title: (E)-2,2'-[3-(4-Fluoro-phen-yl)prop-2-ene-1,1-di-yl]bis-(3-hy-droxy-5,5-dimethyl-cyclo-hex-2-en-1-one).
abstract: In the title compound, C25H29FO4, each cyclo-hexenone ring has an envelope conformation with the dimethyl-substituted atom as the flap. The hy-droxy and carbonyl groups form two intra-molecular O-H⋯O hydrogen bonds, as is typical for xanthene derivatives. In the crystal, very weak C-H⋯O hydrogen bonds link mol-ecules into dimers.
authors.affiliation: Advanced Analysis Center, Korea Institute of Science & Technology, Hwarangro 14-gil, Seongbuk-gu, Seoul 136-791, Republic of Korea.
authors.forename: Joo Hwan
authors.initials: JH
authors.lastname: Cha
authors.forename: Sun-Joon
authors.initials: SJ
authors.lastname: Min
authors.forename: Yong Seo
authors.initials: YS
authors.lastname: Cho
authors.forename: Jae Kyun
authors.initials: JK
authors.lastname: Lee
authors.forename: Junghwan
authors.initials: J
authors.lastname: Park