Spectral indications of interaction of functionalized photochromic compounds with Ag and Au nanoparticles

A comparative investigation of the photochromism of photochromic spiropyrans, spirooxazines, and diarylethenes in solutions and in solid-phase films in the absence and in the presence of silver and gold nanoparticles was undertaken by a kinetic spectral method. On the basis of the experimental data it was concluded that hybrid photochromic nanoparticles of the core–shell type can be obtained as a result of chemical reaction of functionalized molecules with the nanoparticles of noble metals.