Synthesis and photochromic properties of a novel thiol-terminated 1,3-diazabicyclo[3.1.0]hex-3-ene on silver nanoparticles

Inorganic nanoparticles functionalized with organic photochromes have been used for a much wider variety of applications. In this work, we have designed and synthesized a novel photochromic 1,3-diazabicyclo[3.1.0]hex-3-ene with a thiol-terminal group to form a self-assembled monolayer on the silver nanoparticles (AgNPs). The prepared photochromic material was characterized using X-ray diffraction, scanning electron microscopy, UV–Vis, NMR and IR methods. Analysis of the results showed that there is a chemical interaction between the AgNPs and terminal-thiol group of the photochromic. The photochromic structure behavior relationship (PSBR) of photochromic ligand and photochromic/AgNPs assemblies has been analyzed.