title: Crystal structure of (E)-2-amino-4-methyl-sulfanyl-6-oxo-1-{[(thiophen-2-yl)-methyl-idene]-amino}-1,6-di-hydro-pyrimidine-5-carbo-nitrile.
abstract: The title compound, C11H9N5OS2, a 1-thio-phen-2-yl-methyl-ene-amino-pyrimidine derivative, displays an essentially planar C-NH2 group. The conformation across the N=C bond linking the pyrimidine and thienyl groups is E. The pyrimidine and thienyl ring systems subtend an inter-planar angle of 42.72 (5)°. In the crystal, mol-ecules are linked by N-H⋯Nnitrile and N-H⋯O=C hydrogen bonds, forming chains parallel to the b axis.
authors.affiliation: Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt.
authors.forename: Galal H
authors.initials: GH
authors.lastname: Elgemeie
authors.affiliation: Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt.
authors.forename: Ali M
authors.initials: AM
authors.lastname: Salah
authors.affiliation: Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt.
authors.forename: Reham A
authors.initials: RA
authors.lastname: Mohamed
authors.affiliation: Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Postfach 3329, D-38023 Braunschweig, Germany.
authors.forename: Peter G
authors.initials: PG
authors.lastname: Jones
keywords: N—H⋯N and N—H⋯O hydrogen bonds.; crystal structure; pyrimidine; thien­yl