Enhancing the thermally activated delayed fluorescence of <i>nido</i>-carborane-appended triarylboranes by steric modification of the phenylene linker

Abstract

The introduction of a methyl group into the 4-position of the phenylene linker of <italic>nido</italic>-carborane–triarylborane D–A dyads, <italic>i.e.</italic>, at the <italic>ortho</italic> position to the <italic>nido</italic>-carborane cage, largely enhances their thermally activated delayed fluorescence.