کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
175886 | 458926 | 2015 | 8 صفحه PDF | دانلود رایگان |
• Designed and synthesized photochromic 1,3-diazabicyclo[3.1.0]hex-3-ene.
• Self-assembly of azobenzene-thiol-1,3-diazabicyclo-[3.1.0]hex-3-ene on AgNPs.
• Bathochromic shift in the surface plasmon resonance absorption (SPRA) of AgNPs.
• Photochromic of 1,3-diazabicyclo-[3.1.0]hex-3-ene joined with SPRA of AgNPs.
• Photochromic of 1,3-diaza, SPRA of AgNPs and photoisomerisable azobenzene.
The new azobenzene-thiol terminated photochromic derivatives is designed, synthesized and used to form self-assembled monolayers on silver nanoparticles. The photochromic behavior of 1,3-diazabicyclo-[3.1.0]hex-3-ene joined with surface plasmon resonance absorption band of silver nanoparticles and photoisomerisable azobenzene is presented. The ultraviolet–visible experiments demonstrated that electronic transitions of functionalized silver nanoparticles were shifted as a result of chemical bonding and overlap between absorption bands of photochromic ligands with surface plasmon resonance absorption band of silver nanoparticle. Furthermore, we have also observed that trans→cis and cis→trans photoisomerization rate by ultraviolet light and thermally induced condition for functionalized silver nanoparticles are noticeably faster than free ligands.
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Journal: Dyes and Pigments - Volume 118, July 2015, Pages 110–117