Abstract
Bistability at room temperature is a key for application to information-storage, display, and computing materials. We have reported the crystal structures and magnetic properties of m-phenylene biradicals.
Especially 3'-methylbiphenyl-3,5-diyl bis(t-butyl nitroxide) (m-Mebpbn) showed thermally induced magnetism (diamagnetic-paramagnetic phase transition). Herein we report synthesis and magnetic properties of new halogenated bpbn derivatives to develop room-temperature bistable materials. In this study, we discovered 5 kinds of crystals and measured magnetic properties of these crystals. Accoding to the measurement of magnetic properties we confirmed these compounds having the triplet ground state, and one crystal of them behaved as a monoradical though it was a ground triplet biradical.
