-5-ium-4-yl)benzoate monohydrate.
abstract: The title molecule, C(13)H(13)N(3)O(3).H(2)O, is in the form of a monohydrated zwitterion. The tetrahydropyridinium ring adopts an envelope conformation and is nearly coplanar with the plane of the imidazoline ring. The water solvate molecule plays an important role as a bridge between zwitterions, forming molecular chains running along the c direction, which are interconnected by N-H.O hydrogen bonds into molecular ribbons. The crystal packing is further stabilized by another N-H.O and one O-H.N hydrogen bond, which interconnect the molecular ribbons.
authors.affiliation: X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.
authors.forename: Anwar
authors.initials: A
authors.lastname: Usman
authors.forename: Chandini R
authors.initials: CR
authors.lastname: Nayar
authors.forename: P A
authors.initials: PA
authors.lastname: Unnikrishnan
authors.forename: P B
authors.initials: PB
authors.lastname: Sreeja
authors.forename: M R
authors.initials: MR
authors.lastname: Prathapachandra Kurup
authors.forename: Hoong Kun
authors.initials: HK
authors.lastname: Fun