Singlet spin order in spin pairs coupled via non-bonded interactions
Giuseppe Pileio, Dolnapa Yamano, Craig D. Eccles, Graham J. Tizzard, Sam Thompson · 2025
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Description
Giuseppe Pileio and co-authors park nuclear spins in a protected state using atoms that never touch in a 2024 paper. Two fluorine atoms held near each other in a molecule, though separated by several bonds, couple strongly because their electron clouds overlap through space. That odd coupling becomes a tool in the team's hands.
They use it to create singlet spin order on the fluorine pair, a quiet arrangement that ignores much of the magnetic noise around it. In their test molecule the singlet order outlived ordinary longitudinal order by more than tenfold. Long-lived spin states are coveted for magnetic resonance imaging and for tracing molecules through the body. Fluorine is an ideal tracer atom: the human body contains essentially none, so any fluorine signal stands out cleanly, and fluorine NMR is highly sensitive. The work turns a structural quirk into a storage locker for spin information.
Catalog record
| CREATOR | Giuseppe Pileio, Dolnapa Yamano, Craig D. Eccles, Graham J. Tizzard, Sam Thompson |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 29 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |