title: Tris[4-(4-nitrophenyl)-3-aza-3-butenyl]amine: pi-stacked chains of hydrogen-bonded R(2)(2)26 dimers.
abstract: In the title compound {alternative name: N'-(4-nitrobenzylidene)-N,N-bis[2-(4-nitrobenzylideneamino)ethyl]-1,2-ethanediamine}, C27H27N7O6, the three independent NCH2CH2N=CHC6H4NO2 fragments all exhibit different conformations, resulting from the different direction-specific intra- and intermolecular interactions experienced. The molecules are linked by a single C-H...O hydrogen bond into centrosymmetric R(2)(2)(26) dimers, which are linked by pi-pi stacking interactions into [111] chains and, more weakly, into (01-1) sheets.
authors.affiliation: Department of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen AB24 3UE, Scotland. cg@st-andrews.ac.uk
authors.forename: Christopher
authors.initials: C
authors.lastname: Glidewell
authors.forename: John N
authors.initials: JN
authors.lastname: Low
authors.forename: Janet M S
authors.initials: JM
authors.lastname: Skakle
authors.forename: James L
authors.initials: JL
authors.lastname: Wardell