NDLI: Light-Driven Rotary Molecular Motors on Gold Nanoparticles

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Light-Driven Rotary Molecular Motors on Gold Nanoparticles

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Meetsma, Auke Pollard, Michael M. Van Den Brom, Coenraad R. Koumura, Nagatoshi Vicario, Javier Feringa, Ben L. Ter Wiel, Matthijs K. J. Van Delden, Richard A.
Description	Author Affiliation: Pollard MM ( Department of Organic and Molecular Inorganic Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.)
Abstract	We report the synthesis of unidirectional light-driven rotary molecular motors based on chiral overcrowded alkenes and their immobilisation on the surface of gold nanoparticles through two anchors. Using a combination of $^{1}H$ and $^{13}C NMR,$ UV/Vis and CD spectroscopy, we show that these motors preserve their photochemical and thermal behaviour after they have been attached to gold nanoparticles. Furthermore, we describe the synthesis of $^{2}H-$ and $^{13}C-labelled$ derivatives that were used to verify the unidirectionality of the rotary cycle of these motors both in solution and while grafted to gold nanoparticles. Taken together, these data support the conclusion that these motors maintain their unidirectional rotary cycle when grafted to the surface of small (ca. 2 nm) gold nanoparticles. Thus, continuous irradiation of the system under appropriate conditions leads to unidirectional rotation of the upper half of the molecules relative to the entire nanoparticle.
ISSN	09476539
e-ISSN	15213765
Journal	Chemistry - A European Journal
Issue Number	36
Volume Number	14
Language	English
Publisher	Wiley-VCH;ChemPubSoc Europe
Publisher Date	2008-01-01
Publisher Place	Germany
Access Restriction	Open
Subject Keyword	Chemistry
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Catalysis

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