Synthesis of iodine-capped aniline trimers and analysis of their electronic spectrum

Abstract

Iodine-capped emeraldine trimers are synthesized by a modified Sandmeyer reaction. The electronic spectra of the trimers are captured by UV–Vis spectroscopy. The absorption bands are compared to the results of DFT calculations, and the electronic states responsible for those bands assigned. Additional thermodynamic parameters are calculated for the iodine-capped trimers, and compared to those for the traditional amino-capped trimers.