Gutenberg Open Science: Hyperpolarization of cis-15N2-azobenzene by parahydrogen at ultralow magnetic fields

Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-8085

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DC Field	Value	Language
dc.contributor.author	Sheberstov, Kirill F.	-
dc.contributor.author	Kozinenko, Vitaly P.	-
dc.contributor.author	Kiryutin, Alexey S.	-
dc.contributor.author	Vieth, Hans-Martin	-
dc.contributor.author	Zimmermann, Herbert	-
dc.contributor.author	Ivanov, Konstantin L.	-
dc.contributor.author	Yurkovskaya, Alexandra V.	-
dc.date.accessioned	2022-11-14T09:04:42Z	-
dc.date.available	2022-11-14T09:04:42Z	-
dc.date.issued	2021	-
dc.identifier.uri	https://openscience.ub.uni-mainz.de/handle/20.500.12030/8100	-
dc.description.abstract	The development of nuclear spins hyperpolarization, and the search for molecules that can be efficiently hyperpolarized is an active area in nuclear magnetic resonance. In this work we present a detailed study of SABRE SHEATH (signal amplification by reversible exchange in shield enabled alignment transfer to heteronuclei) experiments on 15N2-azobenzene. In SABRE SHEATH experiments the nuclear spins of the target are hyperpolarized through transfer of spin polarization from parahydrogen at ultralow fields during a reversible chemical process. Azobenzene exists in two isomers, trans and cis. We show that all nuclear spins in cis-azobenzene can be efficiently hyperpolarized by SABRE at suitable magnetic fields. Enhancement factors (relative to 9.4 T) reach up to 3000 for 15N spins and up to 30 for the 1H spins. We compare two approaches to observe either hyperpolarized magnetization of 15N/1H spins, or hyperpolarized singlet order of the 15N spin pair. The results presented here will be useful for further experiments in which hyperpolarized cis-15N2-azobenzene is switched by light to trans-15N2-azobenzene for storing the produced hyperpolarization in the long-lived spin state of the 15N pair of trans-15N2-azobenzene.	en_GB
dc.language.iso	eng	de
dc.rights	CC BY-NC	*
dc.rights.uri	https://creativecommons.org/licenses/by-nc/4.0/	*
dc.subject.ddc	530 Physik	de_DE
dc.subject.ddc	530 Physics	en_GB
dc.title	Hyperpolarization of cis-15N2-azobenzene by parahydrogen at ultralow magnetic fields	en_GB
dc.type	Zeitschriftenaufsatz	de
dc.identifier.doi	http://doi.org/10.25358/openscience-8085	-
jgu.type.dinitype	article	en_GB
jgu.type.version	Published version	de
jgu.type.resource	Text	de
jgu.organisation.department	FB 08 Physik, Mathematik u. Informatik	de
jgu.organisation.number	7940	-
jgu.organisation.name	Johannes Gutenberg-Universität Mainz	-
jgu.rights.accessrights	openAccess	-
jgu.journal.title	ChemPhysChem	de
jgu.journal.volume	22	de
jgu.journal.issue	14	de
jgu.pages.start	1527	de
jgu.pages.end	1534	de
jgu.publisher.year	2021	-
jgu.publisher.name	Wiley	de
jgu.publisher.issn	1439-7641	de
jgu.organisation.place	Mainz	-
jgu.subject.ddccode	530	de
jgu.publisher.doi	10.1002/cphc.202100160	de
jgu.organisation.ror	https://ror.org/023b0x485	-
Appears in collections:	JGU-Publikationen

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