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9-Methyl­ene-10,10-bis­(phenyl­ethyn­yl)fluorene

✍ Scribed by Jones, Peter G. ;Bubenitschek, Peter ;Hopf, Henning ;Berger, Harald


Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
236 KB
Volume
61
Category
Article
ISSN
1600-5368

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✦ Synopsis


The molecule of (3) in the crystal structure. Displacement ellipsoids are shown at the 50% probability level. H atom radii are arbitrary.


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3,3,6,6-Tetra­methyl-9-(3,4-methyl­ene­d
✍ Li, Yuling ;Wang, Xiangshan ;Shi, Daqing ;Du, Baixiang ;Tu, Shujiang 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 159 KB

The crystal structure of the title compound, C 24 H 27 NO 4 , reveals that there are two roughly identical molecules in the asymmetric unit. In both acridine moieties, the central pyridine rings are slightly distorted and adopt a boat conformation, whereas the two outer six-membered rings display ha