Abstract
The barrier to internal rotation about the C(2)-C(3) bond in pentadienyl radicals was measured by line-shape analysis of the e.s.r. spectrum in the temperature range 320-420 K. The energy difference between the trans- and cis-conformers of pent-2-en-4-ynyl radicals was obtained from the temperature variation of their equilibrium concentration ratio and the barrier to interconversion was determined by e.s.r. line-shape analysis in the range 375-450 K. The rotational barriers and the corresponding stabilisation energies were in good agreement with previous estimates.
| Original language | English |
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| Pages (from-to) | 1073-1076 |
| Number of pages | 4 |
| Journal | Journal of the Chemical Society, Perkin Transactions 2 |
| Issue number | 7 |
| Publication status | Published - 1 Dec 1985 |