Active mechanisorption driven by pumping cassettes
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310021, China.; ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China.
- Northwestern University Atomic and Nanoscale Characterization Experimental Center (NUANCE), Northwestern University, Evanston, IL 60208, USA.
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA.
- Department of Physics and Astronomy, University of Maine, Orono, ME 04469, USA.
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.; Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310021, China.; ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China.; School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia.
Pumping macrocycles onto surfaces
Numerous chemical processes, ranging from water purification to catalysis, involve sorption of small molecules onto surfaces. Typically, spontaneous attractive interactions favor the binding event. Fenget al. report a mechanisorption process that requires redox manipulations to pump macrocycles from bulk solution onto axles immobilized on a metal-organic framework. The resulting rotaxanes store energy through nonequilibrium charge concentration in their mechanical bonds. Ultimately, the technique could also prove useful for actively partitioning compounds with particular functionality between surface and bulk environments. —JSY
- Research Organization:
- Univ. of Minnesota, Minneapolis, MN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- SC0012702
- OSTI ID:
- 1980733
- Journal Information:
- Science, Vol. 374, Issue 6572; ISSN 0036-8075
- Publisher:
- AAAS
- Country of Publication:
- United States
- Language:
- English
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