Cha, Joo Hwan Kim, Young Hee Min, Sun-Joon Cho, Yong Seo Lee, Jae Kyun 2024-01-20T16:00:52Z 2024-01-20T16:00:52Z 2021-09-05 2011-12 1600-5368 https://pubs.kist.re.kr/handle/201004/129758 In the title compound, C25H29NO6, each of the cyclohexenone rings adopts a half-chair conformation. Each of the pairs of hydroxy and carbonyl O atoms are oriented to allow for the formation of intramolecular O-H center dot center dot center dot O hydrogen bonds, which are typical of xanthene derivatives. The nitro group is rotationally disordered over two orientations in a 0.544 (6):0.456 (6) ratio. In the crystal, weak intermolecualr C-H center dot center dot center dot O hydrogen bonds link molecules into layers parallel to the ab plane. English WILEY-BLACKWELL (E)-2,2 '-[3-(2-Nitrophenyl)prop-2-ene-1,1-diyl]bis(3-hydroxy-5,5-dimethylcycloh ex-2-en-1-one) Article 10.1107/S1600536811043686 1 ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, v.67, pp.O3153 - U908 ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE 67 O3153 U908 scie scopus 000298794900072 2-s2.0-83155185564 Crystallography Crystallography Article data-to-parameter ratio = 13.4 disorder in main residue mean σ(C-C) = 0.007 ？ R factor = 0.064 single-crystal X-ray study T = 298 K wR factor = 0.191