Chopra, D. ; Nagarajan, K. ; Roberts, J. D. ; Guru Row, T. N. (2007) trans-1,2-Difluoro-3,4,5,6,7,8-hexaphenyltricyclo[,5]octa-3,7-diene Acta Crystallographica Section E, 63 . o4557-o4557. ISSN 1600-5368

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In order to probe the possible mechanism of the rearrangement of trans-hexaphenyldifluorotricyclooctadiene (a dimer of fluorotriphenylcyclobutadiene) to pentaphenyldihydrodifluoropentalene via C-F bond migration, a high-temperature study of the title compound, C44H30F2, was performed at 400 (2) K. In the title compound, there are three fused four-membered rings with the resulting eight-membered tricyclooctadiene ring adopting a sofa conformation. The dihedral angles between the central four-membered ring and the two outer rings are 66.03 (2) and 65.39 (2)°. The crystal structure contains centrosymmetric dimers formed by C-H...π interactions.

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Deposited On:13 Jun 2012 10:36
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