Cha, J.H. Lee, J.K. Min, S.-J. Cho, Y.S. Park, J. 2024-01-20T12:01:29Z 2024-01-20T12:01:29Z 2021-09-02 2013-08 1600-5368 https://pubs.kist.re.kr/handle/201004/127848 The title compound, C25H29ClO4, adopts a trans conformation about the C=C double bond and the dimethylcyclohexenone rings both show an envelope conformation with the dimethyl-substituted C atom as the flap. In the molecule, the hydroxy and carbonyl groups form two intramolecular O - H？O hydrogen bonds typical for xanthene derivatives. In the crystal, weak C - H？O hydrogen bonds link the molecules into chains running parallel to the a-axis direction. English (E)-2,2′-[3-(4-Chlorophenyl)prop-2-ene-1,1-diyl]bis(3-hydroxy-5, 5-dimethylcyclohex-2-en-1-one) Article 10.1107/S1600536813020357 1 Acta Crystallographica Section E: Structure Reports Online, v.69, no.8 Acta Crystallographica Section E: Structure Reports Online 69 8 scopus 2-s2.0-84881472650 Article data-to-parameter ratio = 18.4 meanω(C - C) = 0.003 A ° Rfactor = 0.045 single-crystal X-ray study T = 296 K wRfactor = 0.135