title: 4H-Cyclo-penta-[def]phenanthren-4-one.
abstract: In the title compound, C(15)H(8)O, the asymmetric unit contains four independent mol-ecules and crystallizes with aromatic π-π stacking inter-actions[centroid-centroid distances = 3.5326 (18) Å].
authors.forename: Wen-Sheng
authors.initials: WS
authors.lastname: Jiang
authors.forename: Di
authors.initials: D
authors.lastname: Sun
authors.forename: Su-Yuan
authors.initials: SY
authors.lastname: Xie
authors.forename: Rong-Bin
authors.initials: RB
authors.lastname: Huang
authors.forename: Lan-Sun
authors.initials: LS
authors.lastname: Zheng