title: 8-(Biphenyl-2-yl)-7,9-diphenyl-8H-cyclo-penta-[a]acenaphthylen-8-ol.
abstract: In the title compound, C(39)H(26)O, the cyclo-penta-[a]acenaphthyl-ene skeleton displays the expected distortions, with formal sp(2) bond angles as high as C-C-C = 142.50 (10)°. The OH group forms inter-molecular hydrogen bonds via x-axis translation to the centroid (Cg) of the pendant phenyl ring of the biphenyl system, with H⋯Cg = 2.41 Å and O-H⋯Cg = 153°.
authors.forename: Peter G
authors.initials: PG
authors.lastname: Jones
authors.forename: Marc
authors.initials: M
authors.lastname: Debeaux
authors.forename: Henning
authors.initials: H
authors.lastname: Hopf
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Kowalsky
authors.forename: Hans-Hermann
authors.initials: HH
authors.lastname: Johannes