Gutenberg Open Science: Towards luminescent vanadium(II) complexes with slow magnetic relaxation and quantum coherence

Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-10164

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DC Field	Value	Language
dc.contributor.author	Dorn, Matthias	-
dc.contributor.author	Hunger, David	-
dc.contributor.author	Förster, Christoph	-
dc.contributor.author	Naumann, Robert	-
dc.contributor.author	van Slageren, Joris	-
dc.contributor.author	Heinze, Katja	-
dc.date.accessioned	2024-03-07T13:11:55Z	-
dc.date.available	2024-03-07T13:11:55Z	-
dc.date.issued	2022	-
dc.identifier.uri	https://openscience.ub.uni-mainz.de/handle/20.500.12030/10182	-
dc.description.abstract	Molecular entities with doublet or triplet ground states find increasing interest as potential molecular quantum bits (qubits). Complexes with higher multiplicity might even function as qudits and serve to encode further quantum bits. Vanadium(II) ions in octahedral ligand fields with quartet ground states and small zero-field splittings qualify as qubits with optical read out thanks to potentially luminescent spin-flip states. We identified two V2+ complexes [V(ddpd)2]2+ with the strong field ligand N,N’-dimethyl-N,N’-dipyridine-2-yl-pyridine-2,6-diamine (ddpd) in two isomeric forms (cis-fac and mer) as suitable candidates. The energy gaps between the two lowest Kramers doublets amount to 0.2 and 0.5 cm−1 allowing pulsed EPR experiments at conventional Q-band frequencies (35 GHz). Both isomers possess spin-lattice relaxation times T1 of around 300 μs and a phase memory time TM of around 1 μs at 5 K. Furthermore, the mer isomer displays slow magnetic relaxation in an applied field of 400 mT. While the vanadium(III) complexes [V(ddpd)2]3+ are emissive in the near-IR-II region, the [V(ddpd)2]2+ complexes are non-luminescent due to metal-to-ligand charge transfer admixture to the spin-flip states.	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	540 Chemie	de_DE
dc.subject.ddc	540 Chemistry and allied sciences	en_GB
dc.title	Towards luminescent vanadium(II) complexes with slow magnetic relaxation and quantum coherence	en_GB
dc.type	Zeitschriftenaufsatz	de
dc.identifier.doi	http://doi.org/10.25358/openscience-10164	-
jgu.type.contenttype	Scientific article	de
jgu.type.dinitype	article	en_GB
jgu.type.version	Published version	de
jgu.type.resource	Text	de
jgu.organisation.department	FB 09 Chemie, Pharmazie u. Geowissensch.	de
jgu.organisation.number	7950	-
jgu.organisation.name	Johannes Gutenberg-Universität Mainz	-
jgu.rights.accessrights	openAccess	-
jgu.journal.title	Chemistry : a European journal	de
jgu.journal.volume	29	de
jgu.journal.issue	9	de
jgu.pages.alternative	e202202898	de
jgu.publisher.year	2022	-
jgu.publisher.name	Wiley	de
jgu.publisher.place	Weinheim	de
jgu.publisher.issn	1521-3765	de
jgu.organisation.place	Mainz	-
jgu.subject.ddccode	540	de
jgu.publisher.doi	10.1002/chem.202202898	de
jgu.organisation.ror	https://ror.org/023b0x485	-
jgu.subject.dfg	Naturwissenschaften	de
Appears in collections:	DFG-491381577-H

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