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Optical properties of gold nanoparticles decorated with furan-based diarylethene photochromic molecules

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2017

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Khodko, Alina
Lacaze, Emanuelle
Pluchery, Olivier

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http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1ns4qvpnjrp6b5
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https://doi.org/10.1016/j.jphotochem.2017.04.003
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Journal of Photochemistry and Photobiology A: Chemistry. 2017, 342, pp. 78-84. ISSN 1010-6030. eISSN 1873-2666. Available under: doi: 10.1016/j.jphotochem.2017.04.003

Zusammenfassung

The optical properties of the photochromic 1,2-bis(2-methyl-5-((4-mercaptophenyl)ethynyl)-furan-3-yl)perfluorocyclopentene (YnPhT) covalently attached to gold nanoparticles (AuNP) (d = 17 ± 1 nm) were studied in air at ambient conditions. The reversible ring-opening/closing photochromic reactions of molecules attached on AuNP surface can occur under similar light irradiation conditions as observed for free molecules in ethanolic solution. An unexpected blue shift of the local surface plasmon resonance band (LSPR) of AuNP covered by photochromic molecules was observed after UV light irradiation. A reverse red shift of LSPR was observed when the AuNP are illuminated by visible light. Moreover, increased amplitude of the LSPR was observed for AuNP covered with molecules in the closed-ring state. These observations are discussed in view of molecule – AuNP interactions. These interactions decelerate the kinetics of the ring-closing reaction of YnPhT on AuNP surfaces under UV light irradiation.

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540 Chemie

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ISO 690SNEGIR, Sergii, Alina KHODKO, Dmytro SYSOIEV, Emanuelle LACAZE, Olivier PLUCHERY, Thomas HUHN, 2017. Optical properties of gold nanoparticles decorated with furan-based diarylethene photochromic molecules. In: Journal of Photochemistry and Photobiology A: Chemistry. 2017, 342, pp. 78-84. ISSN 1010-6030. eISSN 1873-2666. Available under: doi: 10.1016/j.jphotochem.2017.04.003
BibTex
@article{Snegir2017Optic-39499,
  year={2017},
  doi={10.1016/j.jphotochem.2017.04.003},
  title={Optical properties of gold nanoparticles decorated with furan-based diarylethene photochromic molecules},
  volume={342},
  issn={1010-6030},
  journal={Journal of Photochemistry and Photobiology A: Chemistry},
  pages={78--84},
  author={Snegir, Sergii and Khodko, Alina and Sysoiev, Dmytro and Lacaze, Emanuelle and Pluchery, Olivier and Huhn, Thomas}
}
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