title: Phen-yl(2,4,5-triphenyl-cyclo-penta-1,4-dien-1-yl)methanone.
abstract: The title compound, C(30)H(22)O, does not form face-to-face π-π inter-actions despite the presence of four phenyl rings within the compound. Instead weak C-H⋯π inter-actions occur between adjacent mol-ecules, with C⋯C contact distances in the range 3.633 (4)-3.974 (4) Å. The ketone O atom also takes part in a weak C-H⋯O inter-action. The three pendant phenyl rings are twisted relative to the central cyclopentadiene ring by 17.82 (17), 29.63 (14) and 61.57 (9)°, while the phenylmethanone is nearly orthogonal, the angle between planes being 87.77 (9)°.
authors.affiliation: School of Chemistry, University of St Andrews, Fife KY16 9ST, Scotland.
authors.forename: David B
authors.initials: DB
authors.lastname: Cordes
authors.forename: Guoxiong
authors.initials: G
authors.lastname: Hua
authors.forename: Alexandra M Z
authors.initials: AM
authors.lastname: Slawin
authors.forename: J Derek
authors.initials: JD
authors.lastname: Woollins