Insights into the correlation between the molecular conformational change and AIE activity of 2,5-bis(dimesitylboryl)-3,4-diphenylsiloles

Abstract

Three novel AIEgens with low-lying LUMO energy levels are developed from p-π conjugated 2,5-bis(dimesitylboryl)-3,4-diphenylsiloles. It is found that intramolecular interactions lower the molecular conformational changes, giving rise to broad ¹H NMR peaks and decreased AIE activity.