Synthesis and photochromic properties of thiolated N-salicylidene-anilines on silver nanoparticles

• Self-assembly of thiolated Schiff base on AgNPs.
• Salicylidene-anilines joined with surface plasmon resonance absorption of AgNPs.
• Bathochromic shift in the surface plasmon resonance absorption (SPRA) of AgNPs.

Here, we synthesized the salicylidene-aniline (anil) photochromes with thiol group (thiolated Schiff base) to modify silver nanoparticles (AgNPs) surface and their photochromic properties were described. A photochromic response related to the light induced tautomerization of the anils functionality along with bathochromic shift in the absorption band is observed in AgNPs surfaces. We have also examined that enol→keto photoisomerization rate by UV light for functionalized AgNPs are clearly faster than free anils.

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