Electrochemistry and Near Infrared Spectra of Anion Radicals Containing SeveralImide or Quinone Groups

摘要

A series of aromatic compounds possessing imide and quinone electron-acceptorgroups were prepared using Diels-Alder reactions. These linear, aromatic compounds were studied using cyclic voltammetry and reduced electrochemically to produce solutions of the corresponding anion radicals. The anion radical near-infrared spectra were recorded and showed bands over the range 700-1700 nm. There have been few reports on the electronic absorption spectra of anion radicals, and these have been limited to rather simple compounds. Even so, the results are interesting because the ions absorb at long wavelengths in the visible or near-infrared (NIR). NIR absorbers are of growing interest because of applications in communications and optical storage, and it is appropriate to study some more complex anion radicals in order to understand their optical properties.