Journal of the Korean Magnetic Resonance Society (한국자기공명학회논문지)
- Volume 11 Issue 1
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- Pages.1-9
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- 2007
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- 1226-6531(pISSN)
An NMR Study of Unequal Site Exchange of 9-Methyl Group in Triptycene by Spin-Lattice Relaxation and 2D-EXSY Experiments
- Cho, Jang-Geun (Department of Chemistry, Chung-Ang University) ;
- Ahn, Sang-Doo (Department of Chemistry, Chung-Ang University)
- Published : 2007.06.20
Abstract
An unequal site exchanging system induced by restricted rotation of 9-methyl group in 1,8-dichloro-9-triptycene has been studied by spin-lattice relaxation and 2D-EXSY experiments. The exchange rate obtained from relaxation studies is very well coincident to the result of line shape analysis, and the difference of the relaxation times (