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Active mechanisorption driven by pumping cassettes

Journal Article · · Science
 [1];  [1];  [2];  [1];  [1];  [3];  [1];  [1];  [4];  [5];  [6]
  1. Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.
  2. Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310021, China.; ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China.
  3. Northwestern University Atomic and Nanoscale Characterization Experimental Center (NUANCE), Northwestern University, Evanston, IL 60208, USA.
  4. Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA.
  5. Department of Physics and Astronomy, University of Maine, Orono, ME 04469, USA.
  6. 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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