Journal Article

PreJuSER-22300

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Chiral Hexanuclear Ferric Wheels

Fielden, J. ; Speldrich, M. ; Besson, C.FZJ* ; Kögerler, P.FZJ*

2012
American Chemical Society Washington, DC

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Please use a persistent id in citations: doi:10.1021/ic300042q

Abstract: The homochiral iron(III) wheels [Fe(6){(S)-pedea}(6)Cl(6)] and [Fe(6){(R)-pedea)}(6)Cl(6)] [(R)- and (S)-2; pedea = phenylethylaminodiethoxide] exhibit high optical activities and antiferromagnetic exchange. These homochiral products react with each other, producing the centrosymmetric, crystallographically characterized [Fe(6){(S)-pedea}(3){(R)-pedea}(3)Cl(6)] diastereomer [(RSRSRS)-2]. (1)H NMR and UV-vis studies indicate that exchange processes are slow in both homo- and heterochiral systems but that, upon combination, the reaction between (R)- and (S)-2 occurs quickly.

Keyword(s): Circular Dichroism (MeSH) ; Crystallography, X-Ray (MeSH) ; Ferric Compounds: chemistry (MeSH) ; Magnetic Resonance Spectroscopy (MeSH) ; Models, Molecular (MeSH) ; Stereoisomerism (MeSH) ; Ferric Compounds ; J

Note: We thank Joost de Groot (Forschungszentrum Julich) and Louise Natrajan (University of Manchester) for help with X-ray diffraction and paramagnetic NMR. Work at the Ames Laboratory was supported by the Department of Energy, Basic Energy Sciences, under Contract DE-AC02-07CH11358.

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Contributing Institute(s):

1. Elektronische Eigenschaften (PGI-6)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2012

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Database coverage:
; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

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