Mixed-valent molecular triple-deckers.

Mixed-valent molecular triple-deckers.
Angew Chem Int Ed Engl. 2018 Jul 09;:
Authors: Schmidt HC, Guo X, Richard PU, Neuburger M, Palivan CG, Wenger OS
Abstract
Two phenothiazine (PTZ) moieties were connected via naphthalene spacers to a central arene to result in stacked PTZ-arene-PTZ structure elements. Benzene and tetramethoxybenzene units served as central arenes mediating electronic communication between the two PTZ units. Based on cyclic voltammetry, UV-Vis-NIR absorption, EPR spectroscopy, and computational studies, the one-electron oxidized forms of the resulting compounds behave as class II organic mixed-valence species in which the unpaired electron is partially delocalized over both PTZ units. The barrier for intramolecular electron transfer depends on the nature of the central arene sandwiched between the two PTZ moieties. These are the first examples of rigid organic mixed-valent triple-decker compounds with possible electron transfer pathways directly across a stacked structure, and they illustrate the potential of oligo-naphthalene building blocks for long-range electron transfer and a future molecular electronics technology.
PMID: 29985557 [PubMed - as supplied by publisher]

Source: Angewandte Chemie - July 9, 2018 Category: Chemistry Authors: Schmidt HC, Guo X, Richard PU, Neuburger M, Palivan CG, Wenger OS Tags: Angew Chem Int Ed Engl Source Type: research