Used as an electrochromic material in smart windows and displays due to its reversible color change upon application of an electric field. Exhibits stable redox behavior in electrochemical cells, making it suitable for use in molecular electronics and charge-storage systems. Also employed in supramolecular chemistry as a redox-active building block for constructing switchable host-guest systems. Its rigid, extended structure supports use in photochemical sensors and artificial photosynthetic models where electron transfer processes are essential.