NDLI: Synthesis, structures and magnetic properties of [(η9-C9H9)Ln(η8-C8H8)] super sandwich complexes

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Synthesis, structures and magnetic properties of [(η9-C9H9)Ln(η8-C8H8)] super sandwich complexes

Content Provider	Semantic Scholar
Author	Münzfeld, L. Schoo, Christoph Bestgen, Sebastian Moreno-Pineda, Eufemio Köppe, R. Ruben, Mario Roesky, P. W.
Copyright Year	2019
Abstract	Sandwich complexes are an indispensable part of organometallic chemistry, which is becoming increasingly important in the field of lanthanide-based single molecule magnets. Herein, a fundamental class of pure sandwich complexes, [(η9-C9H9)Ln(η8-C8H8)] (Ln=Nd, Sm, Dy, Er), is reported. These neutral and sandwiched lanthanide compounds exclusively contain fully π-coordinated coplanar eight and nine membered CH rings. The magnetic properties of these compounds are investigated, leading to the observation of slow relaxation of the magnetization, including open hysteresis loops up to 10 K for the Er(III) analogue. Fast relaxation of the magnetization is likewise observed near zero field, a highly important characteristic for quantum information processing schemes. Our synthetic strategy is straightforward and utilizes the reaction of [(η8-C8H8)LnI(thf)n] complexes with [K(C9H9)]. Although all compounds are fully characterized, structural details of the title compounds can also be deduced by Raman spectroscopy only.Lanthanide sandwich complexes represent both a fundamental class of organometallic compounds and promising molecular magnets for information storage. Here the authors unveil a class of lanthanide sandwich complexes containing fully π-coordinated 8- and 9-membered rings, and show their slow relaxation of the magnetization.
File Format	PDF HTM / HTML
DOI	10.1038/s41467-019-10976-6
Alternate Webpage(s)	https://www.ruben-group.de/lit/2019_231_super%20sandwich.pdf
Alternate Webpage(s)	https://publikationen.bibliothek.kit.edu/1000097054/36149920
PubMed reference number	31316061
Alternate Webpage(s)	https://doi.org/10.1038/s41467-019-10976-6
Journal	Medline
Volume Number	10
Journal	Nature Communications
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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