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dc.contributor.author
Jackl, Moritz K.
dc.contributor.author
Gordon, Christopher
dc.contributor.author
Copéret, Christophe
dc.contributor.author
Bode, Jeffrey W.
dc.date.accessioned
2021-01-08T18:02:06Z
dc.date.available
2020-12-08T15:47:38Z
dc.date.available
2020-12-10T09:24:01Z
dc.date.available
2021-01-08T18:02:06Z
dc.date.issued
2020-12
dc.identifier.issn
0018-019X
dc.identifier.issn
1522-2675
dc.identifier.other
10.1002/hlca.202000179
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/455392
dc.description.abstract
A method for the synthesis of rigid nitroxide biradicals with various spatial orientations between the radical centers is reported. Diketones were employed as substrates for tin amine protocol (SnAP) reagents to provide the parent spirocyclic diamines. Oxidation by peroxyacids provided the corresponding nitroxide biradicals. A set of four different biradicals with various interelectron distances and torsion angles between the radical planes was synthesized using this method. The exact geometries were determined by X‐ray crystallography and the biradicals were investigated by EPR spectroscopy and evaluated for their dynamic nuclear polarization (DNP) performance. 1H‐DNP enhancements in the range of 1.2–2.1 at 14.1 Tesla (600 MHz spectrometer) were achieved. This synthetic methodology opens a promising alternative to access nitroxide biradicals with various torsional angles and inter radical distances. © 2020 Wiley‐VHCA AG.
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley
en_US
dc.subject
Biradicals
en_US
dc.subject
DNP
en_US
dc.subject
EPR
en_US
dc.subject
Spiro compounds
en_US
dc.subject
SnAP
en_US
dc.subject
Tin
en_US
dc.title
Spirocyclic Nitroxide Biradicals: Synthesis and Evaluation as Dynamic Nuclear Polarizing Agents
en_US
dc.type
Journal Article
dc.date.published
2020-10-27
ethz.journal.title
Helvetica Chimica Acta
ethz.journal.volume
103
en_US
ethz.journal.issue
12
en_US
ethz.journal.abbreviated
Helv. Chim. Acta
ethz.pages.start
e2000179
en_US
ethz.size
12 p.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
New York, NY
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02513 - Laboratorium für Anorganische Chemie / Laboratory of Inorganic Chemistry::03872 - Copéret, Christophe / Copéret, Christophe
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02514 - Laboratorium für Organische Chemie / Laboratory of Organic Chemistry::03861 - Bode, Jeffrey W. / Bode, Jeffrey W.
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02513 - Laboratorium für Anorganische Chemie / Laboratory of Inorganic Chemistry::03872 - Copéret, Christophe / Copéret, Christophe
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02514 - Laboratorium für Organische Chemie / Laboratory of Organic Chemistry::03861 - Bode, Jeffrey W. / Bode, Jeffrey W.
ethz.date.deposited
2020-12-08T15:47:46Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-01-08T18:02:20Z
ethz.rosetta.lastUpdated
2022-03-29T04:45:35Z
ethz.rosetta.versionExported
true
ethz.COinS
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