An NMR study of the rates of single-molecule exchange in a cylindrical host capsule.
Publication
, Journal Article
Craig, SL; Lin, S; Chen, J; Rebek, J
Published in: Journal of the American Chemical Society
July 2002
Self-assembled cylindrical capsule 1 is reversibly formed from dimerization of two tetraimide resorcinarenes. Studies of guest exchange involving host capsule 1 reveal a mechanistic continuum for exchange that depends on the structure of the guest. Kinetic and dynamic NMR measurements demonstrate the direct displacement of one guest by another. Surprisingly, in the case of benzene exchange in the pairwise encapsulation of benzene and p-xylene, the incoming benzene occupies the same half of the capsule as the outgoing benzene. As the size of the guests increases, solvent-bridged intermediates determine the rates; empty volumes on the molecular scale need not be invoked.
Duke Scholars
Published In
Journal of the American Chemical Society
DOI
EISSN
1520-5126
ISSN
0002-7863
Publication Date
July 2002
Volume
124
Issue
30
Start / End Page
8780 / 8781
Related Subject Headings
- Xylenes
- Polymers
- Magnetic Resonance Spectroscopy
- Macromolecular Substances
- Kinetics
- General Chemistry
- Benzene
- 40 Engineering
- 34 Chemical sciences
- 03 Chemical Sciences
Citation
APA
Chicago
ICMJE
MLA
NLM
Craig, S. L., Lin, S., Chen, J., & Rebek, J. (2002). An NMR study of the rates of single-molecule exchange in a cylindrical host capsule. Journal of the American Chemical Society, 124(30), 8780–8781. https://doi.org/10.1021/ja025672z
Craig, Stephen L., Shirley Lin, Jian Chen, and Julius Rebek. “An NMR study of the rates of single-molecule exchange in a cylindrical host capsule.” Journal of the American Chemical Society 124, no. 30 (July 2002): 8780–81. https://doi.org/10.1021/ja025672z.
Craig SL, Lin S, Chen J, Rebek J. An NMR study of the rates of single-molecule exchange in a cylindrical host capsule. Journal of the American Chemical Society. 2002 Jul;124(30):8780–1.
Craig, Stephen L., et al. “An NMR study of the rates of single-molecule exchange in a cylindrical host capsule.” Journal of the American Chemical Society, vol. 124, no. 30, July 2002, pp. 8780–81. Epmc, doi:10.1021/ja025672z.
Craig SL, Lin S, Chen J, Rebek J. An NMR study of the rates of single-molecule exchange in a cylindrical host capsule. Journal of the American Chemical Society. 2002 Jul;124(30):8780–8781.
Published In
Journal of the American Chemical Society
DOI
EISSN
1520-5126
ISSN
0002-7863
Publication Date
July 2002
Volume
124
Issue
30
Start / End Page
8780 / 8781
Related Subject Headings
- Xylenes
- Polymers
- Magnetic Resonance Spectroscopy
- Macromolecular Substances
- Kinetics
- General Chemistry
- Benzene
- 40 Engineering
- 34 Chemical sciences
- 03 Chemical Sciences