Showing papers by "Ffrancon Williams published in 1997"
TL;DR: In this article, two consecutive phototransformations of the radical cation of cyclooctatetraene (COT·+) have been described, which were first noted by Shida and Iwata in 1972 from changes in the optical spectra.
Abstract: This contribution describes the elucidation of two consecutive phototransformations of the radical cation of cyclooctatetraene (COT·+) which were first noted by Shida and Iwata in 1972 from changes in the optical spectra. Here we highlight some particular features of the electronic and molecular structure of the involved species. In addition to aspects which were already discussed in our original publications on the subject (cf. [4–7]), we focus on the question of localized versus delocalized structures for the primary photoproduct of COT·+, i.e. the radical cation of bicyclo[3.3.0]octa-2,6-diene-4,8-diyl (BOD·+). Different factors which favor one or the other structure are identified and quantified.
4 citations