Towards Dynamic Control of Wettability by Using Functionalized Altitudinal Molecular Motors on Solid Surfaces

Gabor London, Kuang-Yen Chen, Gregory T. Carroll, Ben L. Feringa*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

We report the synthesis of altitudinal molecular motors that contain functional groups in their rotor part. In an approach to achieve dynamic control over the properties of solid surfaces, a hydrophobic perfluorobutyl chain and a relatively hydrophilic cyano group were introduced to the rotor part of the motors. Molecular motors were attached to quartz surfa-ces by using interfacial 1,3-dipolar cycloadditions. To test the effect of the functional groups on the rotary motion, photochemical and thermal isomerization studies of the motors were per-formed both in solution and when attached to the surface. We found that the substituents have no significant effect on the thermal and photochemical processes, and the functionalized motors preserved their rotary function both in solution and on a quartz surface. Preliminary results on the influence of the functional groups on surface wettability are also described.

Original languageEnglish
Pages (from-to)10690-10697
Number of pages8
JournalChemistry
Volume19
Issue number32
DOIs
Publication statusPublished - 5-Aug-2013

Keywords

  • molecular devices
  • nanotechnology
  • photochemistry
  • surface chemistry
  • wettability
  • SELF-ASSEMBLED MONOLAYERS
  • CONTROLLED ROTARY MOTION
  • STRUCTURAL MODIFICATION
  • GOLD
  • FILM
  • PHOTOISOMERIZATION
  • AZOBENZENE
  • CHEMISTRY
  • SWITCHES
  • SILICA

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