Overcrowded alkene-based molecular motors: from single molecule to multimotor systems

Arjen Cnossen

Research output: ThesisThesis fully internal (DIV)

1321 Downloads (Pure)

Abstract

The research is focused on increasing the understanding of the mechanism of rotation of light-driven second generation molecular motors with the ultimate goal of applying them in nanotechnology. In the first experimental chapter the thermal step of the rotation is studied using quantummechanical calculations and spectroscopy. This revealed the conformational changes during the thermal step. Next, the photochemical step was studied at the sub-picosecond timescale. Further studies are needed to fully clarify the motions during the photochemical step. In the second part of the thesis ways in which the rotation of molecular motors might be applied in nanotechnology are investigated. First, a way to power these motors using visible light rather than UV light was developed. This could be a first step towards their application in biological systems. Second, ordered monolayers of molecular motors on graphite could be made. This order could prove crucial in taking advantage of the motions of a large number of motors, however, rotation of the motors in the monolayers could not be demonstrated. Finally, molecular motors were incorporated in polymers. It was demonstrated that the rotation of the motors is retained while attached to the polymer. Moreover, isomerization of the motor was shown to influence the conformation of the polymer chain.
Original languageEnglish
QualificationDoctor of Philosophy
Supervisors/Advisors
  • Browne, Wesley, Supervisor
  • Feringa, Ben L., Supervisor
Award date1-Mar-2013
Place of PublicationGroningen
Publisher
Print ISBNs9789036760010
Electronic ISBNs9789036760003
Publication statusPublished - 2013

Keywords

  • Proefschriften (vorm)
  • Alkenen
  • Nanotechnologie
  • Stereochemie
  • Fenantreen
  • Clicks
  • Moleculaire $schakelaars
  • Moleculaire motoren
  • Fotochemie
  • supramoleculaire chemie

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