title: N-(2-Amino-1,6-dihydro-5-nitroso-6-oxopyrimidin-4-yl)-L-isoleucine-water (4/1): interplay of molecular and supramolecular structures.
abstract: In the title compound, 2C10H15N5O4-0.5H2O, there are two independent molecules of the pyrimidinylisoleucine in general positions and a water molecule lying on a twofold rotation axis. The bond lengths within the organic moieties demonstrate significant polarization of the electronic structure. Each of the organic molecules participates in 12 intermolecular hydrogen bonds, of O-H...O and N-H...O types, while the water molecule acts as a double donor and as a double acceptor of O-H...O hydrogen bonds. The organic components are linked by the hydrogen bonds into a single three-dimensional framework, reinforced by the water molecules.
authors.affiliation: Department of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen AB24 3UE, Scotland, UK.
authors.forename: J N
authors.initials: JN
authors.lastname: Low
authors.forename: D
authors.initials: D
authors.lastname: Cannon
authors.forename: A
authors.initials: A
authors.lastname: Quesada
authors.forename: A
authors.initials: A
authors.lastname: Marchal
authors.forename: M
authors.initials: M
authors.lastname: Melguizo
authors.forename: M
authors.initials: M
authors.lastname: Nogueras
authors.forename: A
authors.initials: A
authors.lastname: Sánchez
authors.forename: C
authors.initials: C
authors.lastname: Glidewell