The reaction of several bridged bicyclobutanes, 1–7, with photoexcited electron acceptors gives rise to strong nuclear spin polarization effects. These results are interpreted in terms of two different types of radical cation intermediates in which spin and charge are localized either in the transannular bicyclobutane bond (A) or in a π Orbital ofthe bridging moiety (B). The chemical nature of the bridging unit determinesthe radical cation structures and influences the rearrangement pathways.
All Science Journal Classification (ASJC) codes
- Colloid and Surface Chemistry