title: N-(3-Methyl-phen-yl)quinoxalin-2-amine monohydrate.
abstract: The quinoxaline system in the title hydrate, C(15)H(13)N(3)·H(2)O, is roughly planar, the r.m.s. deviation for the 18 non-H atoms being 0.188 Å; this conformation features a short intra-molecular C-H⋯N(pyrazine) inter-action. In the crystal, the amine H atom forms an N-H⋯O hydrogen bond to the water mol-ecule, which in turn forms two O-H⋯N hydrogen bonds to the pyrazine N atoms of different organic mol-ecules. These inter-actions lead to supra-molecular arrays in the bc plane that are two mol-ecules thick; additional π-π inter-actions stabilize the layers [ring centroid-centroid distance = 3.5923 (7) Å]. The layers stack along the a-axis direction via C-H⋯π contacts.
authors: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors: Azila
authors: A
authors: Idris
authors: Zanariah
authors: Z
authors: Abdullah
authors: Azahar
authors: A
authors: Ariffin
authors: Zainal A
authors: ZA
authors: Fairuz
authors: Seik Weng
authors: SW
authors: Ng
authors: Edward R T
authors: ER
authors: Tiekink
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677
references: Acta Crystallogr Sect E Struct Rep Online. 2010 Jul 31;66(Pt 8):o2186
references: 21588463