Cited by 92Photochromic and Fluorescence ChemistryLiquid Crystal Research AdvancementsSupramolecular Chemistry and Complexes

Photoisomerization of Azobenzene Derivatives in Nanostructured Silica

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Sierocki, Paul, Maas, Huub, Dragut, Patrick, Richardt, Gabriele, Vögtle, Fritz, De Cola, Luisa, Brouwer, Fred (A. M.), Zink, Jeffrey I.·2006·The Journal of Physical Chemistry B

Abstract

A series of derivatized azobenzene molecules are synthesized such that one of the phenyl groups can be chemically bonded to mesostructured silica and the other, derivatized with dendrons, is free to undergo large-amplitude light-driven motion. The silica frameworks on which the motion takes place are either 150 nm thick films containing ordered hexagonal arrays of tubes (inner diameter about 2 nm) containing the bonded azobenzenes, or particles (about 500 nm in diameter) containing the same ordered arrays of functionalized tubes. The photoisomerization yields and the rate constants for the thermal cis to trans back-reaction of the azobenzenes in the tubes are measured and compared to those of the molecules in solution. The rate constants decrease with increasing size of the dendrons. Fluorescence spectra of the cis and trans isomers in the pores show that the photoisomerization in the nanostructured materials is selectively driven by specific wavelengths of light and is reversible.

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Crossref · 10.1021/jp0641334

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Authors
Sierocki, P., Maas, H., Dragut, P., Richardt, G., Vögtle, F., De Cola, L., Brouwer, F. (. M. )., & Zink, J. I.
Affiliations
  • University of California, Los Angeles (US)
  • Department of Chemistry and Biochemistry, University of California Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, Van ‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Kekulé-Institut für Organische Chemie und Biochemie der Universtät Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
Venue
The Journal of Physical Chemistry B
Published
2006-11-11
Volume
110
Issue
48
Pages
24390-24398
ISSN
  • 1520-5207 (ISSN-L)
  • 1520-6106
OpenAlex
W2318923993
Cited by
92
References
36
Citations by year
2026: 1 · 2025: 4 · 2024: 1 · 2023: 3 · 2022: 6 · 2021: 3 · 2020: 7 · 2019: 7 · 2018: 8 · 2017: 3 · 2016: 4 · 2015: 4 · 2014: 3 · 2013: 5 · 2012: 6
FWCI
3.71
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • The Journal of Physical Chemistry B (publishedVersion)
  • PubMed (publishedVersion)
  • UvA-DARE (University of Amsterdam) (publishedVersion)
  • Archivio Istituzionale della Ricerca (Universita Degli Studi Di Milano) (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • National Science Foundation (0507929, 0346610, 0315828)
  • European Commission
  • Division of Materials Research
  • Division of Chemistry
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Photochromic and Fluorescence Chemistry
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Liquid Crystal Research Advancements
  • Physical Sciences › Chemistry › Organic Chemistry › Supramolecular Chemistry and Complexes
Keywords
azobenzene, photoisomerization, mesostructured silica, silica nanotubes, dendrons, cis-trans isomerization, thermal back reaction, fluorescence, silica particles, SiO2 thin films

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