| Literature DB >> 16884939 |
Giuseppe Pileio1, Maria Concistrè, Marina Carravetta, Malcolm H Levitt.
Abstract
The existence of long-lived nuclear spin states in four-spin systems is explored by solution-state NMR experiments. Long-lived states are proved to exist in three different natural product molecules, each containing either a AA'BB' or a AA'XX' proton spin system. The measured state lifetimes are between four and eight times the spin-lattice relaxation time constants.Mesh:
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Year: 2006 PMID: 16884939 DOI: 10.1016/j.jmr.2006.06.034
Source DB: PubMed Journal: J Magn Reson ISSN: 1090-7807 Impact factor: 2.229