RELATIVE ELECTRON AFFINITIES OF SUBSTITUTED BENZOPHENONES, NITROBENZENES, AND QUINONINES

Article abstract of DOI:10.1021/ja00294a014

The relative electron affinities of 53 molecules have been determined by measuring equilibrium constants for gas-phase electron-transfer reactions of the general type A^-. + B = B^-. + A.A pulsed ion resonance (ICR) spectrometer was utilized to generate, store , and detect molecular anion radicals at pressures below 1x1E5 torr.The ions were generated by electron capture and stored for several hundred milliseconds in a one-region ICR analyzer cell.A scale relative electron affinities has been constructed by using the mode of multiple overlaps.Substituent effects on the electron affinities of various nitrobenzenes, benzophenones, and quinones are discussed.