%0 Journal Article
%A Fielden, J.
%A Speldrich, M.
%A Besson, C.
%A Kögerler, P.
%T Chiral Hexanuclear Ferric Wheels
%J Inorganic chemistry
%V 51
%@ 0020-1669
%C Washington, DC
%I American Chemical Society
%M PreJuSER-22300
%P 2734 - 2736
%D 2012
%Z 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.
%X 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.
%K Circular Dichroism
%K Crystallography, X-Ray
%K Ferric Compounds: chemistry
%K Magnetic Resonance Spectroscopy
%K Models, Molecular
%K Stereoisomerism
%K Ferric Compounds (NLM Chemicals)
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:22332882
%U <Go to ISI:>//WOS:000301007100006
%R 10.1021/ic300042q
%U https://juser.fz-juelich.de/record/22300