Gutenberg Open Science: Spin crossover and long-live excited states in a reduced molecular ruby

Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-6257

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DC Field	Value	Language
dc.contributor.author	Becker, Patrick M.	-
dc.contributor.author	Förster, Christoph	-
dc.contributor.author	Carrella, Luca M.	-
dc.contributor.author	Boden, Pit	-
dc.contributor.author	Hunger, David	-
dc.contributor.author	van Slageren, Joris	-
dc.contributor.author	Gerhards, Markus	-
dc.contributor.author	Rentschler, Eva	-
dc.contributor.author	Heinze, Katja	-
dc.date.accessioned	2021-08-09T10:34:55Z	-
dc.date.available	2021-08-09T10:34:55Z	-
dc.date.issued	2020	-
dc.identifier.uri	https://openscience.ub.uni-mainz.de/handle/20.500.12030/6267	-
dc.description.abstract	The chromium(III) complex [CrIII(ddpd)2]3+ (molecular ruby; ddpd=N,N′-dimethyl-N,N′-dipyridine-2-yl-pyridine-2,6-diamine) is reduced to the genuine chromium(II) complex [CrII(ddpd)2]2+ with d4 electron configuration. This reduced molecular ruby represents one of the very few chromium(II) complexes showing spin crossover (SCO). The reversible SCO is gradual with T1/2 around room temperature. The low-spin and high-spin chromium(II) isomers exhibit distinct spectroscopic and structural properties (UV/Vis/NIR, IR, EPR spectroscopies, single-crystal XRD). Excitation of [CrII(ddpd)2]2+ with UV light at 20 and 290 K generates electronically excited states with microsecond lifetimes. This initial study on the unique reduced molecular ruby paves the way for thermally and photochemically switchable magnetic systems based on chromium complexes complementing the well-established iron(II) SCO systems.	en_GB
dc.language.iso	eng	de
dc.rights	CC BY	*
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/	*
dc.subject.ddc	540 Chemie	de_DE
dc.subject.ddc	540 Chemistry and allied sciences	en_GB
dc.title	Spin crossover and long-live excited states in a reduced molecular ruby	en_GB
dc.type	Zeitschriftenaufsatz	de
dc.identifier.doi	http://doi.org/10.25358/openscience-6257	-
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	26	de
jgu.journal.issue	32	de
jgu.pages.start	7199	de
jgu.pages.end	7204	de
jgu.publisher.year	2020	-
jgu.publisher.name	Wiley-VCH	de
jgu.publisher.place	Weinheim	de
jgu.publisher.uri	https://doi.org/10.1002/chem.202001237	de
jgu.publisher.issn	1521-3765	de
jgu.organisation.place	Mainz	-
jgu.subject.ddccode	540	de
jgu.publisher.doi	10.1002/chem.202001237
jgu.organisation.ror	https://ror.org/023b0x485
Appears in collections:	JGU-Publikationen

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