Thermally induced reversible solid-state transformation of novel s-indacene 1,3,5,7-tetraone derivatives

Abstract

Two novel s-indacene 1,3,5,7-tetraone derivatives, DTID-Hep₂ and iso-DTID-Hep₂, were synthesized and fully characterized. The controllable solid-state phase transformation of the crystals was studied. The unique thermally induced polymorphic transformations suggest that the two materials are interesting for potential applications not only in organic optoelectronics but also in switchable molecular actuators.