The molecular structure of free allyl radical was determined from high-temperature electron diffraction augmented with mass spectrometry. The free radicals, with 75% relative abundance, were produced by vacuum pyrolysis of 1,5-hexadiene at 960 °C in the diffraction experiment. The data are consistent with a planar symmetric geometry, C-C bond length (rg) 1.428 ± 0.013 Å, and C-C-C bond angle 124.6 ± 3.4°.
ASJC Scopus subject areas
- Colloid and Surface Chemistry