@article{276e73e512af46d38e28486d19102eac,
title = "Controlled Diffusion of Photoswitchable Receptors by Binding Anti-electrostatic Hydrogen-Bonded Phosphate Oligomers",
abstract = "Dihydrogen phosphate anions are found to spontaneously associate into anti-electrostatic oligomers via hydrogen bonding interactions at millimolar concentrations in DMSO. Diffusion NMR measurements supported formation of these oligomers, which can be bound by photoswitchable anion receptors to form large bridged assemblies of approximately three times the volume of the unbound receptor. Photoisomerization of the oligomer-bound receptor causes a decrease in diffusion coefficient of up to 16%, corresponding to a 70% increase in effective volume. This new approach to external control of diffusion opens prospects in controlling molecular transport using light. ",
author = "MacDonald, {Thomas S.C.} and Feringa, {Ben L.} and Price, {William S.} and Wezenberg, {Sander J.} and Beves, {Jonathon E.}",
note = "Funding Information: We thank Prof. Tim Schmidt, Prof. Palli Thordarson, and Prof. Amar Flood for fruitful discussions. The Australian Research Council (JEB, FT170100094), the Australian Government (TSCM, Australian Postgraduate Award), the Ministry of Education, Culture and Science (Gravitation Program 024.001.035), and the European Research Council (Advanced Grant no. 694345 to B.L.F. and Starting Grant no. 802830 to S.J.W.) are acknowledged for funding. We acknowledge the Mark Wainwright Analytical Centre at UNSW Sydney for access to the NMR facility. Publisher Copyright: {\textcopyright} 2020 American Chemical Society.",
year = "2020",
month = nov,
day = "25",
doi = "10.1021/jacs.0c09072",
language = "English",
volume = "142",
pages = "20014--20020",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "AMER CHEMICAL SOC",
number = "47",
}