期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 142, 期 47, 页码 20014-20020出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.0c09072
关键词
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资金
- Australian Research Council [FT170100094]
- Australian Government (TSCM, Australian Postgraduate Award)
- Ministry of Education, Culture and Science (Gravitation Program) [024.001.035]
- European Research Council [694345, 802830]
- European Research Council (ERC) [802830] Funding Source: European Research Council (ERC)
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.
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