%0 Journal Article
%A Baca, S.G.
%A Botezat, O.
%A Filippova, I.
%A Speldrich, M.
%A Jeanneau, E.
%A Kögerler, P.
%T A Heptanuclear Iron(III) Oxo-Carboxylate Cluster
%J Zeitschrift für anorganische und allgemeine Chemie
%V 637
%@ 0044-2313
%C Weinheim
%I Wiley-VCH
%M PreJuSER-19963
%D 2011
%Z Financial support was provided by the German Federal Ministry of Education and Research (Grant MDA 08/022) and the Academy of Sciences of Moldova (Grant No. 09.820.05.10GF). We thank the European Commission for an IIF Marie Curie Fellowship to S. G. B. (POLY-MAG, contract no. 252984).
%X A new heptanuclear iron(III) oxide pivalate cluster [Fe7O4(OH)(2)(O2CCMe3)(11)(bpm)(2)(H2O)] (1) (bpm = 2,2'-bipyrimidine) has been prepared and characterized. 1 features an asymmetric {Fe7O6} framework based on two corner-sharing {Fe-4(mu(3)-O)(2)} groups, themselves comprising {Fe-3(mu(3)-O)} motifs that are formally retained from the {Fe6O4} precursor used in thesynthesis of 1. Compared to existing Fe-III oxide carboxylate clusters, the {Fe7O6} fragment in 1 exhibits an unusually high Fe:O ratio, with all seven oxygen sites efficiently mediating magnetic exchange. Correspondingly, 1 shows strong intramolecular antiferromagnetic coupling.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000292334400003
%R 10.1002/zaac.201100021
%U https://juser.fz-juelich.de/record/19963