GROUND STATE Pi-ELECTRON TRIPLET MOLECULES OF POTENTIAL USE IN THE SYNTHESIS OF ORGANIC FERROMAGNETS

Article abstract of DOI:10.1016/0040-4020(82)80167-1

2,3,6,7,10,11-Tris(N,N'-diethylethylenediamino)triphenylene (HET) has been synthesized by a route involving hexabromination of triphenylene, reaction with ethylenediamine, hexa-acetylation, and reduction with diborane.Cyclic voltammetry shows that HET can be reversibly oxidized to a mono-cation HET⁺, a dication HET²⁺, a trication HET³⁺, and a tetracation HET⁴⁺.Beyond that the oxidation is irreversible.The dication HET²⁺ is a ground-state triplet species.This fact, and the low oxidation potential required to produce it, make it of interest in testing a proposed mechanism for preparing organic ferromagnetic materials.