Singlet spin order in spin pairs coupled via non-bonded interactions

Fluorine spin pairs that are constrained in spatial proximity show large scalar spin-spin couplings, despite the atoms being separated by several bonds. This is due to a non-bonded atomic interaction related to partial overlapping of fluorine p-orbitals. In this paper we exploit this phenomenon to c...

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Main Authors: Giuseppe Pileio, Dolnapa Yamano, Craig D. Eccles, Graham J. Tizzard, Sam Thompson
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Chemistry
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Online Access:https://www.frontiersin.org/articles/10.3389/fchem.2024.1511720/full
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author Giuseppe Pileio
Dolnapa Yamano
Craig D. Eccles
Graham J. Tizzard
Sam Thompson
author_facet Giuseppe Pileio
Dolnapa Yamano
Craig D. Eccles
Graham J. Tizzard
Sam Thompson
author_sort Giuseppe Pileio
collection DOAJ
description Fluorine spin pairs that are constrained in spatial proximity show large scalar spin-spin couplings, despite the atoms being separated by several bonds. This is due to a non-bonded atomic interaction related to partial overlapping of fluorine p-orbitals. In this paper we exploit this phenomenon to create long-lived singlet spin order on the fluorine spin pair. This form of order, which, in this example molecule, is more than an order of magnitude longer than longitudinal order, has the potential to be useful in magnetic resonance imaging and molecular tracing experiments, because of the lack of endogenous fluorine in the human body and the high sensitivity achievable in 19F NMR.
format Article
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institution Kabale University
issn 2296-2646
language English
publishDate 2025-01-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Chemistry
spelling doaj-art-9e34f87ba76b41f597e314097a272f522025-01-30T06:22:49ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462025-01-011210.3389/fchem.2024.15117201511720Singlet spin order in spin pairs coupled via non-bonded interactionsGiuseppe Pileio0Dolnapa Yamano1Craig D. Eccles2Graham J. Tizzard3Sam Thompson4School of Chemistry, University of Southampton, Southampton, United KingdomSchool of Chemistry, University of Southampton, Southampton, United KingdomMagritek GmbH, Aachen, GermanyUK National Crystallography Service, School of Chemistry, University of Southampton, Southampton, United KingdomSchool of Chemistry, University of Southampton, Southampton, United KingdomFluorine spin pairs that are constrained in spatial proximity show large scalar spin-spin couplings, despite the atoms being separated by several bonds. This is due to a non-bonded atomic interaction related to partial overlapping of fluorine p-orbitals. In this paper we exploit this phenomenon to create long-lived singlet spin order on the fluorine spin pair. This form of order, which, in this example molecule, is more than an order of magnitude longer than longitudinal order, has the potential to be useful in magnetic resonance imaging and molecular tracing experiments, because of the lack of endogenous fluorine in the human body and the high sensitivity achievable in 19F NMR.https://www.frontiersin.org/articles/10.3389/fchem.2024.1511720/fulllong-lived spin statesnuclear singlet spin orderthrough-space scalar couplingNMRfluorine NMR
spellingShingle Giuseppe Pileio
Dolnapa Yamano
Craig D. Eccles
Graham J. Tizzard
Sam Thompson
Singlet spin order in spin pairs coupled via non-bonded interactions
Frontiers in Chemistry
long-lived spin states
nuclear singlet spin order
through-space scalar coupling
NMR
fluorine NMR
title Singlet spin order in spin pairs coupled via non-bonded interactions
title_full Singlet spin order in spin pairs coupled via non-bonded interactions
title_fullStr Singlet spin order in spin pairs coupled via non-bonded interactions
title_full_unstemmed Singlet spin order in spin pairs coupled via non-bonded interactions
title_short Singlet spin order in spin pairs coupled via non-bonded interactions
title_sort singlet spin order in spin pairs coupled via non bonded interactions
topic long-lived spin states
nuclear singlet spin order
through-space scalar coupling
NMR
fluorine NMR
url https://www.frontiersin.org/articles/10.3389/fchem.2024.1511720/full
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AT grahamjtizzard singletspinorderinspinpairscoupledvianonbondedinteractions
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