| 2. | Andrew M R Hall, Topaz A A Cartlidge, Giuseppe Pileio: A temperature-controlled sample shuttle for field-cycling NMR. In: Journal of Magnetic Resonance, pp. 106778, 2020, ISSN: 1090-7807. (Type: Journal Article | Abstract | Links)@article{HALL2020106778,We present a design for a temperature-controlled sample shuttle for use in NMR measurements at variable magnetic field strength. Accurate temperature control was achieved using a mixture of water-ethylene glycol as a heat transfer fluid, reducing temperature gradients across the sample to <0.05 °C and minimising convection. Using the sample shuttle, we show how the longitudinal (T1) and singlet order (TS) relaxation time constants were measured for two molecules capable of supporting long-lived states, with new record lifetimes observed at low field and above ambient temperatures. |
| 1. | G Pileio: Nuclear Singlet Spin States. In: Lindon, John C; Tranter, George E; Koppenaal, David W (Ed.): Encyclopedia of Spectroscopy and Spectrometry (Third Edition), pp. 456 - 462, Academic Press, Oxford, 2017, ISBN: 978-0-12-803224-4. (Type: Book Section | Abstract | Links)@incollection{PILEIO2017456,Isolated pairs of spin-1/2 nuclei can be prepared in a singlet state configuration that is immune to intrapair dipole–dipole relaxation, often the main source for the longitudinal magnetization decay constant T1. Because of this property singlet states can hold polarization for much longer than T1. In given circumstances, singlet states may be partially immune to other relaxation mechanisms thus offering spectacularly slow decay times. This article presents the most relevant theory beyond these phenomena, the methodology introduced to prepare these states and the current and potential applications of singlet states. |
Publications
| 2. | : A temperature-controlled sample shuttle for field-cycling NMR. In: Journal of Magnetic Resonance, pp. 106778, 2020, ISSN: 1090-7807. |
| 1. | : Nuclear Singlet Spin States. In: Lindon, John C; Tranter, George E; Koppenaal, David W (Ed.): Encyclopedia of Spectroscopy and Spectrometry (Third Edition), pp. 456 - 462, Academic Press, Oxford, 2017, ISBN: 978-0-12-803224-4. |