Reactivity of radical cations: generation, characterization, and reactivity of 1,3-diene radical cations

摘要

Conjugated diene radical cations have been generated by either photoionization of the parent diene or photosensitized electron transfer using triplet chloranil or 1,4-dicyanonaphthalene/biphenyl in acetonitrile and have been characterized by laser flash photolysis. The radical cations have a moderately strong absorption in the 340-400 nm region with a broader and weaker bond at longer wavelength, in agreement with literature data for the same species in matrices.