✍ Scribed by Danial D.M. Wayner; Joseph J. Dannenberg; David Griller
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or-aminoalkyl radicals were generated using modulated photolysis and were detected electrochemicalIy; their oxidation potentials were used to estimate bond dissociation energies of radical cations in solution. a-aminoalkyl radicals are potent one-electron reducing agents in solution. Their gas-phase ionization tBu0. + (RCH2)2NCH2R . potentials, IPs, reflect this property. They are some 2-3 eV lower than those for simple carboncentered radicals and rival those of the alkali metals [ 11. While the gas phase IPs are of value, the most relevant data solution oxidation potentials -have never been measured because of the attendant experimental difficulties [2]. Using a new technique [3] we have been able to obtain this information and have used the data to estimate the bond dissociation energies in related radical cations. The radicals were generated by the reactions I. . .
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## Abstract The C — H bond dissociation energies for naphthalene were determined using a negative ion thermochemical cycle involving the gas‐phase acidity (Δ__H__~acid~) and electron affinity (__EA__) for both the α‐ and β‐positions. The gas‐phase acidity of the naphthalene α‐ and β‐positions and t