Used as a coupling agent in hybrid organic-inorganic materials, particularly in sol-gel processes where it enhances compatibility between organic polymers and inorganic networks. Its bipyridine core allows coordination to metal ions, making it valuable in the development of luminescent sensors and catalytic systems. The triisopropoxysilyl groups provide hydrolytic stability and controlled reactivity, enabling uniform incorporation into silica-based matrices for optical coatings and functional thin films.