title: 3-(7,8,13,14-Tetra-hydrodi-benzo-[a,i]phen-an-thridin-5-yl)benzene-1,2-diol.
abstract: In the title compound, C(27)H(21)NO(2), the half-chair conformation of the alicyclic rings gives rise to a slightly folded structure of the central tricyclic tetra-hydrophenanthridine unit. Tandem intra-molecular O-H⋯N and O-H⋯O hydrogen bonds give rise to adjacent S(6) and S(5) rings, respectively, which dictate the conformation of the 5-aryl substituent. In the crystal structure, an inter-molecular C-H⋯O contact generates chains parallel to [101]. Short O-H⋯π and C-H⋯π contacts are also observed.
authors: N S
authors: NS
authors: Karthikeyan
authors: G
authors: G
authors: Ramachandran
authors: K
authors: K
authors: Sathiyanarayanan
authors: P
authors: P
authors: Raghavaiah
authors: R S
authors: RS
authors: Rathore
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677
references: Acta Crystallogr D Biol Crystallogr. 2009 Feb;65(Pt 2):148-55
references: 19171970