Dithiadiazolyl radicals as building blocks for molecular materials

Abstract

A particular family of stable organic radicals, the 1,2,3,5-dithiadiazolyls (DTDAs), has been the focus of much research due to their potential as building blocks for molecular materials, in particular materials with interesting magnetic or conducting properties [1]. However, DTDAs frequently dimerise in the solid state via an interaction known as pancake bonding (Fig. 1 left) [2], rendering them diamagnetic. Our various efforts to understand and overcome this pancake bonding interaction will be presented.