%0 Journal Article
%A Boeddinghaus, M. Bele
%A Klein, Wilhelm
%A Wahl, Bernhard
%A Jakes, Peter
%A Eichel, Rüdiger-A.
%A Fässler, Thomas F.
%T C 60 3- versus C 60 4- /C 60 2- - Synthesis and Characterization of Five Salts Containing Discrete Fullerene Anions
%J Zeitschrift für anorganische und allgemeine Chemie
%V 640
%N (5)
%@ 0044-2313
%C Weinheim
%I Wiley-VCH
%M FZJ-2014-01748
%P 701-712
%D 2014
%Z Bitte POF III ergänzen. Vielen Dank.Early View, Keywords: Crystal structure determination; Fullerenes; Jahn-Teller effect; Magnetic properties; Polyanions
%X Five new compounds, [Rb(18crown-6)]3[C60] (1), [Rb(18crown-6)]6[C60]2(C3H7NO)2(C4H8O)2 (2), [Rb(benzo18crown-6)]6[C60]2(C2H8N2)5 (3), [Cs(benzo18crown-6)]3C60(C2H8N2)2 (4), and [Cs3(benzo18crown-6)5]C60(C2H8N2)(4.5+x) (5) were synthesized and characterized by single-crystal X-ray structure determination. All compounds contain discrete C60 anions, which are ordered in 1, 2, and 4, where direct cation-anion contacts occur. The unit cells of 1 and 2 contain two independent fullerides, which coordinate to the rubidium atoms either of two or of four [Rb(18crown-6)] units. Owing to the presence of differently coordinated fullerene units in compounds 1 and 2, a possible disproportionation of C603– into C602– and C604– anions is discussed. In 3 and 4 the C60 anions are coordinated by three Rb and Cs atoms, respectively. In all compounds the average charge of the anion is –3. Magnetic data reveal a doublet spin state for 3. The EPR spectra are discussed for compounds 3 and 5. The role of a dynamic Jahn-Teller distortion is discussed, and we report the first IR spectroscopic data of fullerene trianions, which have been obtained in solution.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000333697200004
%R 10.1002/zaac.201300607
%U https://juser.fz-juelich.de/record/151898